Multiple Vulnerabilities in Cisco TelePresence Immersive Endpoint Devices

Summary

• Cisco TelePresence Endpoint devices contain the following vulnerabilities:

  • Cisco TelePresence API Remote Command Execution Vulnerability
  • Cisco TelePresence Remote Command Execution Vulnerability
  • Cisco TelePresence Cisco Discovery Protocol Remote Code Execution Vulnerability

  Exploitation of the API Remote Command Execution vulnerability could allow an unauthenticated, adjacent attacker to inject commands into API requests. The injected commands will be executed by the underlying operating system in an elevated context.
  
  Exploitation of the Remote Command Execution vulnerability could allow an authenticated, remote attacker to inject commands into requests made to the Administrative Web interface. The injected commands will be executed by the underlying operating system in an elevated context.
  
  
  Exploitation of the Cisco TelePresence Cisco Discovery Protocol Remote Code Execution Vulnerability may allow an unauthenticated, adjacent attacker to execute arbitrary code with elevated privileges.
  
  Cisco has released software updates that address these vulnerabilities.
  There are no workarounds that mitigate these vulnerabilities.
  
  This advisory is available at the following link:
  http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120711-cts
  
  

Affected Products

• Enter product information here.

  Vulnerable Products

  Cisco TelePresence Manager, Cisco TelePresence Recording Server, Cisco TelePresence Multipoint Switch, and Cisco TelePresence Immersive Endpoint System may be affected by the vulnerabilities that are described in this security advisory. The following tables contain specific information for each vulnerability.
  
  Cisco TelePresence API Remote Command Injection Vulnerability
  
  

  Product	Affected
  Cisco TelePresence Manager	NO
  Cisco TelePresence Recording Server	NO
  Cisco TelePresence Multipoint Switch	NO
  Cisco TelePresence Immersive Endpoint System	YES

  
  Cisco TelePresence Remote Command Injection Vulnerability
  
  

  Product	Affected
  Cisco TelePresence Manager	NO
  Cisco TelePresence Recording Server	NO
  Cisco TelePresence Multipoint Switch	NO
  Cisco TelePresence Immersive Endpoint System	YES

  
  Cisco TelePresence Cisco Discovery Protocol Remote Code Execution Vulnerability
  
  

  Product	Affected
  Cisco TelePresence Manager	YES
  Cisco TelePresence Recording Server	YES
  Cisco TelePresence Multipoint Switch	YES
  Cisco TelePresence Immersive Endpoint System	YES

  
  
  

  Detailed Information about Vulnerable Product

  This security advisory is describing the vulnerabilities for the Cisco TelePresence Endpoint devices. For additional information regarding how the vulnerabilities affect other vulnerable products please refer to the specific product security advisory document following the link in the table below:
  
  

  Product	Security Advisory Publication Link
  Cisco TelePresence Multipoint Switch	http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120711-ctms
  Cisco TelePresence Manager	http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120711-ctsman
  Cisco TelePresence Recording Server	http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120711-ctrs

  
  

  How To Determine The Software Version

  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 Cisco TelePresence Endpoint Systems, establish an SSH connection to the device 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: 1.7.0.0-471
  
  Active Version Installed Software Options: 
  No Installed Software Options Found.
  
  admin: show version inactive
  Inactive Master Version: 1.6.0.0-342
  
  Inactive Version Installed Software Options: 
  No Installed Software Options Found.

  In the preceding example, the system has versions 1.6.0 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 in the active software version.

  
  

  Products Confirmed Not Vulnerable

  No other Cisco products are currently known to be affected by these vulnerabilities.

Details

• Cisco TelePresence Endpoint devices provide an immersive remote presence experience.
  
  
  This section gives additional information for each of the vulnerabilities affecting Cisco TelePresence Immersive Endpoint Devices.
  
  Cisco TelePresence API Remote Command Execution Vulnerability
  
  A remote command injection vulnerability exists in one of the Cisco TelePresence APIs that are hosted on the immersive endpoint devices. This issue if exploited could allow an unauthenticated attacker in an adjacent context to execute arbitrary commands on the underlying operating system with elevated privileges.
  
