7.5
CVSSv2

CVE-2019-19781

Published: 27/12/2019 Updated: 08/01/2020
CVSS v2 Base Score: 7.5 | Impact Score: 6.4 | Exploitability Score: 10
CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Summary

An issue exists in Citrix Application Delivery Controller (ADC) and Gateway 10.5, 11.1, 12.0, 12.1, and 13.0. They allow Directory Traversal.

Vulnerability Trend

Vendor Advisories

A vulnerability has been identified in Citrix Application Delivery Controller (ADC) formerly known as NetScaler ADC and Citrix Gateway formerly known as NetScaler Gateway that, if exploited, could allow an unauthenticated attacker to perform arbitrary code execution The scope of this vulnerability includes Citrix ADC and Citrix Ga ...
A vulnerability has been identified in Citrix Application Delivery Controller (ADC) formerly known as NetScaler ADC and Citrix Gateway formerly known as NetScaler Gateway that, if exploited, could allow an unauthenticated attacker to perform arbitrary code execution The scope of this vulnerability includes Citrix ADC and Citrix Ga ...

Mailing Lists

Citrix Application Delivery Controller and Citrix Gateway remote code execution proof of concept exploit ...
This is an nmap nse script to test for the path traversal vulnerability in Citrix Application Delivery Controller (ADC) and Gateway ...
This Metasploit module exploits a remote code execution vulnerability in Citrix Application Delivery Controller and Gateway version 105 ...
Citrix Application Delivery Controller and Citrix Gateway directory traversal remote code execution exploit ...
This Metasploit module exploits a directory traversal in Citrix Application Delivery Controller (ADC), aka NetScaler, and Gateway 105, 111, 120, 121, and 130, to execute an arbitrary command payload ...

Metasploit Modules

Citrix ADC (NetScaler) Directory Traversal RCE

This module exploits a directory traversal in Citrix Application Delivery Controller (ADC), aka NetScaler, and Gateway 10.5, 11.1, 12.0, 12.1, and 13.0, to execute an arbitrary command payload.

msf > use exploit/linux/http/citrix_dir_traversal_rce
msf exploit(citrix_dir_traversal_rce) > show targets
    ...targets...
msf exploit(citrix_dir_traversal_rce) > set TARGET < target-id >
msf exploit(citrix_dir_traversal_rce) > show options
    ...show and set options...
msf exploit(citrix_dir_traversal_rce) > exploit
Citrix ADC (NetScaler) Directory Traversal Scanner

This module exploits a directory traversal vulnerability (CVE-2019-19781) within Citrix ADC (NetScaler). It requests the smb.conf file located in the /vpns/cfg directory by issuing the request /vpn/../vpns/cfg/smb.conf. It then checks if the server is vulnerable by looking for the presence of a "[global]" directive in smb.conf, which this file should always contain.

msf > use auxiliary/scanner/http/citrix_dir_traversal
msf auxiliary(citrix_dir_traversal) > show actions
    ...actions...
msf auxiliary(citrix_dir_traversal) > set ACTION < action-name >
msf auxiliary(citrix_dir_traversal) > show options
    ...show and set options...
msf auxiliary(citrix_dir_traversal) > run

Github Repositories

Audit Guide for the Citrix ADC Vulnerability CVE-2019-19871. Collected from multiple sources and threat assessments. Will be updated as new methods come up.

Update 1-22-2020 There is now a tool from FireEye that will help scan these items below The key to this is that you need to have enough logs to go back to 1-9-2020 to have a chance to see what was done beyond the exploit was ran If it finds XML payload files then you need to use the information below to make a decision on what action to take wwwfireeyecom/blog/pr

This is a tool published for the Citrix ADC (NetScaler) vulnerability. We are only disclosing this due to others publishing the exploit code first.

CVE-2019-19781 This was only uploaded due to other researchers publishing their code first We would have hoped to have had this hidden for awhile longer while defenders had appropriate time to patch their systems We are all for responsible disclosure, in this case - the cat was already out of the bag Exploits: CVE-2019-19781 Citrixmash (CVE-2019-19781 exploit) root@stronghol

CVE-2019-19781 CVE-2019-19781 Module for Router Scan Project How To Use prepare pip3 install ipcalc,requests usage python3 scannerpy Copyright some part of this repository that send tcp response is partly forked from trustedsec/cve-2019-19781 with some changes for APIs of Router Scan Project

Exploit Citrix - Remote Code Execution Bug: CVE-2019-19781 This tool is ported to Golang from githubcom/trustedsec/cve-2019-19781/blob/master/citrixmashpy Writeup and mitigation: wwwtrustedseccom/blog/critical-exposure-in-citrix-adc-netscaler-unauthenticated-remote-code-execution/ Forensics and IoC Blog: wwwtrustedseccom/blog/netscaler-remote-code

Simple tool for testing vulnerability to CVE 2019-19781

CVE-2019-19781 The intent of this project is to wrap up the tool published by CISA to test for vulnerably for CVE-2019-19781 See wwwus-certgov/ncas/current-activity/2020/01/13/cisa-releases-test-citrix-adc-and-gateway-vulnerability for the CERT announcement about the tool See the following for more information on the vulnerability: supportcitrixcom/article

IOCs for CVE-2019-19781

CVE-2019-19781_IOCs IOCs for CVE-2019-19781 citrixhoneypotnslookuptxt contains whois results for the IP addresses listed in ipstxt these were the addresses that showed up most frequently in the logs of the honeypot discussed here: wwwdigitalshadowscom/blog-and-research/cve-2019-19781-analyzing-the-exploit/

Test a host for susceptibility to CVE-2019-19781

check-cve-2019-19781 This utility determines if a host appears susceptible to CVE-2019-19781 Requirements Python versions 36 and above Note that Python 2 is not supported Installation From a release: pip install githubcom/cisagov/check-cve-2019-19781/releases/download/v102/cve_2019_19781-102-py3-none-anywhl From source: git clone githubcom/cisa

CVE-2019-19781 To use this scanner goto cve-2019-19781azurewebsitesnet Features Scan for IPs/Hostnames that are exposted to CVE 2019 19781 Scan offline database for leaked wildcard certificates Credits This project is based on this project: Citrixmash v01 - Exploits the Citrix Directory Traversal Bug: CVE-2019-19781 Tool Written by: Rob Simon and Dave Kennedy Contr

Here a list of useful information about threats and scams related to Coronavirus Disease 2019 (COVID-19)

COVID-19 Response Covid19 Response will share tools and resources for security incident response and cyber defence, aimed to help systems adminstrators or anyone to protect against threats using desease outbreak as a vector cve-2019-19781 - Check citrix gateway that are vulnerable to CVE-2019-19781 threatlist - Hashes, files, phishing, etc Useful Links Windows Defender AT

CVE-2019-19781 - Remote Code Execution on Citrix ADC Netscaler exploit

CVE-2019-19781 Remote Code Execution (RCE) in Citrix Application Delivery Controller and Citrix Gateway A vulnerability has been identified in Citrix Application Delivery Controller (ADC) formerly known as NetScaler ADC and Citrix Gateway formerly known as NetScaler Gateway that, if exploited, could allow an unauthenticated attacker to perform arbitrary code execution EDIT:

Citrix ADC Remote Code Execution

CVE-2019-19781 Citrix ADC Remote Code Execution python usage: python CVE-2019-19781py 1921683244 0x01 download NSVPX-ESX-130-4722_nc_64zip wwwcitrixcom/downloads/citrix-gateway/ configure static networ 0x02 nmap scan Scanning 1921683244 [65535 ports] Discovered open port 80/tcp on 1921683244 Discovered open port 22/tcp on 1921683244 Discove

My Citrix ADC NetScaler CVE-2019-19781 Vulnerability DFIR notes.

