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Cisco Security Advisory

Multiple Vulnerabilities in Cisco Unified MeetingPlace Solution

Advisory ID: cisco-sa-20130410-mp

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130410-mp

Revision 1.0

For Public Release 2013 April 10 16:00  UTC (GMT)

Related Resources:


Summary

Cisco Unified MeetingPlace Application Server contains an authentication bypass vulnerability and Cisco Unified MeetingPlace Web Conferencing Server contains an arbitrary login vulnerability. For both vulnerabilities, successful exploitation could allow an unauthenticated, remote attacker to impersonate a legitimate user and send arbitrary commands to the affected system with the privileges of that user.

Cisco has released free software updates that address these vulnerabilities. A workaround is available for the Cisco Unified MeetingPlace Web Conferencing Server Arbitrary Login Vulnerability. This advisory is available at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130410-mp

Affected Products

Vulnerable Products

The following versions of Cisco Unified MeetingPlace Application Server software are affected by the Cisco Unified MeetingPlace Application Server Authentication Bypass Vulnerability:

Cisco Unified MeetingPlace Application Server Version Affected
Prior to 7.0 No
7.0 Yes
7.1 Yes
8.0 Yes
8.5 Yes

Cisco Unified MeetingPlace Application Server is not affected by the Cisco Unified MeetingPlace Web Conferencing Server Arbitrary Login Vulnerability.


The following versions of Cisco Unified MeetingPlace Web Conferencing Server software are affected by the Cisco Unified MeetingPlace Web Conferencing Server Arbitrary Login Vulnerability:

Cisco Unified MeetingPlace Web Conferencing Server Version Affected
Prior to 7.0 No
7.0 Yes
7.1 Yes
8.0 Yes
8.5 Yes

Cisco Unified MeetingPlace Web Conferencing Server is affected by this vulnerability only if the Remember Me authentication option is enabled. To determine whether the option is enabled, navigate to Home > Administration > Web Server. If the value of Allow Remember Me under Web Server Customization Values section is set to Yes, then the Remember Me option is enabled and the system is vulnerable.

The Remember Me authentication option is enabled by default.

Cisco Unified MeetingPlace Web Conferencing Server is not affected by the Cisco Unified MeetingPlace Application Server Authentication Bypass Vulnerability.


Note: Cisco Unified MeetingPlace Application Server and Cisco Unified MeetingPlace Web Conferencing Server software versions prior to 7.0 reached end of software maintenance. Customers with devices running versions prior to 7.0 should contact their Cisco support team for assistance in upgrading to a supported version.


Information about Cisco Unified MeetingPlace Express

Cisco Unified MeetingPlace Express is affected by the Cisco Unified MeetingPlace Application Server Authentication Bypass Vulnerability.
Cisco Unified MeetingPlace Express reached end of software maintenance. Customers should contact their Cisco support team for available replacement.

Products Confirmed Not Vulnerable

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

Details

Cisco Unified MeetingPlace is an on-premises conferencing solution that allows organizations to host integrated voice, video, and web conferencing. The solution is integrated directly into an organization's private voice/data networks and enterprise applications. Cisco Unified MeetingPlace servers can be deployed so that the server is accessible from the Internet, allowing external parties to participate in meetings.

Cisco Unified MeetingPlace Application Server is the core of the Cisco Unified MeetingPlace solution and provides voice and video services, and general support to other components of the solution. Cisco Unified MeetingPlace Web Conferencing Server is a component of the Cisco Unified MeetingPlace solution that allows users to manage meetings and share applications and presentations.

