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Cisco Prime Infrastructure Command Execution Vulnerability

Advisory ID: cisco-sa-20140226-pi

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140226-pi

Revision 1.1

Last Updated  2014 March 13 19:31  UTC (GMT)

For Public Release 2014 Februrary 26 16:00  UTC (GMT)


Summary

A vulnerability in Cisco Prime Infrastructure could allow an authenticated, remote attacker to execute arbitrary commands with root-level privileges.

The vulnerability is due to improper validation of URL requests. An attacker could exploit this vulnerability by requesting an unauthorized command via a specific URL. Successful exploitation could allow an authenticated attacker to execute system commands with root-level privileges.

Cisco has released free software updates that address this vulnerability. A software patch that addresses this vulnerability in all affected versions is also available. Workarounds that mitigate this vulnerability are not available.

This advisory is available at the following link: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140226-pi

Affected Products

Vulnerable Products

Cisco Prime Infrastructure software versions 1.2, 1.3, 1.4, and 2.0 are affected by this vulnerability.

Products Confirmed Not Vulnerable

No other Cisco products are currently known to be affected by this vulnerability.

Details

Cisco Prime Infrastructure is a single integrated solution for comprehensive lifecycle management and application performance visibility that helps enable network managers to maintain, operate, and deliver applications and services that meet the demands for a quality end-user experience.

Cisco Prime Infrastructure Command Execution Vulnerability

A vulnerability in Cisco Prime Infrastructure could allow an authenticated, remote attacker to execute arbitrary commands with root-level privileges.

The vulnerability is due to improper validation of URL requests. An attacker could exploit this vulnerability by requesting an unauthorized command via a specific URL. Successful exploitation could allow an authenticated attacker to execute system commands with root-level privileges.

This vulnerability is documented in Cisco bug ID CSCum71308 (registered customers only) and has been assigned the Common Vulnerabilities and Exposures (CVE) ID CVE-2014-0679.

Vulnerability Scoring Details

Cisco has scored the vulnerability 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


CSCum71308 - Cisco Prime Infrastructure Authenticated Command Execution Vulnerability

Calculate the environmental score of CSCum71308

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 - 7.0

Exploitability

Remediation Level

Report Confidence

Proof-of-Concept

Official-Fix

Confirmed


Impact

Successful exploitation of the vulnerability may allow an authenticated, remote attacker to execute arbitrary commands with root-level privileges.

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.

Fixed Software

The following table provides information on the first release that fixed this vulnerability for each major version of Cisco Prime Infrastructure:

 Major Version
 First Fixed In 
 1.2
 Upgrade to a fixed release of 1.3 or higher
 1.3  1.3.0.20-2
 1.4  1.4.0.45-2
 2.0  2.0.0.0.294-2

For more information about upgrading Cisco Prime Infrastructure software, see the Readme for Installing Security Fix Software for the Cisco Prime Infrastructure Appliance.

Note: Customers that use Cisco Prime Infrastructure software version 1.2 can apply the patch below or upgrade to a fixed release of 1.3 or higher.

Example of Affected Version

To determine the version of software that is running on the device, administrators can issue the show version command from the command-line interface (CLI). The following output is from an affected device running Cisco Prime Infrastructure software version 1.4.0.45. This version does not include the fix for Cisco bug ID CSCum71308.
NCS1-2-1-12/admin# show version 

Cisco Application Deployment Engine OS Release: 2.0
ADE-OS Build Version: 2.0.1.038
ADE-OS System Architecture: x86_64

Copyright (c) 2005-2010 by Cisco Systems, Inc.
All rights reserved.
Hostname: NCS1-2-1-12


Version information of installed applications
---------------------------------------------

Cisco Prime Network Control System
------------------------------------------

Version : 1.4.0.45

Example of Unaffected Version

The following show version output is from an unaffected device running Cisco Prime Infrastructure software version 1.4.0.45-2. This version includes the fix for Cisco bug ID CSCum71308.
NCS1-2-1-12/admin# show version 

Cisco Application Deployment Engine OS Release: 2.0
ADE-OS Build Version: 2.0.1.038
ADE-OS System Architecture: x86_64

Copyright (c) 2005-2010 by Cisco Systems, Inc.
All rights reserved.
Hostname: NCS1-2-1-12


Version information of installed applications
---------------------------------------------

Cisco Prime Network Control System
------------------------------------------

Version : 1.4.0.45-2

Patch for Existing Software

For existing installations, a software patch is available that fixes this vulnerability in all affected versions of Cisco Prime Infrastructure. Customers who elect to use the software patch, should apply the patch regardless of other Cisco Prime Infrastructure patches that are applied.

Customers can download the software patch from the "Download Software" page on Cisco.com by selecting:

Downloads Home > Products > Cloud and Systems Management > Routing and Switching Management > Network Management Solutions > Cisco Prime Infrastructure

The filename for this patch is PI-CSCum71308-0.tar.gz. The patch can be installed by issuing the application install PI-CSCum71308-0.tar.gz <Repository Name> command from the CLI.

For details on this command, see Command Reference Guide for Cisco Prime Infrastructure.

Note: Customers that use Cisco Prime Infrastructure software version 1.2 can apply the patch or upgrade to a fixed release of 1.3 or higher.

Example of Patched Version

The following show version output is from a patched device running Cisco Prime Infrastructure software version 1.4.0.45. The fix for Cisco bug ID CSCum71308 has been applied as indicated by the presence of the "SecurityFix_CSCum71308" section in the output.
pi146/admin# show version

Cisco Application Deployment Engine OS Release: 2.0
ADE-OS Build Version: 2.0.1.038
ADE-OS System Architecture: x86_64

Copyright (c) 2005-2010 by Cisco Systems, Inc.
All rights reserved.
Hostname: pi146


Version information of installed applications
---------------------------------------------

Cisco Prime Network Control System
------------------------------------------
Version : 1.4.0.45

SecurityFix_CSCum71308 VERSION INFORMATION
-----------------------------------
Version     : 1.0.0                             Vendor: Cisco Systems, Inc.
Build Date  : January 23 2014  01:24PST

Workarounds

Workarounds that mitigate this vulnerability are not available.

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.

Cisco discovered the vulnerability during internal testing.

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 at the following link:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140226-pi

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 1.1 2014-March-13 Updated Fixed Software section to include a link to upgrade information.
Revision 1.0 2014-February-26 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.