Based on a Splunk perspective Below resources show that ingesting your logs is essential from proper analysis of the Indicators Of Compromise Never waste a good crisisingest all the logs Impact / Root Cause: Remote pre-auth arbitrary command execution due to logic vuln ie reliable execution possible Some Resources supportcitrixcom/article/CTX267027 www

Citrix ADC Remote Code Execution

CVE-2019-19781 Citrix ADC Remote Code Execution python usage: python CVE-2019-19781py 1921683244 0x01 download NSVPX-ESX-130-4722_nc_64zip wwwcitrixcom/downloads/citrix-gateway/ configure static networ 0x02 nmap scan Scanning 1921683244 [65535 ports] Discovered open port 80/tcp on 1921683244 Discovered open port 22/tcp on 1921683244 Discove

Citrix Unauthorized Remote Code Execution Attacker - CVE-2019-19781

Citrix Unauthorized Remote Code Execution Attacker - CVE-2019-19781 References: blogfox-itcom/2020/07/01/a-second-look-at-cve-2019-19781-citrix-netscaler-adc/ Bypassing: 1 - Deleted / Modified scripts at: /vpn//vpns/portal/scripts/* 2 - Forward Slash ("/") issues after perl commnad injection (template injection) attack

Repository for penetration testing tools

Pentest-Detections Repository for penetration testing tools WannaCry_NotPetya_FastDetect : Vulnerability scanner for MS17-010 IPv4, IPv6 compatible Very fast and flexible Citrix_CVE-2019-19781 : Vulnerability scanner for Citrix CVE-2019-19781 Very fast and flexible

Remote Code Execution Exploit for Citrix Application Delivery Controller and Citrix Gateway [ CVE-2019-19781 ]

CVE-2019-19781 Remote Code Execution Exploit for Citrix Application Delivery Controller and Citrix Gateway [ CVE-2019-19781 ] Usage : bash CVE-2019-19781sh IP_OF_VULNURABLE_HOST COMMAND_TO_EXECUTE eg : bash CVE-2019-19781sh XXXXXXXX 'cat /etc/passwd' Reference : supportcitrixcom/article/CTX267027 nvdnistgov/vuln/detail/CVE-2019-19781 https:/

CVE-2019-19781 Attack Triage Script

CVE-2019-19781 CVE-2019-19781 Attack Triage Script The script can be run on your affected Citrix ADC devices to assist in determining if a compromise has occured It will quicky capture any associated commands or files that were used as part of the attack (unless cleanup has occured): $ /CVE-2019-19781-Triagesh Disclaimer: Best efforts were made to test the script provided, h

Indicator of Compromise Scanner for CVE-2019-19781

Indicator of Compromise Scanner for CVE-2019-19781 This repository contains a utility for detecting compromises of Citrix ADC Appliances related to CVE-2019-19781 The utility, and its resources, encode indicators of compromise collected during FireEye Mandiant investigations To learn more, please read the blog announcing this tool's release In summary the utility will:

Remote Code Execution Exploit (CVE-2019-19781)- Citrix Application Delivery Controller &amp; Gateway Remote Code Execution Exploit for Citrix Application Delivery Controller and Citrix Gateway [ CVE-2019-19781 ] Usage : bash CVE-2019-19781sh IP_OF_VULNURABLE_HOST COMMAND_TO_EXECUTE eg : bash CVE-2019-19781sh XXXXXXXX 'cat /etc/passwd' Live Demo of Exploiting

a script to look for CVE-2019-19781 Vulnerability within a domain and it's subdomains

citrixvulncheck A script to look for CVE-2019-19781 Vulnerability within a domain and it's subdomains

All Working Exploits

Remote Code Execution Exploit (CVE-2019-19781)- Citrix Application Delivery Controller &amp; Gateway Remote Code Execution Exploit for Citrix Application Delivery Controller and Citrix Gateway [ CVE-2019-19781 ] Usage : bash CVE-2019-19781sh IP_OF_VULNURABLE_HOST COMMAND_TO_EXECUTE eg : bash CVE-2019-19781sh XXXXXXXX 'cat /etc/passwd' Live Demo of Exploiting

A fast multi threaded scanner for Citrix ADC (NetScaler) CVE-2019-19781 - Citrixmash / Shitrix

CVE-2019-19781 citrixmash scanner A multithreaded scanner for Citrix appliances that are vulnerable to CVE-2019-19781 The scanner does not attempt to compromise/exploit hosts and avoids downloading any sensitive content A HEAD request is used to determine if a target is vulnerable False positives are reduced by verifying a specific value in the content-length header response

Detect-CVE-2019-19781 Set the $IP variable to your own server to detect if its vulnerable

Citrix ADC scanner (CVE-2019-19781) using hosts retrieved from Shodan API.

CVE-2019-19781 Automated script for Citrix ADC scanner (CVE-2019-19781) using hosts retrieved from Shodan API You must have a Shodan account to use this script Click here if you don't have Shodan account Installation Install dependencies # CentOS &amp; Fedora yum install git python3 -y # Ubuntu &amp; Debian apt install git python3 python3-pip

CVE-2019-19781漏洞批量测试脚本

CVE-2019-19781漏洞批量测试脚本

My working exploit script for Shitrix (CVE-2019-19781)

Shitrix-CVE-2019-19781 My working approach to exploiting Shitrix Updated 21st July, 2020 - now supports multi-worded commands and forward slashes You need curl &gt;= 7420 Call it with, eg: /shitrixsh target port ls -al

Gather a list of Citrix appliances in a country / state pair, and check if they're vulnerable to CVE-2019-19781

shitsniffer Gather a list of Citrix appliances in a country / state pair, and check if they're vulnerable to CVE-2019-19781 Results are output as JSON which can be wrangled quite nicely into a meaningful PowerBI report It does this by querying Shodan for all results in a particular country matching a search string By default, it searches country:AU has_ssl:true with the

Shitrix : CVE-2019-19781 - Remote Code Execution on Citrix ADC Netscaler exploit

CVE-2019-19781 Simple POC to test if your Citrix ADC Netscaler is vulnerable to CVE-2019-19781 Usage : python &lt;TARGET&gt; &lt;TARGETPORT&gt; &lt;CMD&gt; This is proxified by default on tor default port --&gt; 127001:9050 You'll need PySocks, requests and urllib3 Security advisory supportcitrixcom/article/CTX267027

This Is just My Personal Note For Fast-IR

DFIR-Note This Is just My Personal Note For Fast-IR What are the Most Tragted Servers By the Adversy and Why : 1-SCCM is a platform that allows for an enterprise to package and deploy operating systems, software, and software updatesIf you can gain access to SCCM, it makes for a great attack platform It heavily integrates Windows PowerShell, has excellent network visibility,

Search data for trickiness and obfuscation.

trickt Finds and converts obfuscated strings into a human readable form Install $ pip3 install trickt Run Searching individual strings I refer to obfuscation as trickiness because I'm a child at heart trickt outputs strings as byte strings so you can see if there are goofy characters visually You can pass a file path to read and decode or decode a string directly Base6

This is a repository with links Python for Web Application

The Python Web Apps Guide A Python repository to facilitate studies [WARNING] The links cited here were extracted from various sites and are for study use, I am sharing them so that as well as I can learn, I hope I have not infringed any copyright; and if your website, repository or any other link is here and the owner would not like it to be, please contact us so you can wit

Jupyter notebook to help automate some of the forensic analysis related to Citrix Netscalers compromised via CVE-2019-19781

