Advisory ID: cisco-sa-20111026-camera
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20111026-camera
Revision 1.0
For Public Release 2011 October 26 16:00 UTC (GMT)
Contents
Summary
Affected Products
Details
Vulnerability Scoring Details
Impact
Software Versions and Fixes
Workarounds
Obtaining Fixed Software
Exploitation and Public Announcements
Status of This Notice: Final
Distribution
Revision History
Cisco Security Procedures
Summary
A denial of service (DoS) vulnerability exists in the Cisco Video Surveillance IP Cameras 2421, 2500 series and 2600 series of devices. An unauthenticated, remote attacker could exploit this vulnerability by sending crafted RTSP TCP packets to an affected device. Successful exploitation prevents cameras from sending video streams, subsequently causing a reboot. The camera reboot is done automatically and does not require action from an operator.There are no workarounds available to mitigate exploitation of this vulnerability that can be applied on the Cisco Video Surveillance IP Cameras. Mitigations that can be deployed on Cisco devices within the network are available.
This advisory is posted at http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20111026-camera.
Note: Effective October 18, 2011, Cisco moved the current list of Cisco Security Advisories and Responses published by Cisco PSIRT. The new location is http://tools.cisco.com/security/center/publicationListing. You can also navigate to this page from the Cisco Products and Services menu of the Cisco Security Intelligence Operations (SIO) Portal. Following this transition, new Cisco Security Advisories and Responses will be published to the new location. Although the URL has changed, the content of security documents and the vulnerability policy are not impacted. Cisco will continue to disclose security vulnerabilities in accordance with the published Security Vulnerability Policy.
Affected Products
Vulnerable Products
Cisco Video Surveillance IP Cameras 2421, 2500 series, and 2600 series are affected by this vulnerability.
For Cisco Video Surveillance 2421 and 2500 series IP Cameras, all 1.1.x software releases and releases prior 2.4.0 are affected by this vulnerability.
For Cisco Video Surveillance 2600 IP Camera, all software releases before 4.2.0-13 are affected by this vulnerability.
To check the version of system firmware that is running on the device and to determine device model, log in to the device with the web management interface, and navigate to the Status page.
Products Confirmed Not Vulnerable
The following Cisco Video Surveillance IP Cameras are confirmed not vulnerable:
- Cisco Video Surveillance 2900 Series IP Cameras
- Cisco Video Surveillance 4000 Series IP Cameras
- Cisco Video Surveillance 5000 Series HD IP Dome Cameras
No other Cisco products are currently known to be affected by this vulnerability.
Details
Cisco Video Surveillance IP Cameras RTSP Crafted Packet Vulnerability
The Cisco Video Surveillance IP Cameras 2421, 2500 series, and 2600 series of devices are affected by a RSTP TCP crafted packets denial of service vulnerability that may allow an unauthenticated attacker to cause the device to reload by sending a series of crafted packets. This vulnerability can be exploited from both wired and wireless segments.
This vulnerability is documented in the following Cisco bug IDs:
- Cisco Video Surveillance 2421 IP Dome in Cisco bug ID: CSCtj96312, (registered customers only).
- Cisco Video Surveillance 2500 Series IP Cameras in Cisco bug ID: CSCtj39462, (registered customers only).
- Cisco Video Surveillance 2600 Series IP Cameras in Cisco bug ID: CSCtl80175, (registered customers only).
Vulnerability Scoring Details
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 .
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CSCtj96312, CSCtj39462, CSCtl80175, : Cisco Video Surveillance IP Cameras RTSP Crafted Packet Vulnerability Calculate the environmental score of CSCtj96312, CSCtj39462, CSCtl80175, |
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CVSS Base Score - 7.8 |
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Access Vector |
Access Complexity |
Authentication |
Confidentiality Impact |
Integrity Impact |
Availability Impact |
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Network |
Low |
None |
None |
None |
Complete |
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CVSS Temporal Score - 6.4 |
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Exploitability |
Remediation Level |
Report Confidence |
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Functional |
Official-Fix |
Confirmed |
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Impact
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.
Software release 2.4.0 and later for Cisco Video Surveillance 2421 and 2500 series IP Cameras contain fix for this vulnerability. The software can be downloaded from Cisco Software Center at the following location: http://www.cisco.com/cisco/software/type.html?mdfid=282052803&flowid=7144
Software release 4.2.0-13 and later for Cisco Video Surveillance 2600 series IP Cameras contain the fix for this vulnerability. The software can be downloaded from Cisco Software Center at the following location: http://www.cisco.com/cisco/pub/software/portal/select.html?mdfid=283841388&catid=280249565
Workarounds
There are no workarounds available to mitigate exploitation of this vulnerability that can be applied on the Cisco Video Surveillance IP Cameras.
Mitigations that can be deployed on Cisco devices within the network are available in the Cisco Applied Intelligence companion document for this advisory, which is available at the following location: http://tools.cisco.com/security/center/content/CiscoAppliedMitigationBulletin/cisco-amb-20111026-cameraObtaining Fixed Software
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 Using Third-Party Support Organizations
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.
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+1 800 553 2447 (toll free from within North America)
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+1 408 526 7209 (toll call from anywhere in the world)
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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.
This vulnerability was discovered 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-20111026-camera
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.
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cust-security-announce@cisco.com
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first-teams@first.org
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bugtraq@securityfocus.com
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vulnwatch@vulnwatch.org
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cisco@spot.colorado.edu
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cisco-nsp@puck.nether.net
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full-disclosure@lists.grok.org.uk
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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 1.0 | 2011-October-26 | 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/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.