Cisco Unified MeetingPlace Application Server Authentication Bypass Vulnerability

A vulnerability in the authentication code of the webserver component of Cisco Unified MeetingPlace Application Server could allow an unauthenticated, remote attacker to take over a user session after the user has logged out from the affected system.
The vulnerability is due to the affected system not invalidating a user's session when the user logs out. An attacker could exploit this vulnerability by crafting an HTTP GET or POST request and sending it to the affected system. To succeed, the attacker must know the session cookie value from a user that has previously logged out. The Cisco Unified MeetingPlace Application Server will automatically invalidate the session cookie after 30 minutes; therefore the attacker has 30 minutes to perform attack.  An exploit could allow the attacker to impersonate a legitimate user and compromise the confidentiality, integrity and availability of the affected system with the privileges of that user.

This vulnerability is documented in Cisco bug ID CSCuc64885 (registered customers only) and has been assigned Common Vulnerabilities and Exposures (CVE) ID CVE-2013-1168.

Cisco Unified MeetingPlace Web Conferencing Server Arbitrary Login Vulnerability

A vulnerability in the authentication code of the Cisco Unified MeetingPlace Web Conferencing Server could allow an unauthenticated, remote attacker to impersonate a legitimate user and issue arbitrary commands to the affected system.
The vulnerability is due to insufficient verification of the user cookies when the Remember Me option is configured on the affected system. An attacker could exploit this vulnerability by crafting a login request and send it to the affected system. The attacker must know a valid user name to execute the attack. An exploit could allow the attacker to impersonate a legitimate user and compromise the confidentiality, integrity and availability of the affected system with the privileges of that user.

Note: this vulnerability affects only Cisco Unified MeetingPlace Web Conferencing servers that are configured with the Remember Me option. Microsoft Outlook Integration is using the Cisco Unified MeetingPlace Application Server for authentication services, and it is not affected by this vulnerability.

This vulnerability is documented in Cisco bug ID CSCuc64846 (registered customers only) and has been assigned Common Vulnerabilities and Exposures (CVE) ID CVE-2013-1169.

Vulnerability Scoring Details

Cisco has scored the vulnerabilities in this advisory based on the Common Vulnerability Scoring System (CVSS). The CVSS scoring in this security advisory is in accordance with CVSS version 2.0.

CVSS is a standards-based scoring method that conveys vulnerability severity and helps organizations determine the urgency and priority of a response.

Cisco has provided a base and temporal score. Customers can also compute environmental scores that help determine the impact of the vulnerability in their own networks.

Cisco has provided additional information regarding CVSS at the following link:

http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html

Cisco has also provided a CVSS calculator to compute the environmental impact for individual networks at the following link:

http://intellishield.cisco.com/security/alertmanager/cvss



CSCuc64885 - Cisco Unified MeetingPlace Application Server Authentication Bypass Vulnerability

Calculate the environmental score of CSCuc64885

CVSS Base Score - 7.6

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

High

None

Complete

Complete

Complete

CVSS Temporal Score - 6.3

Exploitability

Remediation Level

Report Confidence

Functional

Official-Fix

Confirmed




CSCuc64846 - Cisco Unified MeetingPlace Web Conferencing Server Arbitrary Login Vulnerability

Calculate the environmental score of CSCuc64846

CVSS Base Score - 9.3

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Medium

None

Complete

Complete

Complete

CVSS Temporal Score - 7.7

Exploitability

Remediation Level

Report Confidence

Functional

Official-Fix

Confirmed


Impact

Successful exploitation of these vulnerabilities may allow the attacker to impersonate a legitimate user and send arbitrary commands to the affected system with the privileges of that user.

Software Versions and Fixes

Cisco has released free software updates that address these vulnerabilities.