Citrix Analysis Notebook A jupyter notebook to aid in automating some of the forensic analysis related to Citrix Netscaler hosts compromised via CVE-2019-19781 For help retrieving artifacts to examine see this Citrix triage script All notes/suggestions are welcome Feel free to submit pull requests or issues Disclaimer: Not intended to be a be-all end-all solution, just ther

Remote Code Execution Exploit for Citrix Application Delivery Controller and Citrix Gateway [ CVE-2019-19781 ]

CVE-2019-19781 Remote Code Execution Exploit for Citrix Application Delivery Controller and Citrix Gateway [ CVE-2019-19781 ] Usage : bash CVE-2019-19781sh IP_OF_VULNURABLE_HOST COMMAND_TO_EXECUTE eg : bash CVE-2019-19781sh XXXXXXXX 'cat /etc/passwd'

批量概念驗證用

CVE-2019-19781 批量概念驗證用 使用限制 1使用前資料夾內需包含"datatxt"檔案,內容為19216810/24\n 19216820/24\n 2僅在linux下執行, python3 CVE-2019-19781-test_batapy 3若可成功執行並發現漏洞,匯出於"CVE-2019-19781txt"

Detectar vulnerabilidades de Path traversal con nmap

nmap simples script para nmap para detectar Path Traversal Uso: Por ejemplo: nmap -Pn -p443 -sVC --script=CVE-2019-19781nse

Automated script for Citrix ADC scanner (CVE-2019-19781) using hosts retrieved from Shodan API. You must have a Shodan account to use this script.

CVE-2019-19781 Automated script for Citrix ADC scanner (CVE-2019-19781) using hosts retrieved from Shodan API You must have a Shodan account to use this script Click here if you don't have Shodan account Installation Install dependencies # CentOS &amp; Fedora yum install git python3 -y # Ubuntu &amp; Debian apt install git python3 python3-pip

URL collection from browsing twitter

URL collection from browsing twitter Coronavirus COVID-19 (2019-nCoV) ephemera-miscellany/[ShmooCon 2018] Listing the 1337 - Adventures in Curating HackerTwitter's Institutional Knowledge (@hexwaxwing + @DanielGallagher)pdf at master · 1337list/ephemera-miscellany · GitHub GitHub - felixgr/secure-ios-app-dev: Collection of the most common vulnerabilities f

CVE-2019-19781 支持批量检测 Usage: python CVE-2019-19781py 检测目标URL,需在脚本当前目录下创建:urltxt urltxt,一行一个: xxx:port/ xxx:port/ 输出: 存在漏洞链接:restxt 错误链接:logtxt

citrix-vuln-checker run the script in your terminal to check if your CITRIX SERVER is vulnerable to the CVE-2019-19781

citrix adc rce

Citrix_CVE-2019-19781 Citrix ADC Remote Code Execution

Automated forensic script hunting for cve-2019-19781

CVE-2019-19781-Forensic Note : My advice is now to use the official tool published by fireeye &amp; citrix : githubcom/fireeye/ioc-scanner-CVE-2019-19781 This little script was created to help security analyst to discover traces of successful CVE-2019-19781 exploits on their systems Feel free to fork and improve ! You can find an example of output on a compromised

Citrix ADC (NetScaler) Honeypot. Supports detection for CVE-2019-19781 and login attempts

Citrix ADC (NetScaler) Honeypot Detects and logs payloads for CVE-2019-19781 (Shitrix / Citrixmash) Logs failed login attempts Serves content and headers taken from real appliance in order to increase chance of indexing on search engines (eg google, shodan etc) Installation Precompiled Precompiled Linux (x64) package available here mkdir citrix-honeypot cd citrix-honeypot

Check your website for CVE-2019-19781 Vulnerable

CVE-2019-19781-Checker Check your website for CVE-2019-19781 Vulnerable #VISIT citrix-checkercom TO CHECK IF YOU ARE VULNERABLE FOR CVE-2019-19781 PLEASE USE OUR CHECKER TWO TIMES TO BE SURE This website gives you the results if your service is vulnerable for CVE-2019-19781 There is a responder policy to mitigate the issue until there is a permanent fix To apply the

A Citrix Netscaler honeypot

Honeypot for CVE-2019-19781 (Citrix ADC) Detect and log CVE-2019-19781 scan and exploitation attempts Based on MalwareTech's Citrix honeypot but heavily rewritten Prerequisites openssl (used only once, to create a self-signed HTTPS certificate) a working MySQL server (only if you use the MySQL output plugin) Usage Check the installation document for more informatio

修改的poc,适用于python3

CVE-2019-19781-poc 修改的poc,适用于python3 python3 CVE-2019-19781py examplecom

CVE-2019-19781 bash exploit

citrixsh CVE-2019-19781 bash exploit using : bash citrixsh $domaincom Cyber-WarriorOrg / AKINCILAR / mit

CVE-2019-19781 Citrix RCE

CVE-2019-19781 Citrix ADC Remote Command Execution Reference: wwwexploit-dbcom/exploits/47901

Citrix Netscaler RCE

CVE-2019-19781 Citrix Netscaler RCE

A small collection of network traffic packet captures

pcap A small collection of network traffic packet captures CVE-2019-19781 Added on 2020-01-14 to host PCAP referenced in the "Rough Patch: I Promise It'll Be 200 OK" blog: First PCAP file - GET request for exploit scanning - checking conf file for a 200 OK response Second PCAP file - POST request exploiting the vulnerability using TrustedSec's publicly-ava

Citrix-CVE-2019-19781

Detect and log CVE-2019-19781 scan and exploitation attempts.

Honepot for CVE-2019-19781 (Citrix ADC) Detect and log CVE-2019-19781 scan and exploitation attempts Requirements: python3 openssl Usage: Clone repo: git clone githubcom/MalwareTech/CitrixHoneypotgit CitrixHoneypot &amp;&amp; cd CitrixHoneypot Make ssl and logs directory: mkdir logs ssl Generate self signed SSL certificate: openssl req -newkey rsa:2048 -no

This utility can help determine if indicators of compromise (IOCs) exist in the log files of a Pulse Secure VPN Appliance for CVE-2019-11510.

check-your-pulse This utility can help determine if indicators of compromise (IOCs) exist in the log files of a Pulse Secure VPN Appliance for CVE-2019-11510 The Cybersecurity and Infrastructure Security Agency (CISA) has seen many organ izations breached despite patching their appliance because of Active Directory credentials (to include Domain Admin) harvested prior to

Pentest-Tools General usefull Powershell Scripts AMSI Bypass restriction Bypass Payload Hosting Network Share Scanner Lateral Movement Reverse Shellz POST Exploitation Pivot Backdoor finder Persistence on windows Web Application Pentest Framework Discovery Framework Scanner / Exploitation Web Vulnerability Scanner / Burp Plugins Network- / Service-level Vulnerability Scanner C

Useful Pentest tool links

Pentest-Tools Red-Team-Essentialss General usefull Powershell Scripts AMSI Bypass restriction Bypass Payload Hosting Network Share Scanner Lateral Movement Reverse Shellz POST Exploitation Pivot Backdoor finder Persistence on windows Web Application Pentest Framework Discovery Framework Scanner / Exploitation Web Vulnerability Scanner / Burp Plugins Network- / Service-level Vu

Pentest-Tools General usefull Powershell Scripts AMSI Bypass restriction Bypass Payload Hosting Network Share Scanner Lateral Movement Reverse Shellz POST Exploitation Pivot Backdoor finder Persistence on windows Web Application Pentest Framework Discovery Framework Scanner / Exploitation Web Vulnerability Scanner / Burp Plugins Network- / Service-level Vulnerability Scanner C

Pentest-Tools General usefull Powershell Scripts AMSI Bypass restriction Bypass Payload Hosting Network Share Scanner Lateral Movement Reverse Shellz POST Exploitation Pivot Backdoor finder Persistence on windows Web Application Pentest Framework Discovery Framework Scanner / Exploitation Web Vulnerability Scanner / Burp Plugins Network- / Service-level Vulnerability Scanner C

Awesome hacking is an awesome collection of hacking tools.