  An attacker must have the ability to submit a malformed request to TCP port 61460 from a physical or logical Layer 3 adjacent context. A three-way handshake is required to exploit this vulnerability.
  
  This vulnerability is documented in Cisco bug ID CSCtz38382 (registered customers only) and has been assigned Common Vulnerabilities and Exposures (CVE) ID CVE-2012-3074.
  
  Cisco TelePresence Remote Command Execution Vulnerability
  
  A remote command injection vulnerability exists in the Cisco TelePresence administrative web interface that is hosted on the immersive endpoint devices. If exploited, this issue could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system with elevated privileges.
  
  An attacker must have the ability to submit a malformed request to TCP port 443. A three-way handshake is required to exploit this vulnerability.
  
  This vulnerability is documented in Cisco bug ID CSCtn99724 (registered customers only) and has been assigned Common Vulnerabilities and Exposures (CVE) ID CVE-2012-3075.
  
  
  Cisco TelePresence Cisco Discovery Protocol Remote Code Execution Vulnerability
  
  A remote code execution vulnerability in the implementation of the Cisco Discovery Protocol component could allow an unauthenticated, adjacent attacker to execute arbitrary code with elevated privileges. The vulnerability is due to a failure to properly handle malformed Cisco Discovery Protocol packets. An attacker could exploit this vulnerability by passing malformed Cisco Discovery Protocol packets to an affected device. Successful exploitation of this vulnerability could allow the attacker to execute arbitrary code with elevated privileges.
  
  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 action may be possible in situations where the affected system is part of a bridged network or connected to a non partitioned device, such as a network hub.
  
  
  This vulnerability is documented in Cisco bug ID CSCtz40953 (registered customers only) and has been assigned Common Vulnerabilities and Exposures (CVE) ID CVE-2012-2486.
  

Workarounds

• There are no workarounds that mitigate these vulnerabilities.

Fixed Software

• This section gives details about affected releases and remediation for each of the vulnerabilities affecting Cisco TelePresence Immersive Endpoint Systems.
  
  Cisco TelePresence API Remote Command Execution Vulnerability

  Version	First Fixed Release
  Prior to 1.6	1.8.4 or 1.9.1
  1.6	1.8.4 or 1.9.1
  1.7	1.8.4 or 1.9.1
  1.8	1.8.4 or 1.9.1

  
  
  Cisco TelePresence Remote Command Execution Vulnerability
  
  

  Version	First Fixed Release
  Prior to 1.6	1.7.4
  1.6	1.7.4
  1.7	1.7.4
  1.7.4 and later	Not affected
  1.8	Not affected

  
  Cisco TelePresence Cisco Discovery Protocol Remote Code Execution Vulnerability

  Version	First Fixed Release
  Prior to 1.6	1.8.4 or 1.9.1
  1.6	1.8.4 or 1.9.1
  1.7	1.8.4 or 1.9.1
  1.8	1.8.4 or 1.9.1

  Recommended Releases
  
  The following table gives information about the releases that contains the fixes for all the vulnerabilities described in this security advisory:

  Version	Release
  Prior to 1.6	Upgrade to 1.9.1 or later
  1.6	Upgrade to 1.9.1 or later
  1.7	Upgrade to 1.9.1 or later
  1.8	Upgrade to 1.8.4 or upgrade to 1.9.1 or later

  When considering software upgrades, customers are advised to consult the Cisco Security Advisories and Responses archive at http://www.cisco.com/go/psirt and review subsequent advisories to determine exposure and a complete upgrade solution.

  In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.

Exploitation and Public Announcements

• The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.

  These vulnerabilities were discovered during an internal security audit of the Cisco TelePresence Endpoints.

URL

• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120711-cts

Revision History

• Revision 1.1	2012-September-24	Cisco has released software version 1.8.4, which remediates the following CVEs in the 1.8.x Train:CVE-2012-2486, CVE-2012-3074, and CVE-2012-3075
  Revision 1.0	2012-July-11	Initial public release.

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