Multiple vulnerabilities exist within the Cisco TelePresence Recording Server. This security advisory outlines details of the following vulnerabilities: Unauthenticated Java Servlet Access Common Gateway Interface (CGI) Command Injection Unauthenticated Arbitrary File Upload XML-Remote Procedure Call (RPC) Arbitrary File Overwrite Cisco Discovery Protocol Remote Code Execution Ad Hoc Recording Denial of Service Java Remote method Invocation (RMI) Denial of Service Unauthenticated XML-RPC Interface Duplicate Issue Identification in Other Cisco TelePresence Advisories The Unauthenticated Java Servlet Access vulnerability affects the Cisco TelePresence Multipoint Switch and Recording Server. The defect that is related to each component is covered in each associated advisory. The Cisco Bug IDs for these defects are as follows: Cisco TelePresence Multipoint Switch - CSCtf42008 Cisco TelePresence Recording Server - CSCtf42005 The Unauthenticated Arbitrary File Upload vulnerability affects the Cisco TelePresence Multipoint Switch and Recording server. The defect that is related to each component is covered in each associated advisory. The Cisco Bug IDs for these defects are as follows: Cisco TelePresence Multipoint Switch - CSCth61065 Cisco TelePresence Recording Server - CSCth85786 The Cisco Discovery Protocol Remote Code Execution vulnerability affects Cisco TelePresence endpoints, Manager, Multipoint Switch, and Recording Server. The defect that is related to each component is covered in each associated advisory. The Cisco Bug IDs for these defects are as follows: Cisco TelePresence endpoint devices - CSCtd75754 Cisco TelePresence Manager - CSCtd75761 Cisco TelePresence Multipoint Switch - CSCtd75766 Cisco TelePresence Recording Server - CSCtd75769 The Java RMI Denial of Service vulnerability affects the Cisco TelePresence Multipoint Switch and Recording Server. The defect that is related to each component is covered in each associated advisory. The Cisco Bug IDs for these defects are as follows: Cisco TelePresence Multipoint Switch - CSCtg35825 Cisco TelePresence Recording Server - CSCtg35830 This advisory is posted at http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20110223-telepresence-ctrs.
Multiple vulnerabilities exist within the Cisco TelePresence Recording Server. This security advisory outlines details of the following vulnerabilities:
The Unauthenticated Java Servlet Access vulnerability affects the Cisco TelePresence Multipoint Switch and Recording Server. The defect that is related to each component is covered in each associated advisory. The Cisco Bug IDs for these defects are as follows:
The Unauthenticated Arbitrary File Upload vulnerability affects the Cisco TelePresence Multipoint Switch and Recording server. The defect that is related to each component is covered in each associated advisory. The Cisco Bug IDs for these defects are as follows:
The Cisco Discovery Protocol Remote Code Execution vulnerability affects Cisco TelePresence endpoints, Manager, Multipoint Switch, and Recording Server. The defect that is related to each component is covered in each associated advisory. The Cisco Bug IDs for these defects are as follows:
The Java RMI Denial of Service vulnerability affects the Cisco TelePresence Multipoint Switch and Recording Server. The defect that is related to each component is covered in each associated advisory. The Cisco Bug IDs for these defects are as follows:
This advisory is posted at http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20110223-telepresence-ctrs.
These vulnerabilities affect the Cisco TelePresence Recording Server. All releases of Cisco TelePresence software prior to 1.7.1 are affected by one or more of the vulnerabilities listed in this advisory.
The following table provides information that pertains to affected software releases:
|
Description |
Cisco Bug ID |
Affected Software Releases |
|---|---|---|
|
Unauthenticated Java Servlet Access |
CSCtf42005 |
1.6.x |
|
CGI Command Injection |
CSCtf97221 |
1.6.x |
|
Unauthenticated Arbitrary File Upload |
CSCth85786 |
1.6.x |
|
XML-RPC Arbitrary File Overwrite |
CSCti50739 |
1.6.x, 1.7.0 |
|
Cisco Discovery Protocol Remote Code Execution |
CSCtd75769 |
1.6.x |
|
Ad Hoc Recording Denial of Service |
CSCtf97205 |
1.6.x |
|
Java RMI Denial of Service |
CSCtg35830 |
1.6.x |
|
Unauthenticated XML-RPC Interface |
CSCtg35833 |
1.6.x |
Cisco TelePresence Recording Server devices that are running an affected version of software are affected.
To determine the current version of software that is running on the Cisco TelePresence Recording Server, access the device via SSH and issue the show version active and the show version inactive commands. The output should resemble the following example:
admin: show version active Active Master Version: 1.7.0.0-151 Active Version Installed Software Options: No Installed Software Options Found. admin: show version inactive Inactive Master Version: 1.6.2.0-237 Inactive Version Installed Software Options: No Installed Software Options Found.
In the preceding example, the system has versions 1.6.2 and 1.7.0 loaded on the device and version 1.7.0 is currently active. A device is affected only by vulnerabilities that are present in the active software version.
No other Cisco products are currently known to be affected by these vulnerabilities.
The Cisco TelePresence solution allows for immersive, in-person communication and collaboration over the network with colleagues, prospects, and partners even when they are located in opposite hemispheres.
This security advisory describes multiple distinct vulnerabilities in the Cisco TelePresence Recording Server. These vulnerabilities are independent of each other.
A number of sensitive Java Servlets delivered via a Java Servlet framework within the Cisco TelePresence Recording Server could allow a remote, unauthenticated attacker to perform actions that should be restricted to administrative users. To successfully exploit this vulnerability, the attacker would need the ability to submit a crafted request to an affected device on TCP port 80, TCP port 443, or TCP port 8080.