Awesome Hacking Awesome hacking is a curated list of hacking tools for hackers, pentesters and security researchers Its goal is to collect, classify and make awesome tools easy to find by humans, creating a toolset you can checkout and update with one command This is not only a curated list, it is also a complete and updated toolset you can download with one-command! You can

Awesome Hacking Awesome hacking is a curated list of hacking tools for hackers, pentesters and security researchers Its goal is to collect, classify and make awesome tools easy to find by humans, creating a toolset you can checkout and update with one command This is not only a curated list, it is also a complete and updated toolset you can download with one-command! You can

红方人员作战执行手册

红方人员实战手册 声明 Author : By klion Date : 2020215 寄语 : 愿 2020 后面的每一天都能一切安好 分享初衷 一来, 旨在为 "攻击" / "防御"方 提供更加全面实用的参考 还是那句老闲话 "未知攻焉知防", 所有单纯去说 "攻" 或者 "防" 的都是耍流氓, 攻守兼备

Community curated list of template files for the nuclei engine to find security vulnerability and fingerprinting the targets.

Templates are the core of nuclei scanner which power the actual scanning engine This repository stores and houses various templates for the scanner provided by our team as well as contributed by the community We hope that you also contribute by sending templates via pull requests and grow the list Template Directory ├── LICENSE ├── READMEmd ├── basic-dete

红方人员作战执行手册

红方人员实战手册 声明 Author : By klion Date : 2020215 寄语 : 愿 2020 后面的每一天都能一切安好 分享初衷 一来, 旨在为 "攻击" / "防御"方 提供更加全面实用的参考 还是那句老闲话 "未知攻焉知防", 所有单纯去说 "攻" 或者 "防" 的都是耍流氓, 攻守兼备

Penetration_Testing_POC 搜集有关渗透测试中用到的POC、脚本、工具、文章等姿势分享,作为笔记吧,欢迎补充。 Penetration_Testing_POC 请善用搜索[Ctrl+F]查找 IOT Device&amp;Mobile Phone Web APP 提权辅助相关 PC tools-小工具集合 文章/书籍/教程相关 说明 请善用搜索[Ctrl+F]查找 IOT Device&amp;Mobile

Penetration_Testing_POC 搜集有关渗透测试中用到的POC、脚本、工具、文章等姿势分享,作为笔记吧,欢迎补充。 Penetration_Testing_POC 请善用搜索[Ctrl+F]查找 IOT Device&amp;Mobile Phone Web APP 提权辅助相关 PC tools-小工具集合 文章/书籍/教程相关 说明 请善用搜索[Ctrl+F]查找 IOT Device&amp;Mobile

渗透测试有关的POC、EXP、脚本、提权、小工具等,欢迎补充、完善---About penetration-testing python-script poc getshell csrf xss cms php-getshell domainmod-xss penetration-testing-poc csrf-webshell cobub-razor cve rce sql sql-poc poc-exp bypass oa-getshell cve-cms

Penetration_Testing_POC 搜集有关渗透测试中用到的POC、脚本、工具、文章等姿势分享,作为笔记吧,欢迎补充。 Penetration_Testing_POC 请善用搜索[Ctrl+F]查找 IOT Device&amp;Mobile Phone Web APP 提权辅助相关 PC tools-小工具集合 文章/书籍/教程相关 说明 请善用搜索[Ctrl+F]查找 IOT Device&amp;Mobile

公开收集所用

Penetration_Testing_POC 搜集有关渗透测试中用到的POC、脚本、工具、文章等姿势分享,作为笔记吧,欢迎补充。 Penetration_Testing_POC 请善用搜索[Ctrl+F]查找 IOT Device&amp;Mobile Phone Web APP 提权辅助相关 PC tools-小工具集合 文章/书籍/教程相关 说明 请善用搜索[Ctrl+F]查找 IOT Device&amp;Mobile

Penetration_Testing_POC 搜集有关渗透测试中用到的POC、脚本、工具、文章等姿势分享,作为笔记吧,欢迎补充。 Penetration_Testing_POC 请善用搜索[Ctrl+F]查找 IOT Device&amp;Mobile Phone Web APP 提权辅助相关 PC tools-小工具集合 文章/书籍/教程相关 说明 请善用搜索[Ctrl+F]查找 IOT Device&amp;Mobile

PoC auto collect from GitHub.

PoC in GitHub 2020 CVE-2020-0022 In reassemble_and_dispatch of packet_fragmentercc, there is possible out of bounds write due to an incorrect bounds calculation This could lead to remote code execution over Bluetooth with no additional execution privileges needed User interaction is not needed for exploitationProduct: AndroidVersions: Android-80 Android-81 Android-9 Andr

Here is a collection about Proof of Concepts of Common Vulnerabilities and Exposures, and you may also want to check out current Contents CVE-2011-2856 CVE-2011-3243 CVE-2013-2618 CVE-2013-6632 CVE-2014-1701 CVE-2014-1705 CVE-2014-1747 CVE-2014-3176 CVE-2014-6332 CVE-2014-7927 CVE-2014-7928 CVE-2015-0072 CVE-2015-0235 CVE-2015-0240 CVE-2015-1233 CVE-2015-1242 CVE-2015-1268 CV

Awesome CVE PoC A curated list of CVE PoCs Here is a collection about Proof of Concepts of Common Vulnerabilities and Exposures, and you may also want to check out awesome-web-security Please read the contribution guidelines before contributing This repo is full of PoCs for CVEs If you enjoy this awesome list and would like to support it, check out my Patreon page :

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Ray‑Ban parent company reportedly suffers major ransomware attack
welivesecurity • 24 Sep 2020

Luxottica, the world’s leading eyewear producer, has allegedly fallen victim to a ransomware attack that affected its Italian and Chinese operations alike. The Italy-based eyewear giant – which boasts brands such as Ray-Ban, Oakley, and Persol in its portfolio as well as produces eyeglasses for fashion labels such as Burberry, Prada, Chanel, and Versace – appears to have been hit over the weekend.
Details of the alleged attack are not immediately clear, but according to BleepingCompu...

Ray-Ban owner Luxottica confirms ransomware attack, work disrupted
BleepingComputer • Lawrence Abrams • 22 Sep 2020

09/22 update is added below. This post was originally published on August, 21st, 2020.
Italy-based eyewear and eyecare giant Luxottica has reportedly suffered a cyberattack that has led to the shutdown of operations in Italy and China.



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Ray-Ban owner Luxottica reportedly hit with cyberattack
BleepingComputer • Lawrence Abrams • 21 Sep 2020

Italy-based eyewear and eyecare giant Luxottica has reportedly suffered a cyberattack that has led to the shutdown of operations in Italy and China.
Luxottica is the world's largest eyewear company that employs over 80,000 people and generated 9.4 billion in revenue for 2019.



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Feds Warn Nation-State Hackers are Actively Exploiting Unpatched Microsoft Exchange, F5, VPN Bugs
Threatpost • Lindsey O'Donnell • 14 Sep 2020

The U.S. government is warning that Chinese threat actors have successfully compromised several government and private sector entities in recent months, by exploiting vulnerabilities in F5 BIG-IP devices, Citrix and Pulse Secure VPNs and Microsoft Exchange servers.
Patches are currently available for all these flaws – and in some cases, have been available for over a year – however, the targeted organizations had not yet updated their systems, leaving them vulnerable to compromise, the...

