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Cisco Security Advisory

Multiple Vulnerabilities in Cisco Unified Communications Domain Manager

Advisory ID: cisco-sa-20140702-cucdm

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140702-cucdm

Revision 2.0

Last Updated  2014 July 8 21:14  UTC (GMT)

For Public Release 2014 July 2 16:00  UTC (GMT)


Summary

Cisco Unified Communications Domain Manager (Cisco Unified CDM) is affected by the following vulnerabilities:

  • Cisco Unified Communications Domain Manager Privilege Escalation Vulnerability
  • Cisco Unified Communications Domain Manager Default SSH Key Vulnerability
  • Cisco Unified Communications Domain Manager BVSMWeb Unauthorized Data Manipulation Vulnerability

Successful exploitation of the Cisco Unified Communications Domain Manager Privilege Escalation Vulnerability or of the Cisco Unified Communications Domain Manager Default SSH Key Vulnerability may allow an attacker to execute arbitrary commands or obtain privileged access to the affected system.

Successful exploitation of the Cisco Unified Communications Domain Manager BVSMWeb Unauthorized Data Manipulation Vulnerability may allow an attacker to access and modify BVSMWeb portal user information such settings in the personal phone directory, speed dials, Single Number Reach, and call forward settings.

Cisco has released free software updates that address the Cisco Unified Communications Domain Manager Privilege Escalation Vulnerability and the Cisco Unified Communications Domain Manager Default SSH Key Vulnerability.
Cisco will provide a free software update for the Cisco Unified Communications Domain Manager BVSMWeb Unauthorized Data Manipulation Vulnerability as soon as the fix is available.

Workarounds that mitigate these vulnerabilities are not available. Customers that are concerned about the Cisco Unified Communications Domain Manager BVSMWeb Unauthorized Data Manipulation Vulnerability may apply the mitigation detailed in the "Workarounds" section of this advisory.

This advisory is available at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140702-cucdm

Affected Products

Vulnerable Products

Cisco Unified Communications Domain Manager Privilege Escalation Vulnerability

This vulnerability affects all Cisco Unified CDM Application Software versions prior to 8.1.4.

Cisco Unified Communications Domain Manager Default SSH Key Vulnerability

This vulnerability affects all Cisco Unified CDM Platform Software versions prior to 4.4.2.

Note: Initial installations of Cisco Unified CDM Platform Software versions 4.4.2 and 4.4.3 are not vulnerable. However, installations upgraded from a vulnerable version (such as upgrading from 4.4.1) to a fixed version (such as upgrading to 4.4.2 or 4.4.3) will still be vulnerable because the upgrade installer will not delete the default SSH key.

Cisco Unified Communications Domain Manager BVSMWeb Unauthorized Data Manipulation Vulnerability

This vulnerability affects all Cisco Unified CDM Application Software versions prior to 10

Determining the Running Software Version

The software version for both Cisco Unified CDM Application Software and Platform Software can be determined by accessing the Administration GUI and navigating the About menu options on the top left corner of the page.

Products Confirmed Not Vulnerable

Cisco Unified Communications Manager (Cisco Unified CM) is not affected by these vulnerabilities.

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

Details

Cisco Unified Communications Domain Manager (Cisco Unified CDM) is a service delivery and management platform that provides automation and administrative functions over the Cisco Unified Communications Manager, Cisco Unity Connection, and Cisco Jabber applications, as well as the associated phones and soft clients.

CUCDM is part of Cisco Hosted Collaboration System (HCS). The Cisco Unified CDM solution includes an Application Software and a Platform Software.

Cisco Unified Communications Domain Manager Privilege Escalation Vulnerability

A vulnerability in the web framework of the Cisco Unified Communications Domain Manager Application Software could allow an authenticated, remote attacker to elevate privileges and gain administrative access to the affected system.

The vulnerability is due to improper implementation of authentication and authorization controls of the Administration GUI. An attacker could exploit this vulnerability by submitting a crafted URL to change the administrative credentials of a user. The attacker needs to be authenticated to the system or convince a valid user of the Administration GUI to click a malicious link.

This vulnerability is documented in Cisco bug ID CSCun49862 (registered customers only) and has been assigned Common Vulnerabilities and Exposures (CVE) identifier CVE-2014-2197.

Cisco Unified Communications Domain Manager Default SSH Key Vulnerability

A vulnerability in the implementation of the framework that allows access to support representatives of the Cisco Unified Communications Domain Manager Platform Software could allow an unauthenticated, remote attacker to connect to the affected system with the privileges of the root user.

The vulnerability is due to the presence of a default SSH private key, which is stored in an insecure way on the system. An attacker could exploit this vulnerability by obtaining the SSH private key. For example, the attacker might reverse engineer the binary file of the operating system. This will allow the attacker to connect by using the support account to the system without requiring any form of authentication. An exploit could allow the attacker to gain access to the system with the privileges of the root user.

This vulnerability is documented in Cisco bug ID CSCud41130 (registered customers only) and has been assigned CVE ID CVE-2014-2198.

