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Cisco Security Advisory

Cisco Small Business Video Surveillance Cameras and Cisco 4-Port Gigabit Security Routers Authentication Bypass Vulnerability

Advisory ID: cisco-sa-20100421-vsc

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20100421-vsc

Revision 1.1

For Public Release 2010 April 21 16:00  UTC (GMT)


Summary

Cisco Small Business Video Surveillance Cameras and Cisco RVS4000 4-port Gigabit Security Routers contain a vulnerability that could allow an authenticated user to view passwords for other users, regardless of the authenticated user's level of authorization.

An unprivileged user could take advantage of this vulnerability to gain full administrative access on the device or view another user's credentials.

Cisco has released free software updates that address this vulnerability. Workarounds that mitigate this vulnerability are available on some devices.

This advisory is posted at http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20100421-vsc.

Affected Products

Vulnerable Products

This vulnerability affects the Cisco RVS4000 4-port Gigabit Security Router and all Cisco Small Business Video Surveillance Cameras, except for the Cisco PVC300 Pan Tilt Optical Zoom Camera. These cameras are affected:

  • Cisco PVC2300 Business Internet Video Camera - Audio/PoE
  • Cisco WVC200 Wireless-G PTZ Internet Video Camera - Audio
  • Cisco WVC210 Wireless-G PTZ Internet Video Camera - 2-way Audio
  • Cisco WVC2300 Wireless-G Business Internet Video Camera - Audio

Products Confirmed Not Vulnerable

The Cisco PVC300 Pan Tilt Optical Zoom Camera and Cisco Small Business cameras are not affected by this vulnerability.

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

Details

Cisco Small Business Video Surveillance Cameras are a component of network-based, physical security solutions. More information on the surveillance cameras can be found at this link: http://www.cisco.com/cisco/web/solutions/small_business/products/security/small_business_video_surveillance_cameras/index.html

The Small Business Video Surveillance Cameras are connected to an IP network and are remotely accessible for both surveillance and device management. An administrator can restrict a user's ability to manage the device, allowing the user to employ the camera for surveillance only.

The Cisco RVS4000 Gigabit Security Router delivers high-speed network access and IPsec VPN capabilities for as many as five users. The Cisco RVS4000 also provides firewall and intrusion prevention capabilities. More information on the Cisco RVS4000 Gigabit Security Router can be found at this link: http://www.cisco.com/en/US/products/ps9928/index.html

A user on the PVC2300 and WVC2300 cameras can use a specifically crafted URL to bypass any restrictions that are configured to prevent the device configuration from being viewed. The user could then view the passwords for all users on the device.

A user on the WVC200 and WVC210 camera must have been granted setup privileges to take advantage of this vulnerability to view the passwords. The ability to configure setup privileges is not available on the other devices affected by this vulnerability.

Administrative users on the RVS4000 router may be able to view the passwords of other administrative users.

This vulnerability is documented in Cisco bug ID CSCte64726 ( registered customers only) and has been assigned Common Vulnerabilities and Exposures (CVE) ID CVE-2010-0593.

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.

Unprivileged users may be able to view passwords for other users

Calculate the environmental score of CSCte64726

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

Impact

Successful exploitation of the vulnerability could allow an authenticated user to discover all the user passwords contained on the device. The user could use the passwords to gain full administrative access to the device and any other devices that use a common password.

Software Versions and Fixes

To determine the software version running on a camera, administrators can click the "About" tab at the top-right of the device user interface. The software version information can be obtained on the System Status page under the "Status" tab.

The latest camera software can be downloaded at http://tools.cisco.com/support/downloads/go/Redirect.x?mdfid=282414029 ( registered customers only) .

The software version of the RVS4000 is displayed on the main router page displayed after users log in.

The latest RVS4000 software can be downloaded at http://tools.cisco.com/support/downloads/pub/Redirect.x?mdfid=282413304 ( registered customers only) .

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 Small Business Support Center or your contracted maintenance provider for assistance.

Product

First Fixed Version

PVC2300

1.1.2.6

WVC200

1.2.2.0

WVC210

1.1.0.15

WVC2300

1.1.2.6

RVS4000

1.3.2.0


Workarounds

There are no workarounds for the RVS4000, PVC2300, and WVC2300 cameras.

On the WVC200 and WVC210 cameras, make sure that only trusted users are given setup privileges.

Obtaining Fixed Software

Cisco has released free software updates that address this vulnerability. Prior to deploying software, customers should 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 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.

If the information is not clear, please contact the Cisco Small Business Support Center or your contracted maintenance provider for assistance. Small Business Support Center contacts are as follows.

  • +1 866 606 1866 (toll free from within North America)
  • +1 408 418 1866 (toll call from anywhere in the world)

Customers should have their product serial number available.

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

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 vulnerability described in this advisory.

Cisco would like to thank Eljakim Schrijvers of Eljakim Information Technology bv, for reporting this vulnerability to us and for working with us on the disclosure.

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-20100421-vsc

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 1.1

2010-May-17

Updated First Fixed Version in the software table for WVC200 and WVC210. Also added content to "Exploitation and Public Announcements" section.

Revision 1.0

2010-April-21

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.


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