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Multiple Vulnerabilities in Cisco Security Agent

Advisory ID: cisco-sa-20100217-csa

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20100217-csa

Revision 1.2

For Public Release 2010 Februrary 17 16:00  UTC (GMT)


Summary

The Management Center for Cisco Security Agents is affected by a directory traversal vulnerability and a SQL injection vulnerability. Successful exploitation of the directory traversal vulnerability may allow an authenticated attacker to view and download arbitrary files from the server hosting the Management Center. Successful exploitation of the SQL injection vulnerability may allow an authenticated attacker to execute SQL statements that can cause instability of the product or changes in the configuration.

Additionally, the Cisco Security Agent is affected by a denial of service (DoS) vulnerability. Successful exploitation of the Cisco Security Agent agent DoS vulnerability may cause the affected system to crash. Repeated exploitation could result in a sustained DoS condition.

These vulnerabilities are independent of each other.

Cisco has released free software updates that address these vulnerabilities.

This advisory is posted at http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20100217-csa.

Affected Products

Vulnerable Products

Cisco Security Agent releases 5.1, 5.2 and 6.0 are affected by the SQL injection vulnerability. Only Cisco Security Agent release 6.0 is affected by the directory traversal vulnerability. Only Cisco Security Agent release 5.2 is affected by the DoS vulnerability.

Note:  Only the Management Center for Cisco Security Agents is affected by the directory traversal and SQL injection vulnerabilities. The agents installed on user end-points are not affected.

Only Cisco Security Agent release 5.2 for Linux, either managed or standalone, are affected by the DoS vulnerability (the Windows version is not affected).

The Linux version of standalone agents are installed in the following products:

  • Cisco Unified Communications Manager (CallManager)
  • IPCC Express
  • IP Interactive Voice Response (IP IVR)
  • Cisco Unified Meeting Place
  • Cisco Personal Assistant (PA)
  • Cisco Unity Connection

Note:  The Sun Solaris version of the Cisco Security Agent is not affected by these vulnerabilities. Only Cisco Security Agent release 5.2 for Linux, either managed or standalone, are affected by the DoS vulnerability.

Products Confirmed Not Vulnerable

The Windows and Sun Solaris versions of Cisco Security Agent are not affected by any of these vulnerabilities. Only Cisco Security Agent release 5.2 for Linux, either managed or standalone, are affected by the DoS vulnerability.

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

Details

The Cisco Security Agent is a security software agent that provides threat protection for server and desktop computing systems. Cisco Security Agents can be standalone agents or can be managed by the Cisco Security Agent Management Center.

The Management Center for Cisco Security Agents is affected by a directory traversal vulnerability and a SQL injection vulnerability.

Management Center for Cisco Security Agents Directory Traversal Vulnerability

The Management Center for Cisco Security Agents is affected by a directory traversal vulnerability that may allow an authenticated attacker to view and download arbitrary files from the server that is hosting the Management Center for Cisco Security Agents.

This vulnerability is documented in Cisco Bug ID CSCtd73275 ( registered customers only) and has been assigned the Common Vulnerabilities and Exposures (CVE) identifier CVE-2010-0146.

Management Center for Cisco Security Agents SQL Injection Vulnerability

The Management Center for Cisco Security Agents is also affected by a SQL injection vulnerability that may allow an authenticated attacker to execute SQL statements that can cause the Management Center for Cisco Security Agents to become unstable or modify its configuration. These configuration changes may result in modifications to the security policies of the endpoints. Additionally, an attacker may create, delete, or modify management user accounts that are found in the Management Center for Cisco Security Agents.

This vulnerability is documented in Cisco Bug ID CSCtd73290 ( registered customers only) and has been assigned the Common Vulnerabilities and Exposures (CVE) identifier CVE-2010-0147.

Cisco Security Agent Denial of service vulnerability

Cisco Security Agent is affected by a DoS vulnerability that could allow an unauthenticated attacker to cause a system to crash by sending a series of TCP packets.

Note:  Only Cisco Security Agent release 5.2 is affected by the DoS vulnerability. The Windows and Sun Solaris versions of the Cisco Security Agent are not affected by the DoS vulnerability.

This vulnerability is documented in Cisco Bug ID CSCtb89870 ( registered customers only) and has been assigned the Common Vulnerabilities and Exposures (CVE) identifier CVE-2010-0148.

Vulnerability Scoring Details

Cisco has provided scores for the vulnerabilities in this advisory based on the Common Vulnerability Scoring System (CVSS). The CVSS scoring in this Security Advisory is done in accordance with CVSS version 2.0.

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

Cisco has provided a base and temporal score. Customers can then compute environmental scores to assist in determining the impact of the vulnerability in individual networks.

Cisco has provided an FAQ to answer additional questions regarding CVSS at:

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

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

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

CSCtd73275 - Directory Traversal in the Management Center for Cisco Security Agents Calculate the environmental score of CSCtd73275

CVSS Base Score - 6.8

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

Single

Complete

None

None

CVSS Temporal Score - 5.9

Exploitability

Remediation Level

Report Confidence

High

Official-Fix

Confirmed

CSCtd73290 - Management Center for Cisco Security Agents: SQL InjectionCalculate the environmental score of CSCtd73290

CVSS Base Score - 9

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

CSCtb89870 - Kernel Panic When Receiving Certain TCP PacketsCalculate the environmental score of CSCtb89870

CVSS Base Score - 7.8

Access Vector

Access Complexity

Authentication

Confidentiality Impact

Integrity Impact

Availability Impact

Network

Low

None

None

None

Complete

CVSS Temporal Score - 6.4

Exploitability

Remediation Level

Report Confidence

Functional

Official-Fix

Confirmed

Impact

Successful exploitation of the directory traversal vulnerability may allow an authenticated attacker to view and download arbitrary files from the server that is hosting the Management Center for Cisco Security Agents.