Cisco Unified Communications Domain Manager BVSMWeb Unauthorized Data Manipulation Vulnerability

A vulnerability in the web framework of Cisco Unified Communications Domain Manager Application Software could allow an unauthenticated, remote attacker to access and modify BVSMWeb portal user information such as settings in the personal phone directory, speed dials, Single Number Reach, and call forward settings.

The vulnerability is due to improper implementation of authentication and authorization controls when accessing some web pages of the BVSMWeb portal. An attacker could exploit this vulnerability by submitting a crafted URL to the affected system.

This vulnerability is documented in Cisco bug ID CSCum77041 (registered customers only) and has been assigned CVE ID CVE-2014-3300

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



CSCun49862 - Cisco Unified Communications Domain Manager Privilege Escalation Vulnerability

Calculate the environmental score of CSCun49862

CVSS Base Score - 9.0

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

Single

Complete

Complete

Complete

CVSS Temporal Score - 7.4

Exploitability

Remediation Level

Report Confidence

Functional

Official-Fix

Confirmed




CSCud41130 - Cisco Unified Communications Domain Manager Default SSH Key Vulnerability

Calculate the environmental score of CSCud41130

CVSS Base Score - 10.0

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

None

Complete

Complete

Complete

CVSS Temporal Score - 8.7

Exploitability

Remediation Level

Report Confidence

High

Official-Fix

Confirmed




CSCum77041 - Cisco Unified Communications Domain Manager BVSMWeb Unauthorized Data Manipulation Vulnerability

Calculate the environmental score of CSCum77041

CVSS Base Score - 7.5

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

None

Partial

Partial

Partial

CVSS Temporal Score - 7.1

Exploitability

Remediation Level

Report Confidence

Functional

Unavailable

Confirmed


Impact

Successful exploitation of the Cisco Unified Communications Domain Manager Privilege Escalation Vulnerability or of the Cisco Unified Communications Domain Manager Default SSH Key Vulnerability may allow an attacker to execute arbitrary commands or obtain privileged access to the affected system.

Successful exploitation of the Cisco Unified Communications Domain Manager BVSMWeb Unauthorized Data Manipulation Vulnerability may allow an attacker to access and modify BVSMWeb portal user information such settings in the personal phone directory, speed dials, Single Number Reach, and call forward settings.

Software Versions and Fixes

When considering software upgrades, customers are advised to consult the Cisco Security Advisories, Responses, and Notices 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.

Cisco Unified Communications Domain Manager Privilege Escalation Vulnerability

The Cisco Unified Communications Domain Manager Privilege Escalation Vulnerability is resolved in Cisco Unified CDM Application Software usm-8.1.4-ubuntu10_04.tar.gz and later.

Cisco Unified Communications Domain Manager Default SSH Key Vulnerability

The Cisco Unified Communications Domain Manager Default SSH Key Vulnerability is resolved in Cisco Unified CDM Platform Software voss-platform_4.4.2_04.326 and later.

Note: Initial installations of Cisco Unified CDM Platform Software versions 4.4.2 and 4.4.3 are not vulnerable. However, installations upgraded from a vulnerable version (such as upgrading from 4.4.1) to a fixed version (such as upgrading to 4.4.2 or 4.4.3) will still be vulnerable because the upgrade installer will not delete the default SSH key.

Customers may request a hotfix patch to address this vulnerability through the normal support channel. The hotfix addresses only the Cisco Unified Communications Domain Manager Default SSH Key Vulnerability.

Customers can address this vulnerability either by requesting a hotfix or by performing a clean installation of version 4.4.2 or 4.4.3.

Cisco Unified Communications Domain Manager BVSMWeb Unauthorized Data Manipulation Vulnerability

Currently, there is no Cisco Unified CDM version that addresses the Cisco Unified Communications Domain Manager BVSMWeb Unauthorized Data Manipulation Vulnerability. Cisco Unified CDM Application Software version 10 and later does not implement the BVSMWeb service interface and it is not affected by this vulnerability. Cisco Unified CDM version 10 is expected to be available in September 2014. Customers that are concerned about this vulnerability should apply the mitigation detailed in the "Workarounds" section of this advisory until a fixed software release is available.

Workarounds

There are no workarounds that mitigate the vulnerabilities in this security advisory.

Customers that are affected by the Cisco Unified Communications Domain Manager BVSMWeb Unauthorized Data Manipulation Vulnerability should use the functionality offered by the Cisco Unified Communication Manager and the Cisco Unified CDM Self-Care portal instead of the Cisco Unified CDM BVSMWeb portal to provide services.

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/viewAMBAlert.x?alertId=34689

Obtaining Fixed Software

Cisco has released free software updates that address the vulnerabilities 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 vulnerabilities that are described in this advisory.

The Cisco Unified Communications Domain Manager Privilege Escalation Vulnerability and Cisco Unified Communications Domain Manager BVSMWeb Unauthorized Data Manipulation Vulnerability were reported to Cisco by Fatih Ozavci from Sense of Security.

The Cisco Unified Communications Domain Manager Default SSH Key Vulnerability was found 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-20140702-cucdm

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 2.0 2014-July-08 Added information regarding fixed versions of the Cisco Unified Communications Domain Manager Default SSH Key Vulnerability
Revision 1.0 2014-July-02 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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