Pioneer Kitten APT Sells Corporate Network Access
Threatpost • Elizabeth Montalbano • 01 Sep 2020

An APT group known as Pioneer Kitten, linked to Iran, has been spotted selling corporate-network credentials on hacker forums. The credentials would let other cybercriminal groups and APTs perform cyberespionage and other nefarious cyber-activity.
Pioneer Kitten is a hacker group that specializes in infiltrating corporate networks using open-source tools to compromise remote external services. Researchers observed an actor associated with the group advertising access to compromised network...

Iranian hackers are selling access to corporate networks
BleepingComputer • Sergiu Gatlan • 01 Sep 2020

An Iranian-backed hacker group has been observed while seeking to sell access to compromised corporate networks to other threat actors on underground forums and attempting to exploit F5 BIG-IP devices vulnerable to CVE-2020-5902 exploits.
The Iranian hackers have been active since at least 2017 and are being tracked as Pioneer Kitten by cyber-security firm Crowdstrike, as Fox Kitten [1, 2] by threat intelligence firm ClearSky, and as Parisite [1, 2] by ICS security firm Dragos.

MITRE shares this year's top 25 most dangerous software bugs
BleepingComputer • Sergiu Gatlan • 20 Aug 2020

Image: Glenn Carstens-Peters
MITRE today shared a list of the top 25 most common and dangerous weaknesses plaguing software during the last two previous years.



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Citrix Warns of Critical Flaws in XenMobile Server
Threatpost • Lindsey O'Donnell • 12 Aug 2020

Citrix is urging users to immediately patch a pair of critical flaws in its flagship mobile device management software. If exploited, the flaws could allow remote, unauthorized attackers to access domain account credentials – ultimately opening the door to a treasure trove of corporate data, including email and web applications.
The flaws exist in Citrix Endpoint Management (CEM), often referred to as XenMobile Server, which enables businesses to manage employees’ mobile devices and m...

FBI: Iranian hackers trying to exploit critical F5 BIG-IP flaw
BleepingComputer • Sergiu Gatlan • 08 Aug 2020

The FBI warns of Iranian hackers actively attempting to exploit an unauthenticated remote code execution flaw affecting F5 Big-IP application delivery controller (ADC) devices used by Fortune 500 firms, government agencies, and banks.
F5 Networks (F5) released security updates to fix the critical 10/10 CVSSv3 rating F5 Big-IP ADC vulnerability tracked as CVE-2020-5902 on July 3, 2020.



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Hackers Look to Steal COVID-19 Vaccine Research
Threatpost • Tara Seals • 16 Jul 2020

Threat actor known as APT29 has been hard at work attempting to pilfer COVID-19 vaccine research from academic and pharmaceutical research institutions in various countries around the world, including the U.S.
That’s according to a joint alert from the U.S. Department of Homeland Security (DHS), the U.K.’s National Cyber Security Centre (NCSC) and Canada’s Communications Security Establishment (CSE),  issued Thursday.
The 14-page advisory details the recent activity of Russi...

Russian hackers target COVID-19 vaccine research with custom malware
BleepingComputer • Ionut Ilascu • 16 Jul 2020

Hackers likely working for Russian intelligence services have been attacking organizations involved in the research and development of a vaccine against the new coronavirus.
The activity is ongoing, attributed to the APT29 threat group, also tracked as Cozy Bear, The Dukes, and Yttrium. Targets are in the government, healthcare, diplomatic, think-tank, and energy sectors.



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Citrix Bugs Allow Unauthenticated Code Injection, Data Theft
Threatpost • Tara Seals • 07 Jul 2020

Multiple vulnerabilities in the Citrix Application Delivery Controller (ADC) and Gateway would allow code injection, information disclosure and denial of service, the networking vendor announced Tuesday. Four of the bugs are exploitable by an unauthenticated, remote attacker.
The Citrix products  (formerly known as NetScaler ADC and Gateway) are used for application-aware traffic management and secure remote access, respectively, and are installed in at least 80,000 companies in 158 coun...

Threat Landscape Trends – Q1 2020
Symantec Threat Intelligence Blog • Critical Attack Discovery and Intelligence Team • 09 Jun 2020

A look at the cyber security trends from the first three months of 2020.

Posted: 9 Jun, 20203 Min ReadThreat Intelligence SubscribeThreat Landscape Trends – Q1 2020A look at the cyber security trends from the first three months of 2020.Towards the end of the first quarter of 2020, we took a look through telemetry from our vast range of data sources and selected some of the trends that stood out.

From COVID-19-themed malicious email and BEC scams to vulnerability exploits and IoT attacks, let’s take a q...

Business services giant Conduent hit by Maze Ransomware
BleepingComputer • Lawrence Abrams • 04 Jun 2020

The Maze Ransomware operators are claiming to have successfully attacked business services giant Conduent, where they stole unencrypted files and encrypted devices on their network.
Conduent is a New Jersey, USA based business services firm with 67,000 employees and a 2019 business revenue of $4.47 billion.
Today, Maze Ransomware posted a new entry to their data leak site that states that they breached the network for Conduent in May 2020.
When conducting an attack, the Maze ...

Business services giant Conduent allegedly hit by Maze Ransomware
BleepingComputer • Lawrence Abrams • 04 Jun 2020

The Maze Ransomware operators are claiming to have successfully attacked business services giant Conduent, where they stole unencrypted files and encrypted devices on their network.
Conduent is a New Jersey, USA based business services firm with 67,000 employees and a 2019 business revenue of $4.47 billion.
Today, Maze Ransomware posted a new entry to their data leak site that states that they breached the network for Conduent in May 2020.
When conducting an attack, the Maze ...

US govt shares list of most exploited vulnerabilities since 2016
BleepingComputer • Sergiu Gatlan • 12 May 2020

US Government cybersecurity agencies and specialists today have released a list of the top 10 routinely exploited security vulnerabilities between 2016 and 2019.
Cybersecurity and Infrastructure Security Agency (CISA), the Federal Bureau of Investigation (FBI), and the broader US Government issued the AA20-133A alert through the National Cyber Awareness System to make it easier for organizations from the public and private sector to prioritize patching in their environments.
"The...

Surprise surprise! Hostile states are hacking coronavirus vaccine research, warn UK and USA intelligence
The Register • Gareth Corfield • 05 May 2020

Just ask us if you need help, urge NCSC and CISA

Foreign state hackers are trying to brute-force their way into pharmaceutical and medical research agencies hunting for a COVID-19 vaccine, British and American infosec agencies are warning.
The National Cyber Security Centre (NCSC) and America’s Cybersecurity and Infrastructure Security Agency (CISA) cautioned of a “password spraying” campaign targeting healthcare and medical research organisations.
Hostile countries are also said to be abusing a specific Citrix vulnerability ...

Google: We've blocked 126 million COVID-19 phishing scams in the last week
The Register • Paul Kunert • 17 Apr 2020

240 million daily virus themed spams as 'bad actors' feed on people's fear

In the past week, some 18 million COVID-19 phishing emails were sent via Gmail to unsuspecting marks, according to Google.
"No matter the size of your business, IT teams are facing increased pressure to navigate the challenges of COVID-19," said Neil Kumaran, products manager for Gmail, and Sam Lugani, lead security PMM, G Suite and CP platform, today.
The pair said phishing is still the "most effective method" that scammers deploy to compromise accounts and grab data and resources f...

