Summary

• Multiple vulnerabilities exist in the Cisco TelePresence Manager. This security advisory outlines the details of the following vulnerabilities:

  • Simple Object Access Protocol (SOAP) Authentication Bypass
    
  • Java Remote Method Invocation (RMI) Command Injection
    
  • Cisco Discovery Protocol Remote Code Execution
    

  Duplicate Issue Identification in Other Cisco TelePresence Advisories

  The Cisco Discovery Protocol remote code execution vulnerability affects Cisco TelePresence endpoints, Manager, Multipoint Switch, and Recording Server. The details about how the defect relates to each component are 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
    

  This advisory is posted at https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20110223-telepresence-ctsman.

Affected Products

• These vulnerabilities affect the Cisco TelePresence Manager. Releases of Cisco TelePresence Manager software prior to 1.7.0 may be affected by one or more of the vulnerabilities listed in this advisory.

  The following table provides information pertaining to affected software releases:

  Description	Cisco Bug ID	Affected Software Releases
  SOAP Authentication Bypass	CSCtc59562	1.2.x, 1.3.x, 1.4.x, 1.5.x, 1.6.x
  Java RMI Command Injection	CSCtf9085	1.2.x, 1.3.x, 1.4.x, 1.5.x, 1.6.x
  Cisco Discovery Protocol Remote Code Execution	CSCtd75761	1.2.x, 1.3.x, 1.4.x, 1.5.x, 1.6.2

  Vulnerable Products

  Cisco TelePresence Manager 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 Manager, 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

• 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 Manager. These vulnerabilities are independent of each other.

  SOAP Authentication Bypass

  An authentication bypass vulnerability exists that could allow a remote, unauthenticated attacker to invoke arbitrary methods that are available via the SOAP interface on the Cisco TelePresence Manager. The attacker would need the ability to submit a malformed SOAP request that is designed to trigger the vulnerability to the affected device on TCP port 8080 or 8443.

  An attacker must perform a three-way TCP handshake and establish a valid session to exploit this vulnerability.

  • Cisco TelePresence Manager: CSCtc59562 ( registered customers only) has been assigned the Common Vulnerabilities and Exposures (CVE) identifier CVE-2011-0380.
    

  Java RMI Command Injection

  A command injection vulnerability exists in the Java RMI interface that is exposed on the Cisco TelePresence Manager. The vulnerability could allow an unauthenticated, remote attacker to perform a number of actions on the device with elevated privileges. The attacker would need to be able to submit a crafted request to the affected device on TCP port 1100 or 32000.

  An attacker must perform a three-way TCP handshake and establish a valid session to exploit these vulnerabilities.

  • Cisco TelePresence Manager: CSCtf97085 ( registered customers only) has been assigned the CVE identifier CVE-2011-0381.
    

  Cisco Discovery Protocol Remote Code Execution

  A remote code execution vulnerability exists in Cisco TelePresence Manager devices. This vulnerability could allow an unauthenticated, adjacent attacker to trigger a buffer overflow condition. The attacker would need the ability to submit a malicious Cisco Discovery Protocol packet to the affected system to exploit this vulnerability.

  Because Cisco Discovery Protocol operates at Layer 2, an attacker must have a way to submit an Ethernet frame directly to an affected device. This submission may be possible in situations in which the affected system is part of a bridged network or connected to a nonpartitioned device, such as a network hub.

  • Cisco TelePresence Manager: CSCtd75761 ( registered customers only) has been assigned the CVE identifier CVE-2011-0379.
    

Workarounds

• There are no known device-based or system-based workarounds for the identified vulnerabilities.

  Additional mitigations that can be deployed on Cisco devices in the network are available in the Cisco Applied Intelligence companion document for this advisory: https://sec.cloudapps.cisco.com/security/center/content/CiscoAppliedMitigationBulletin/cisco-amb-20110223-telepresence

Fixed Software

• 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 vulnerabilities identified in this advisory as well as other vulnerabilities that are not security related. Cisco recommends upgrading to a release equal to or later than the release in the Recommended Releases column of the table.

  Vulnerability	Bug ID	Component	First Fixed Version	Recommended Release
  SOAP Authentication Bypass	CSCtc59562	Cisco TelePresence Manager	1.7.0	1.7.1
  Java RMI Command Injection	CSCtf97085	Cisco TelePresence Manager	1.7.0	1.7.1
  Cisco Discovery Protocol Remote Code Execution	CSCtd75761	Cisco TelePresence Manager	1.7.0	1.7.1

  It is recommended that all components of the Cisco TelePresence solution be upgraded to release 1.7.1 or greater.

Exploitation and Public Announcements

• The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities described in this advisory.

  All vulnerabilities identified in this security advisory were discovered internally by Cisco.

URL

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20110223-telepresence-ctsman

Revision History

• Revision 1.0

  2011-February-23

  Initial public release.

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