var-201105-0030
Vulnerability from variot
Unspecified vulnerability in Cisco Wireless LAN Controller (WLC) software 6.0 before 6.0.200.0, 7.0 before 7.0.98.216, and 7.0.1xx before 7.0.112.0 allows remote attackers to cause a denial of service (device reload) via a sequence of ICMP packets, aka Bug ID CSCth74426. An attacker can exploit this issue to cause an affected device to reload, denying service to legitimate users. This issue is tracked by Cisco Bug ID CSCth74426. http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCsq24002.
Cisco has released free software updates that address this vulnerability.
There are no available workarounds to mitigate this vulnerability.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20110427-wlc.shtml.
Affected Products
Vulnerable Products +------------------
This vulnerability affects Cisco WLC software versions 6.0 and later. The following products are affected by the vulnerability described in this Security Advisory:
- Cisco 2100 Series Wireless LAN Controllers
- Cisco WLC526 Mobility Express Controller (AIR-WLC526-K9)
- Cisco NME-AIR-WLC Modules for Integrated Services Routers (ISRs)
-
Cisco NM-AIR-WLC Modules for Integrated Services Routers (ISRs)
Note: The Cisco NM-AIR-WLC have reached End-of-Life and End-of-Software Maintenance. Please refer to the following document for more information:
http://www.cisco.com/en/US/prod/collateral/modules/ps2797/prod_end-of-life_notice0900aecd806aeb34.html
Determination of Software Versions +---------------------------------
Administrators can use these instructions to determine the software version that is running on a Cisco WLC using the web or command-line interface or on a Cisco WiSM (using commands on a Cisco Catalyst 6500 Series Switch and Cisco 7600 Series Router).
Cisco Wireless Controllers +-------------------------
To determine the WLC version that is running in a given environment, use one of the following methods:
-
In the web interface, choose the "Monitor" tab, click "Summary" in the left pane, and note the "Software Version" field.
Note: Customers who use a Cisco WLC Module in an ISR will need to issue the "service-module wlan-controller " session command prior to performing the next step on the command line. Customers who use a Cisco Catalyst 3750G Switch with an integrated WLC Module will need to issue the "session processor 1 session" command prior to performing the next step on the command line.
-
From the command-line interface, type "show sysinfo" and note the "Product Version" field, as shown in this example:
(Cisco Controller)> show sysinfo Manufacturer's Name.. Cisco Systems Inc. Product Name......... Cisco Controller Product Version...... 5.1.151.0 RTOS Version......... Linux-2.6.10_mvl401 Bootloader Version... 4.0.207.0 Build Type........... DATA + WPS <output suppressed>
Cisco WiSMs +----------
Use the "show wism module controller 1 status" command on Cisco Catalyst 6500 Series Switch and Cisco 7600 Series Routers that have a WiSM installed. Note the software version as demonstrated in this example, which shows version 5.1.151.0:
Router# show wism module 3 controller 1 status
WiSM Controller 1 in Slot 3
Operational Status of the Controller
: Oper-Up
Service VLAN
: 192
Service Port
: 10
Service Port Mac Address
: 0011.92ff.8742
Service IP Address
: 192.168.10.1
Management IP Address
: 192.168.1.123
Software Version
: 5.1.151.0
Port Channel Number
: 288
Allowed vlan list
: 30,40
Native VLAN ID
: 40
WCP Keep Alive Missed
: 0
Products Confirmed Not Vulnerable +--------------------------------
The following Cisco Wireless LAN Controllers are not affected by this vulnerability:
- Cisco 2000 Series WLCs
- Cisco 2500 Series WLCs
- Cisco 4100 Series WLCs
- Cisco 4400 Series WLCs
- Cisco Catalyst 3750G Integrated WLCs
- Cisco 5500 Series WLCs
- Cisco Wireless Services Modules (WiSMs, both WiSM and WiSM2)
- Cisco Wireless Services Ready Engine (SRE) Modules
- Cisco Flex 7500 Series Cloud Controllers
No other Cisco products are currently known to be affected by this vulnerability.
Details
Cisco WLCs and Cisco WiSMs are responsible for system-wide wireless LAN functions, such as security policies, intrusion prevention, RF management, quality of service (QoS), and mobility.