Chinese Hackers Exploit Cisco, Citrix Flaws in Massive Espionage Campaign
Threatpost • Lindsey O'Donnell • 25 Mar 2020

Researchers warn that APT41, a notorious China-linked threat group, has targeted more than 75 organizations worldwide in “one of the broadest campaigns by a Chinese cyber-espionage actor observed in recent years.”
Between Jan. 20 and March 11, researchers observed APT41 exploiting vulnerabilities in Citrix NetScaler/ADC, Cisco routers and Zoho ManageEngine Desktop Central as part of the widespread espionage campaign. Researchers said it’s unclear if APT41 attempted exploitation en ma...

Chinese Hackers Use Cisco, Citrix, Zoho Exploits In Targeted Attacks
BleepingComputer • Sergiu Gatlan • 25 Mar 2020

The Chinese state-sponsored group APT41 has been at the helm of a range of attacks that used recent exploits to target security flaws in Citrix, Cisco, and Zoho appliances and devices of entities from a multitude of industry sectors spanning the globe.
It is not known if the campaign that started in January 2020 was designed to take advantage of companies having to focus on setting up everything needed by their remote workers while in COVID-19 lockdown or quarantine but, as FireEye resea...

UK Fintech Firm Finastra Hit By Ransomware, Shuts Down Servers
BleepingComputer • Sergiu Gatlan • 20 Mar 2020

Finastra, a leading financial technology provider from the UK, announced that it had to take several servers offline following a ransomware attack detected earlier today.
The fintech company provides financial software and services to more than 9,000 customers of all sizes from 130 countries across the globe, including 90 of the top 100 banks globally.
Finastra also has over 10,000 employees working from 42 offices, including London, New York, and Toronto, and a $1.9 billion in re...

The Week in Ransomware - February 28th 2020 - Data Leaks Everywhere
BleepingComputer • Lawrence Abrams • 28 Feb 2020

Over the past two weeks, we continue to see small towns, fire departments, hospitals, and companies being attacked by ransomware.
As more ransomware operators adopt the technique of stealing data and publishing it on data leak sites, organizations face increased pressure to declare data breaches after a ransom attack.
More than ever, organizations need to tighten the security on their network to avoid compromise as ransomware attacks no longer just affect the attacked companies, but ...

DoppelPaymer Hacked Bretagne Télécom Using the Citrix ADC Flaw
BleepingComputer • Sergiu Gatlan • 26 Feb 2020

Cloud services provider Bretagne Télécom was hacked by the threat actors behind the DoppelPaymer Ransomware using an exploit that targeted servers unpatched against the CVE-2019-19781 vulnerability.
Bretagne Télécom is a privately held French cloud hosting and enterprise telecommunications company that provides telephony, Internet and networking, hosting, and cloud computing services to roughly 3,000 customers, operating around 10,000 managed servers.
In their case, it's a story ...

Good: IT admins scrambled to patch 80 per cent of public-facing Citrix boxes to close nightmare hijack hole
The Register • Shaun Nichols in San Francisco • 06 Feb 2020

Bad: The other 20 per cent are still wide open. Also bad: Some of those patched machines may have been hacked

Roughly a fifth of the public-facing Citrix devices vulnerable to the CVE-2019-19781 remote-hijacking flaw, aka Shitrix, remain unpatched and open to remote attack.
Positive Technologies today estimated that thousands of companies remain open to the takeover vulnerability in Citrix ADC and Gateway. A successful exploit would give hackers a foothold in a compromised network.
The infosec biz, whose researchers discovered and disclosed the vulnerability in December of last year, has bee...

The Week in Ransomware - January 31st 2020 - Taking it to The Courts
BleepingComputer • Lawrence Abrams • 31 Jan 2020

This week we saw victims continuing to use the legal system to target ransomware operators' assets and services as well as a new ransomware targeting vulnerabilities.
The most interesting news is how victims are utilizing the legal system to freeze or get injunctions against the assets and services used by ransomware operators. This was seen in the previous Southwire lawsuit against Maze and this week with a UK judge freezing the ransomware wallet for Bitpaymer.
Also of interest, we...

Ragnarok Ransomware Targets Citrix ADC, Disables Windows Defender
BleepingComputer • Lawrence Abrams • 28 Jan 2020

A new ransomware called Ragnarok has been detected being used in targeted attacks against unpatched Citrix ADC servers vulnerable to the CVE-2019-19781 exploit.
Last week, FireEye released a report about new attacks exploiting the now patched Citrix ADC vulnerability to install the new Raganarok Ransomware on vulnerable networks.
When attackers are able to compromise a Citrix ADC device, various scripts would be downloaded and executed that scan for Windows computers vulnerable to...

City of Potsdam Servers Offline Following Cyberattack
BleepingComputer • Sergiu Gatlan • 24 Jan 2020

The City of Potsdam severed the administration servers' Internet connection following a cyberattack that took place earlier this week. Emergency services including the city's fire department fully operational and payments are not affected.
Potsdam is the largest city and the capital of the German federal state of Brandenburg, bordering the German capital, Berlin.
The systems of the Brandenburg capital are still offline after the unauthorized access to the Potsdam administration's se...

Citrix Releases Final Patch as Ransomware Attacks Ramp Up
BleepingComputer • Sergiu Gatlan • 24 Jan 2020

Citrix released the final permanent fix for the actively exploited CVE-2019-19781 vulnerability, needed to secure all vulnerable Citrix Application Delivery Controller (ADC), Citrix Gateway, and Citrix SD-WAN WANOP appliances.
"Today, we released the permanent fix for Citrix Application Delivery Controller (ADC) version 10.5 to address the CVE-2019-19781 vulnerability," Citrix's CISO Fermin J. Serna says.
"We have now released permanent fixes for all supported versions of ADC, Gate...

The Week in Ransomware - January 24th 2020 - Duck for Cover!
BleepingComputer • Lawrence Abrams • 24 Jan 2020

Ransomware continues its onslaught against cities, the enterprise, and even houses of worship as threat actors attempt to encrypt as much as they can to earn big payouts.
The publishing of stolen data to get victims to pay has also been a theme this week, with both Maze and Sodinokibi releasing victims data for not paying.
We also saw a bunch of new variants being released into the wild, including the threat actors exploiting the Citrix ADC vulnerability to install the new Ragnarok ...

Still losing sleep over that awful Citrix bug? This scanner is here to help... you realize you've already been pwned
The Register • Shaun Nichols in San Francisco • 23 Jan 2020

Handy FireEye tool roots out indicators of compromise

Citrix and FireEye have released a new security tool to help admins find out if their servers have been hacked via the high-profile CVE-2019-19781 flaw that was disclosed in December but only patched on Monday.
The free application, shared under the Apache 2.0 open-source license, will scan devices for indications of compromise for the so-called "Shitrix" arbitrary code execution vulnerability in Citrix's Application Delivery Controller and Gateway products. The tool can be run on any Citr...

PoC Exploits Do More Good Than Harm: Threatpost Poll
Threatpost • Lindsey O'Donnell • 22 Jan 2020

When it comes to the release of proof-of-concept (PoC) exploits, more security experts agree that the positives outweigh the negatives, according to a recent and informal Threatpost poll.
Last week, Threatpost conducted a reader poll and almost 60 percent of 230 security pundits thought it was a “good idea” to publish PoC code for zero days. Up to 38 percent of respondents, meanwhile, argued it wasn’t a good idea.
The debate comes on the heels of PoC code being released last we...

Citrix Releases Scanner to Detect Hacked Citrix ADC Appliances
BleepingComputer • Sergiu Gatlan • 22 Jan 2020

Citrix released a free scanner for detecting compromised Citrix Application Delivery Controller (ADC), Citrix Gateway, and Citrix SD-WAN WANOP appliances by digging for indicators of compromise (IoC) collected in incident response engagements related to CVE-2019-19781 exploitation.
The tool was developed in collaboration with FireEye and it is designed to be used locally to scan their organizations Citrix instances, one appliance at a time, to get assessments of potential indications of co...

