[c-nsp] Cisco Security Advisory: SQL Injection Vulnerability in Cisco Wireless Control System

Wed Aug 11 11:30:00 EDT 2010

Cisco Wireless Control System (WCS) contains a SQL injection
vulnerability that could allow an authenticated attacker full access
to the vulnerable device, including modification of system
configuration; create, modify and delete users; or modify the
configuration of wireless devices managed by WCS.

Cisco has released free software updates that address this
vulnerability.

There are no workarounds for this vulnerability.

This advisory is posted at:

http://www.cisco.com/warp/public/707/cisco-sa-20100811-wcs.shtml

Affected Products
=================

Vulnerable Products
+------------------

Cisco WCS devices running software 6.0.x are affected by this
vulnerability.

Note: Cisco WCS software release 7.0 is not affected by this
vulnerability. Cisco WCS version 7.0.164.0 (which is the first 7.0
version) already contains the fix for this vulnerability. Cisco WCS
software releases prior to 6.0 are not affected by this
vulnerability.

The version of WCS software installed on a particular device can be
found via the Cisco WCS HTTP management interface. Choose "Help > 
About the Software" to obtain the software version.

Products Confirmed Not Vulnerable
+--------------------------------

Cisco Wireless LAN Controllers (WLC) are not affected by this
vulnerability. No other Cisco products are currently known to be
affected by this vulnerability.

Details
=======

Cisco WCS enables an administrator to configure and monitor one or
more WLCs and associated access points.

A SQL injection vulnerability exists in Cisco WCS. Exploitation could
allow an authenticated attacker to modify system configuration;
create, modify and delete users; or modify the configuration of
wireless devices managed by WCS.

This vulnerability is documented in Cisco bug ID CSCtf37019 and has
been assigned Common Vulnerabilities and Exposures (CVE) ID
CVE-2010-2826.

Vulnerability Scoring Details
=============================

Cisco has provided scores for the vulnerability 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

CSCtf37019 - SQL injection in order by clause of Client List screens

CVSS Base Score - 9.0

Access Vector           - Network
Access Complexity       - Low
Authentication          - Single
Confidentiality Impact  - Complete
Integrity Impact        - Complete
Availability Impact     - Complete

CVSS Temporal Score - 7.4

Exploitability          - Functional
Remediation Level       - Official-Fix
Report Confidence       - Confirmed

Impact
======

Successful exploitation of this vulnerability could allow an
authenticated attacker to modify system configuration; create, modify
and delete users; or modify the configuration of wireless devices
managed by WCS.

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.

This vulnerability is fixed in Cisco WCS version 6.0.196.0.

Cisco WCS software can be downloaded from this location:

http://tools.cisco.com/support/downloads/go/Redirect.x?mdfid=279705270

Workarounds
===========

There are no workarounds for this vulnerability.

Mitigation techniques that can be deployed on Cisco devices within
the network are available in the Cisco Applied Mitigation Bulletin
companion document for this advisory:

http://www.cisco.com/warp/public/707/cisco-amb-20100811-wcs.shtml

Obtaining Fixed Software
========================

Cisco has released free software updates that address this
vulnerability. 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 at cisco.com or security-alert at 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 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 at 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 vulnerability described in this advisory.

This vulnerability was found during the troubleshooting of a customer
service request.

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://www.cisco.com/warp/public/707/cisco-sa-20100811-wcs.shtml

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 at cisco.com
  * first-bulletins at lists.first.org
  * bugtraq at securityfocus.com
  * vulnwatch at vulnwatch.org
  * cisco at spot.colorado.edu
  * cisco-nsp at puck.nether.net
  * full-disclosure at lists.grok.org.uk
  * comp.dcom.sys.cisco at 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 |                | Initial   |
| 1.0      | 2010-August-11 | 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/en/US/products/products_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
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