Successful exploitation of the SQL injection vulnerability may allow an authenticated attacker to execute SQL statements that can cause the Management Center for Cisco Security Agents to become unstable or modify its configuration.

Successful exploitation of the Cisco Security Agent DoS vulnerability may cause the affected system to crash. Repeated exploitation could result in a sustained DoS condition.

Software Versions and Fixes

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.

Vulnerability

Cisco Security Agent Release

First Fixed Version

Recommended Release

Directory Traversal Vulnerability

5.1

Not vulnerable

Not vulnerable

5.2

Not vulnerable

Not vulnerable

6.0

6.0.1.132

6.0.1.132

SQL Injection Vulnerability

5.1

5.1.0.117

5.1.0.117

5.2

5.2.0.296

5.2.0.296

6.0

6.0.1.132

6.0.1.132

Denial of Service Vulnerability

5.1

Not vulnerable

5.1.0.117

5.2

5.2.0.285

5.2.0.296

6.0

Not vulnerable

6.0.1.132

Cisco CSA software can be downloaded from the following link:

http://tools.cisco.com/support/downloads/go/Redirect.x?mdfid=278065206

Cisco Unified Communications Manager (CallManager)

CUCM is only susceptible to the Denial of Service Vulnerability (CSCtb89870).

CUCM releases 4.x, 5.x, and 8.x are not affected by this vulnerability.

CUCM 6.1(3), 6.1(4), and 7.x versions lower than 7.1(3) are vulnerable. The vulnerability is fixed in CUCM 6.1(5) and higher and 7.1(3) and higher.

Cisco Unity Connection

Cisco Unity Connection is only susceptible to the Denial of Service Vulnerability (CSCtb89870).

Connection releases 1.x and 8.x are NOT affected by this vulnerability.

Connection 2.1(3), 2.1(4), and 7.x versions lower than 7.1(3) are vulnerable. The vulnerability is fixed in Connection 2.1(5) and higher and 7.1(3) and higher.

Workarounds

There are no workarounds available to mitigate these vulnerabilities.

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/content/CiscoAppliedMitigationBulletin/cisco-amb-20100217-csa

Obtaining Fixed Software

Cisco has released free software updates that address these vulnerabilities. Prior to deploying software, customers should consult their maintenance provider or check the software for feature set compatibility and known issues specific to their environment.

Customers may only install and expect support for the feature sets they have purchased. By installing, downloading, accessing or otherwise using such software upgrades, customers agree to be bound by the terms of Cisco's software license terms found at http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html, or as otherwise set forth at Cisco.com Downloads at http://www.cisco.com/public/sw-center/sw-usingswc.shtml.

Do not contact psirt@cisco.com or security-alert@cisco.com for software upgrades.

Customers with Service Contracts

Customers with contracts should obtain upgraded software through their regular update channels. For most customers, this means that upgrades should be obtained through the Software Center on Cisco's worldwide website at http://www.cisco.com.

Customers using Third Party Support Organizations

Customers whose Cisco products 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 support organization for guidance and assistance with the appropriate course of action in regards to this advisory.

The effectiveness of any workaround or fix is dependent on specific customer situations, such as product mix, network topology, traffic behavior, and organizational mission. Due to the variety of affected products and releases, customers should consult with their service provider or support organization to ensure any applied workaround or fix is the most appropriate for use in the intended network before it is deployed.

Customers without Service Contracts

Customers who purchase direct from Cisco but do not hold a Cisco service contract, and customers who purchase through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should acquire upgrades by contacting the Cisco Technical Assistance Center (TAC). TAC contacts are as follows.

  • +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 their product serial number available and be prepared to give the URL of this notice as evidence of entitlement to a free upgrade. Free upgrades for non-contract customers must be requested through the TAC.

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

Exploitation and Public Announcements

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

The directory traversal and SQL injection vulnerabilities were discovered and reported to Cisco by Gabriele Giuseppini from Cigital. Cisco PSIRT appreciates the opportunity to work with researchers on security vulnerabilities and welcomes the opportunity to review and assist in product reports. The DoS vulnerability was found 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's worldwide website at:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20100217-csa

In addition to worldwide web posting, a text version of this notice is clear-signed with the Cisco PSIRT PGP key and is posted to the following e-mail and Usenet news recipients.

  • 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
  • comp.dcom.sys.cisco@newsgate.cisco.com

Future updates of this advisory, if any, will be placed on Cisco's worldwide website, but may or may not be actively announced on mailing lists or newsgroups. Users concerned about this problem are encouraged to check the above URL for any updates.


Revision History

Revision 1.2

2010-February-18

CUCM Updated Information

Revision 1.1

2010-February-17

CSA DoS Vulnerability Update

Revision 1.0

2010-February-17

Initial public release.

Cisco Security Procedures

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