CVE-2018-18435

Published: 21/03/2019 Updated: 03/10/2019

CVSS v2 Base Score: 7.2 | Impact Score: 10 | Exploitability Score: 3.9

CVSS v3 Base Score: 7.8 | Impact Score: 5.9 | Exploitability Score: 1.8

VMScore: 725

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

KioWare Server version 4.9.6 and older installs by default to "C:\kioware_com" with weak folder permissions granting any user full permission "Everyone: (F)" to the contents of the directory and it's sub-folders. In addition, the program installs a service called "KWSService" which runs as "Localsystem", this will allow any user to escalate privileges to "NT AUTHORITY\SYSTEM" by substituting the service's binary with a malicious one.

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# Exploit Title : KioWare Server Version 496 - Weak Folder Permissions Privilege Escalation # Date : 10/12/2018 # Exploit Author : Hashim Jawad - @ihack4falafel # Vendor Homepage : wwwkiowarecom/ # Tested on : Windows Server 2016 Standard (x64) # CVE : CVE-2018-18435 Description: ====== ...

KioWare Server version 496 suffers from a weak folder privilege escalation vulnerability ...

CWE-732 https://www.exploit-db.com/exploits/46093/http://packetstormsecurity.com/files/151031/KioWare-Server-4.9.6-Privilege-Escalation.html https://www.kioware.com/patch.aspx https://m.kioware.com/news/kioware-press-releases/kioware_server_security_patch_update https://github.com/active-labs/Advisories/blob/master/2019/ACTIVE-2019-002.md https://nvd.nist.gov https://www.exploit-db.com/exploits/46093

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CVE-2018-18435

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