Citrix Accelerates Patch Rollout For Critical RCE Flaw
Threatpost • Lindsey O'Donnell • 21 Jan 2020

Citrix has quickened its rollout of patches for a critical vulnerability (CVE-2019-19781) in the Citrix Application Delivery Controller (ADC) and Citrix Gateway products, on the heels of recent proof-of-concept exploits and skyrocketing exploitation attempts.
Several versions of the products still remain unpatched – but they will be getting a patch sooner than they were slated to. While Citrix originally said some versions would get a patch Jan. 31, it has now also shortened that timefr...

As miscreants prey on thousands of vulnerable boxes, Citrix finally emits patches to fill in hijacking holes in Gateway and ADC
The Register • Gareth Corfield • 20 Jan 2020

SD-WAN WANOP will have to wait a few days, though

Citrix has rushed out official fixes for the well-publicised vuln in some of its server products after miscreants were seen deploying their own custom patches that left a backdoor open for later exploitation.
As previously reported, vulnerabilities in Citrix Application Delivery Encoder and Citrix Gateway could allow remote attackers to carry out unauthenticated code execution.
In other words, baddies not on your network could get into it and start running all kinds of malicious soft...

Citrix Patches CVE-2019-19781 Flaw in Citrix ADC 11.1 and 12.0
BleepingComputer • Sergiu Gatlan • 19 Jan 2020

Citrix released permanent fixes for the actively exploited CVE-2019-19781 vulnerability impacting Citrix Application Delivery Controller (ADC), Citrix Gateway, and Citrix SD-WAN WANOP appliances and allowing unauthenticated attackers to perform arbitrary code execution.
"Permanent fixes for ADC versions 11.1 and 12.0 are available as downloads here and here," Citrix's CISO Fermin J. Serna says in an update published today.
"These fixes also apply to Citrix ADC and Citrix Gateway ...

'Friendly' hackers are seemingly fixing the Citrix server hole – and leaving a nasty present behind
The Register • Shaun Nichols in San Francisco • 17 Jan 2020

Congratulations, you've won a secret backdoor

Hackers exploiting the high-profile Citrix CVE-2019-19781 flaw to compromise VPN gateways are now patching the servers to keep others out.
Researchers at FireEye report finding a hacking group (dubbed NOTROBIN) that has been bundling mitigation code for NetScaler servers with its exploits. In effect, the hackers exploit the flaw to get access to the server, kill any existing malware, set up their own backdoor, then block off the vulnerable code from future exploit attempts by mitigation.

'Friendly' hackers are seemingly fixing the Citrix server hole – and leaving a nasty present behind
The Register • Shaun Nichols in San Francisco • 17 Jan 2020

Congratulations, you've won a secret backdoor

Hackers exploiting the high-profile Citrix CVE-2019-19781 flaw to compromise VPN gateways are now patching the servers to keep others out.
Researchers at FireEye report finding a hacking group (dubbed NOTROBIN) that has been bundling mitigation code for NetScaler servers with its exploits. In effect, the hackers exploit the flaw to get access to the server, kill any existing malware, set up their own backdoor, then block off the vulnerable code from future exploit attempts by mitigation.

Hackers Are Securing Citrix Servers, Backdoor Them for Access
BleepingComputer • Sergiu Gatlan • 17 Jan 2020

An unknown threat actor is currently scanning for and securing vulnerable Citrix ADC servers against CVE-2019-19781 exploitation attempts, while also backdooring them for future access.
The actor deploys a payload dubbed NOTROBIN by FireEye researchers who discovered this campaign, an implant designed to clean the Citrix ADC appliances of malware strains known to target such devices and to mitigate the CVE-2019-19781 flaw to block subsequent exploitation efforts.
NOTROBIN also plants...

Bad news: Windows security cert SNAFU exploits are all over the web now. Also bad: Citrix gateway hole mitigations don't work for older kit
The Register • Shaun Nichols in San Francisco • 16 Jan 2020

Good news: There is none. Well, apart from you can at least fully patch the Microsoft blunder

Vid Easy-to-use exploits have emerged online for two high-profile security vulnerabilities, namely the Windows certificate spoofing bug and the Citrix VPN gateway hole. If you haven't taken mitigation steps by now, you're about to have a bad time.
While IT admins can use the proof-of-concept exploit code to check their own systems are secure, miscreants can use them to, in the case of Citrix, hijack remote systems, or in the case of Windows, masquerade malware as legit apps or potentially ...

Unpatched Citrix Flaw Now Has PoC Exploits
Threatpost • Lindsey O'Donnell • 13 Jan 2020

Proof-of-concept (PoC) exploit code has been released for an unpatched remote-code-execution vulnerability in the Citrix Application Delivery Controller (ADC) and Citrix Gateway products.
The vulnerability (CVE-2019-19781), which Threatpost reported on in December, already packs a double-punch in terms of severity: Researchers say it is extremely easy to exploit, and affects all supported versions of Citrix Gateway products and Citrix ADC, a purpose-built networking appliance meant to impr...

If you haven't shored up that Citrix hole, you were probably hacked over the weekend: Exploit code now available
The Register • Shaun Nichols in San Francisco • 13 Jan 2020

Plus: TikTok clocked, Honey in a sticky situation, Arm's PAN mechanisms sidestepped

Roundup Welcome to another Register security roundup. Here are a few stories that caught our eye.
Late last month Citrix disclosed a critical security hole (CVE-2019-19781) in both its Application Delivery Controller and Unified Gateway (formerly known as Netscaler ADC and Netscaler Gateway) offerings. Up to 80,000 systems were thought to be at risk, with some 25,000 instances found online over the weekend.
Those admins who haven't put mitigations in place by now will want to make su...

CISA Releases Test Tool for Citrix ADC CVE-2019-19781 Vulnerability
BleepingComputer • Sergiu Gatlan • 13 Jan 2020

DHS CISA released a public domain tool designed to help security staff to test if their organizations are vulnerable to ongoing attacks that might target the CVE-2019-19781 security flaw impacting the Citrix Application Delivery Controller (NetScaler ADC) and Citrix Gateway (NetScaler Gateway) products.
"The Cybersecurity and Infrastructure Security Agency (CISA) has released a utility that enables users and administrators to test whether their Citrix Application Delivery Controller (AD...

The Week in Ransomware - January 10th 2020 - Now Data Breaches
BleepingComputer • Lawrence Abrams • 11 Jan 2020

This week we have seen new ransomware operators targeting businesses, stolen data published, and the Sodinokibi Ransomware being confirmed as behind the Travelex cyber attack.
Ransomware operators targeting the enterprise and stealing data before encrypting computers is the new normal and businesses need to start changing how they react to these types of attacks.
Instead of hiding ransomware attacks, victims will need to be transparent, treat the attacks like data breaches, file g...

Citrix ADC CVE-2019-19781 Exploits Released, Fix Now!
BleepingComputer • Lawrence Abrams • 11 Jan 2020

Numerous working exploits for the Citrix ADC (NetScaler) CVE-2019-19781 vulnerability are finally here and have been publicly posted in numerous locations. There is no patch available for this vulnerability, but Citrix has provided mitigations, which should be applied now!
If successfully exploited, this vulnerability allows unauthenticated users to utilize directory traversal to perform arbitrary code execution.
Since late December, we have been reporting and security professionals...