Cisco Unified MeetingPlace Application Server Authentication Bypass Vulnerability

The following table contains information about the Cisco Unified MeetingPlace Application Server software releases that fix the Cisco Unified MeetingPlace Application Server Authentication Bypass Vulnerability:

Cisco Unified MeetingPlace Application Server Major Release

Cisco Unified MeetingPlace Application Server Fixed Release

7.0 Migrate to 7.1MR1 Patch 2
7.1 7.1MR1 Patch 2
8.0
8.0MR1 Patch 1
8.5 8.5MR3 Patch 1


Cisco Unified MeetingPlace Web Conferencing Server Arbitrary Login Vulnerability

The following table contains information about the Cisco Unified MeetingPlace Application Server software releases that fix the Cisco Unified MeetingPlace Web Conferencing Server Arbitrary Login Vulnerability:

Cisco Unified MeetingPlace Web Conferencing Server Major Release

Cisco Unified MeetingPlace Web Conferencing Server Fixed Release

7.0 Migrate to 7.1MR1 Patch 2
7.1 7.1MR1 Patch 2
8.0
8.0MR1 Patch 2
8.5 8.5MR3 Patch 1

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.


Workarounds

There are no workarounds that mitigate the Cisco Unified MeetingPlace Application Server Authentication Bypass Vulnerability.

Disabling the Remember Me authentication option mitigates the Cisco Unified MeetingPlace Web Conferencing Server Arbitrary Login Vulnerability.
To disable the Remember Me authentication option, navigate to Home > Administration > Web Server and under Web Server Customization Values section set Allow Remember Me value to No.

Obtaining Fixed Software

Cisco has released free software updates that address the vulnerability described in this advisory. Prior to deploying software, customers are advised to consult their maintenance providers or check the software for feature set compatibility and known issues that are specific to their environments.

Customers may only install and expect support for feature sets they have purchased. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license at http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html.

Customers with Service Contracts

Customers with contracts should obtain upgraded software through their regular update channels. For most customers, upgrades should be obtained through the Software Navigator on Cisco.com at http://www.cisco.com/cisco/software/navigator.html.

Customers Using Third-Party Support Organizations

Customers with Cisco products that are provided or maintained through prior or existing agreements with third-party support organizations, such as Cisco Partners, authorized resellers, or service providers, should contact that organization for assistance with the appropriate course of action.

The effectiveness of any workaround or fix depends on specific customer situations, such as product mix, network topology, traffic behavior, and organizational mission. Because of the variety of affected products and releases, customers should consult their service providers or support organizations to ensure that any applied workaround or fix is the most appropriate in the intended network before it is deployed.

Customers Without Service Contracts

Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco Technical Assistance Center (TAC):

  • +1 800 553 2447 (toll free from within North America)
  • +1 408 526 7209 (toll call from anywhere in the world)
  • e-mail: tac@cisco.com

Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade. Customers without service contracts should request free upgrades through the TAC.

Refer to Cisco Worldwide Contacts at http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html for additional TAC contact information, including localized telephone numbers, instructions, and e-mail addresses for support in various languages.

Exploitation and Public Announcements

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

These vulnerabilities were discovered during the resolution of support cases.

Status of This Notice: Final

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.

A stand-alone copy or Paraphrase of the text of this document that omits the distribution URL in the following section is an uncontrolled copy, and may lack important information or contain factual errors.


Distribution

This advisory is posted on Cisco Security Intelligence Operations at the following link:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130410-mp

Additionally, a text version of this advisory is clear signed with the Cisco PSIRT PGP key and circulated among the following e-mail addresses:

  • cust-security-announce@cisco.com
  • first-bulletins@lists.first.org
  • bugtraq@securityfocus.com
  • vulnwatch@vulnwatch.org
  • cisco@spot.colorado.edu
  • cisco-nsp@puck.nether.net
  • full-disclosure@lists.grok.org.uk

Future updates of this advisory, if any, will reside on Cisco.com but may not be announced on mailing lists. Users can monitor this advisory's URL for any updates.


Revision History

Revision 1.0 2013-April-10 Initial public release

Cisco Security Procedures

Complete information about reporting security vulnerabilities in Cisco products, obtaining assistance with security incidents, and registering to receive security information from Cisco is available on Cisco.com at http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html. This web page includes instructions for press inquiries regarding Cisco Security Advisories. All Cisco Security Advisories are available at http://www.cisco.com/go/psirt.


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