An attacker must perform a three-way TCP handshake and establish a valid session to exploit these vulnerabilities.
A CGI command injection vulnerability exists within the Cisco TelePresence Recording Server that could allow a remote, unauthenticated attacker to execute arbitrary commands with elevated privileges. To successfully exploit this vulnerability the attacker would need the ability to submit a malformed request to an affected device via TCP port 443.
An attacker must perform a three-way TCP handshake and establish a valid session to exploit these vulnerabilities.
An arbitrary file upload vulnerability exists within the administrative web interface of the Cisco TelePresence Recording Server. An unauthenticated, remote attacker could place content to arbitrary locations on the device by submitting crafted requests to the affected device. To successfully exploit this vulnerability the attacker would need the ability to submit a crafted request to an affected device on TCP port 80 or 443.
An attacker must perform a three-way TCP handshake and establish a valid session to exploit this vulnerability.
An arbitrary file overwrite vulnerability exists within Cisco TelePresence Recording Server devices that could allow an unauthenticated, remote attacker to overwrite arbitrary files with logging data. This vulnerability could be leveraged to obtain full control of the affected device. To successfully exploit this vulnerability the attacker would need the ability to submit a malformed request to an affected device via TCP port 12102 or 12104.
An attacker must perform a three-way TCP handshake and establish a valid session to exploit this vulnerability.
A remote code execution vulnerability exists within Cisco TelePresence Recording Server devices. This vulnerability could allow an unauthenticated, adjacent attacker to trigger a buffer overflow condition. To exploit this vulnerability, the attacker must submit a malicious Cisco Discovery Protocol packet to the affected system.
Because Cisco Discovery Protocol works at the data-link layer (Layer 2), an attacker must have a way to submit an Ethernet frame directly to an affected device. This may be possible in situations where the affected system is part of a bridged network or connected to a nonpartitioned device such as a network hub.
A denial of service vulnerability exists within Cisco TelePresence Recording Server devices. The vulnerability could allow an unauthenticated, remote attacker to cause all recording and playback threads on the device to be consumed. A restart of the affected device may be required to regain functionality. To successfully exploit this vulnerability the attacker would need the ability to submit a malformed request to an affected device via TCP port 80.
An attacker must perform a three-way TCP handshake and establish a valid session to exploit this vulnerability.
A denial of service vulnerability exists within Cisco TelePresence Recording Server devices due to a failure to properly restrict access to the RMI interface of the Java Servlet framework. An unauthenticated, remote attacker could trigger an out-of-memory condition on the Servlet host by issuing a series of crafted requests. To successfully exploit this vulnerability the attacker would need the ability to communicate to an affected device on TCP port 8999.
An attacker must perform a three-way TCP handshake and establish a valid session to exploit this vulnerability.
An unauthenticated XML-RPC interface exists within Cisco TelePresence Recording Server devices. This vulnerability could allow an unauthenticated, remote attacker to perform a limited number of actions on the system that should be restricted to authorized users. To successfully exploit this vulnerability the attacker would need the ability to communicate to an affected device on TCP port 8080.
An attacker must perform a three-way TCP handshake and establish a valid session to exploit this vulnerability.
There are no device- or system-based workarounds for the identified vulnerabilities.
Additional mitigations that can be deployed on Cisco devices within the network are available in the Cisco Applied Intelligence companion document for this advisory: http://tools.cisco.com/security/center/content/CiscoAppliedMitigationBulletin/cisco-amb-20110223-telepresence
When considering software upgrades, also consult http://www.cisco.com/go/psirt and any subsequent advisories to determine exposure and a complete upgrade solution.
In all cases, customers should exercise caution to be certain the devices to be upgraded contain sufficient memory and that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, contact the Cisco Technical Assistance Center (TAC) or your contracted maintenance provider for assistance.
Each row of the following Cisco TelePresence System Software table defines a specific defect, the first fixed release, and the recommended release to resolve all the security issues identified in this advisory as well as other non-security-related issues. Cisco recommends upgrading to a release equal to or later than the release in the Recommended Release column of the table.
|
Vulnerability |
Bug ID |
Component |
First Fixed Version |
Recommended Release |
|---|---|---|---|---|
|
Unauthenticated Java Servlet Access |
CSCtf42005 |
Cisco TelePresence Recording Server |
1.6.2 |
1.7.1 |
|
CGI Command Injection |
CSCtf97221 |
Cisco TelePresence Recording Server |
1.6.2 |
1.7.1 |
|
Unauthenticated Arbitrary File Upload |
CSCth85786 |
Cisco TelePresence Recording Server |
1.7.0 |
1.7.1 |
|
XML-RPC Arbitrary File Overwrite |
CSCti50739 |
Cisco TelePresence Recording Server |
1.7.1 |
1.7.1 |
|
Cisco Discovery Protocol Remote Code Execution |
CSCtd75769 |
Cisco TelePresence Recording Server |
1.7.0 |
1.7.1 |
|
Ad Hoc Recording Denial of Service |
CSCtf97205 |
Cisco TelePresence Recording Server |
1.7.0 |
1.7.1 |
|
Java RMI Denial of Service |
CSCtg35830 |
Cisco TelePresence Recording Server |
1.7.0 |
1.7.1 |
|
Unauthenticated XML-RPC Interface |
CSCtg35833 |
Cisco TelePresence Recording Server |
1.7.0 |
1.7.1 |
Cisco recommends that customers upgrade all components of the Cisco TelePresence solution to 1.7.1 or later.
The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities described in this advisory.
All vulnerabilities identified within this Security Advisory were discovered internally by Cisco.
To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
|
Revision 1.0 |
2011-February-23 |
Initial public release |
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