Attackers Are Scanning for Vulnerable Citrix Servers, Secure Now
BleepingComputer • Sergiu Gatlan • 08 Jan 2020

Security researchers have observed ongoing scans for Citrix Application Delivery Controller (NetScaler ADC) and Citrix Gateway (NetScaler Gateway) servers vulnerable to attacks exploiting CVE-2019-19781 during the last week.
This vulnerability impacts multiple Citrix products and it could potentially expose the networks of over 80,000 firms to hacking attacks according to a Positive Technologies report from December.
As the security outfit said at the time, "at least 80,000 com...

Critical Citrix Bug Puts 80,000 Corporate LANs at Risk
Threatpost • Tara Seals • 26 Dec 2019

Digital workspace and enterprise networks vendor Citrix has announced a critical vulnerability in the Citrix Application Delivery Controller (ADC) and Citrix Gateway. If exploited, it could allow unauthenticated attackers to gain remote access to a company’s local network and carry out arbitrary code execution.
The Citrix products (formerly the NetScaler ADC and Gateway) are used for application-aware traffic management and secure remote access, respectively, and are installed in at leas...

Patch now: Published Citrix applications leave networks of 'potentially 80,000' firms at risk from attackers
The Register • Tim Anderson • 23 Dec 2019

Unauthorised users able to perform 'arbitrary code execution'

A critical vulnerability found in Citrix Application Delivery Controller and Citrix Gateway (formerly known as Netscaler ADC and Netscaler Gateway) means businesses with apps published using these technologies may be exposing their internal network to unauthorised access.
Citrix (NetScaler) ADC is a load balancer and monitoring tech, while Unified Gateway provides remote access to internal applications. This can include desktop applications as well as intranet or web applications. "Any app...

Critical Citrix Flaw May Expose Thousands of Firms to Attacks
BleepingComputer • Sergiu Gatlan • 23 Dec 2019

A newly discovered vulnerability impacting the Citrix Application Delivery Controller (NetScaler ADC) and the Citrix Gateway (NetScaler Gateway) could potentially expose the networks of over 80,000 firms to hacking attacks.
The vulnerability, currently tracked as CVE-2019-19781, could allow remote attackers with access to a company's internal network without requiring authentication. 
If successfully exploited, it leads to arbitrary code execution according to Positive Technologi...

Citrix fixes 11 flaws in ADC, Gateway, and SD-WAN WANOP appliances
BleepingComputer • Sergiu Gatlan • 01 Jan 1970

Citrix today patched a set of 11 vulnerabilities found to affect its Citrix ADC, Citrix Gateway, and Citrix SD-WAN WANOP (appliance models 4000-WO, 4100-WO, 5000-WO, and 5100-WO) networking products.
According to Citrix, these vulnerabilities are not related to CVE-2019-19781 remote code execution flaw the company patched in January 2020 and do not affect cloud versions of Citrix appliances.
The patches released today by Citrix fully resolve all the security issues, and customers...

The Register

The Doppelpaymer ransomware gang were behind the cyber-attack on a German hospital that led to one patient's death, according to local sources.
The Aachener Zeitung newspaper carried a report from the German Press Association (DPA) that Doppelpaymer's eponymous ransomware had been introduced to the University Hospital Düsseldorf's network through a vulnerable Citrix product.
That ransomware infection, activated last week, is said by local prosecutors to have led to the death of one ...

Nation-state hackers are targeting COVID-19 response orgs
BleepingComputer • Sergiu Gatlan • 01 Jan 1970

Organizations involved in international COVID-19 responses, healthcare, and essential services are actively targeted by government-backed hacking groups according to a joint advisory issued today by cyber-security agencies from the US and the UK.
Healthcare bodies, medical research organizations, pharmaceutical companies, academia, and local governments are some examples of organizations currently being targeted by state-backed hacking groups.
"APT actors frequently target organizati...

The Register

The US government says the Chinese government's hackers are preying on a host of high-profile security holes in enterprise IT equipment to infiltrate Uncle Sam's agencies and American businesses.
Yes, this sounds like something from the Department of the Bleeding Obvious – spies do spying on all sides, and all that – but what's interesting in this latest warning is the roll call of vulnerable products being targeted.
In a joint statement, the FBI and Homeland Security's Cybersecu...

The Register

The Doppelpaymer ransomware gang were behind the cyber-attack on a German hospital that allegedly led to one patient's death, according to local sources.
The Aachener Zeitung newspaper carried a report from the German Press Association (DPA) that Doppelpaymer's eponymous ransomware had been introduced to the University Hospital Düsseldorf's network through a vulnerable Citrix product.
That ransomware infection, activated last week, is said by local prosecutors to have led to the dea...

The Register

Where Chinese hackers exploit, Iranians aren’t far behind. So says the US Cybersecurity and Infrastructure Security Agency, which is warning that malicious persons from Iran are exploiting a slew of vulns in VPN products from Citrix, F5 Networks and Pulse Secure.
The warning mirrors one issued earlier this week for exactly the same vendors, except with China as the malevolent party instead of Iran.
“CISA and FBI are aware of a widespread campaign from an Iran-based malicious cybe...

Dutch Govt Suggests Turning Off Citrix ADC Devices, Mitigations May Fail
BleepingComputer • Ionut Ilascu • 01 Jan 1970

Mitigation recommendations for CVE-2019-19781, a currently unpatched critical flaw affecting Citrix Application Delivery Controller (ADC) and Citrix Gateway, do not have the expected effect on all product versions.
In an updated advisory today, the software company informs that it found a new product that is vulnerable to the same security issue and that the advised actions do not work on some versions of Citrix ADC.
Until patches become available, the company sticks to the original ...

The Register

Citrix has issued patches for 11 CVE-listed security vulnerabilities in its various networking products.
The bundle includes fixes for one code injection bug, three information disclosure flaws, three elevation of privilege bugs, two cross-site scripting vulnerabilities, one denial-of-service hole, and one authorization-bypass flaw.
Affected gear includes the Citrix Application Delivery Controller (ADC), Citrix Gateway, and Citrix SD-WAN WANOP. So far there have been no reports of an...

The Register

Vulnerabilities in Microsoft Windows, Office, and Windows Server, for which patches have been available for years, continue to be the favorite target for hackers looking to spread malware.
A list posted by US-CERT this week rattles off the 10 most oft-targeted security vulnerabilities during the past three years, and finds that, shock horror, for the most part, keeping up with patching will keep you safe.
Microsoft ranks highly in the list because its software is widely used, and pro...

Chinese malware used in attacks against Australian orgs
BleepingComputer • Ionut Ilascu • 01 Jan 1970

The Australian government released an advisory late last week about increased cyber activity from a state actor against networks belonging to its agencies and companies in the country.
Behind the attack is a “sophisticated” adversary that relies on slightly modified proof-of-concept exploit code for yesteryear vulnerabilities, the government says. An unofficial blame finger points to China.
Resilient adversary
The attacker targets public-facing infrastructure with remote co...

Patching the Citrix ADC Bug Doesn't Mean You Weren't Hacked
BleepingComputer • Ionut Ilascu • 01 Jan 1970

Citrix on Friday released the final patch for the critical vulnerability tracked as CVE-2019-19781 in its affected appliances. Many organizations are still at risk, though, as they continue to run Citrix servers without a fix or the advised mitigations.
This security flaw is as bad as it can be since it allows unauthenticated attackers to directly access a company’s local network from the internet and run code via directory traversal.
It affects the Citrix Application Delivery Cont...

Vulnerable perimeter devices: a huge attack surface
BleepingComputer • Ionut Ilascu • 01 Jan 1970

With the increase of critical gateway devices deployed to support off-premise work, companies across the world have to adapt to a new threat landscape where perimeter and remote access devices are now in the first line.
Companies lack visibility into the growing network of internet-connected services and devices that support the new work paradigm; and the avalanche of vulnerabilities reported for edge devices make tackling the new security challenge even more difficult.

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