These devices communicate with controller-based access points over any Layer 2 (Ethernet) or Layer 3 (IP) infrastructure using the Lightweight Access Point Protocol (LWAPP) and the Control and Provisioning of Wireless Access Points (CAPWAP) protocol. This vulnerability can be exploited from both wired and wireless segments.
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
- CSCth74426 ("Certain ICMP traffic could cause WLC to crash")
CVSS Base Score - 7.8 Access Vector - Network Access Complexity - Low Authentication - None Confidentiality Impact - None Integrity Impact - None Availability Impact - Complete
CVSS Temporal Score - 6.4 Exploitability - Functional Remediation Level - Official-Fix Report Confidence - Confirmed
Impact
Successful exploitation of this vulnerability could cause an affected device to reload. 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.
If a given release train is vulnerable, then the earliest possible releases that contain the fix (along with the anticipated date of availability for each, if applicable) are listed in the "First Fixed Release" column of the table. A device running a release in the given train that is earlier than the release in a specific column (less than the First Fixed Release) is known to be vulnerable.
+------------------------------------------------------------+ | Affected Release | First Fixed Release | |------------------------+-----------------------------------| | 4.0 | Not Vulnerable | |------------------------+-----------------------------------| | 4.1 | Not Vulnerable | |------------------------+-----------------------------------| | 4.1 M | Not Vulnerable | |------------------------+-----------------------------------| | 4.2 | Not Vulnerable | |------------------------+-----------------------------------| | 4.2M | Not Vulnerable | |------------------------+-----------------------------------| | 5.0 | Not Vulnerable | |------------------------+-----------------------------------| | 5.1 | Not Vulnerable | |------------------------+-----------------------------------| | 5.2 | Not Vulnerable | |------------------------+-----------------------------------| | 6.0 | 6.0.200.0 | |------------------------+-----------------------------------| | 7.0 | 7.0.98.216 and 7.0.112.0 | +------------------------------------------------------------+
Workarounds
There are no available workarounds to mitigate this vulnerability.
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@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 vulnerability described in this advisory.
This 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://www.cisco.com/warp/public/707/cisco-sa-20110427-wlc.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@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 1.0 | 2011-April-27 | 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.
+-------------------------------------------------------------------- Copyright 2010-2011 Cisco Systems, Inc. All rights reserved. +--------------------------------------------------------------------
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PROVIDED AND/OR DISCOVERED BY: Reported by the vendor.
ORIGINAL ADVISORY: http://www.cisco.com/warp/public/707/cisco-sa-20110427-wlc.shtml
OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/
DEEP LINKS: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/
EXTENDED DESCRIPTION: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/
EXTENDED SOLUTION: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/
EXPLOIT: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/
About: This Advisory was delivered by Secunia as a free service to help private users keeping their systems up to date against the latest vulnerabilities.
Subscribe: http://secunia.com/advisories/secunia_security_advisories/
Definitions: (Criticality, Where etc.) http://secunia.com/advisories/about_secunia_advisories/
Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor
Show details on source website{
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"data": "Unspecified vulnerability in Cisco Wireless LAN Controller (WLC) software 6.0 before 6.0.200.0, 7.0 before 7.0.98.216, and 7.0.1xx before 7.0.112.0 allows remote attackers to cause a denial of service (device reload) via a sequence of ICMP packets, aka Bug ID CSCth74426. \nAn attacker can exploit this issue to cause an affected device to reload, denying service to legitimate users. \nThis issue is tracked by Cisco Bug ID CSCth74426. \nhttp://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails\u0026amp;bugId=CSCsq24002. \n\nCisco has released free software updates that address this\nvulnerability. \n\nThere are no available workarounds to mitigate this vulnerability. \n\nThis advisory is posted at\nhttp://www.cisco.com/warp/public/707/cisco-sa-20110427-wlc.shtml. \n\nAffected Products\n=================\n\nVulnerable Products\n+------------------\n\nThis vulnerability affects Cisco WLC software versions 6.0 and later. \nThe following products are affected by the vulnerability described in\nthis Security Advisory:\n\n * Cisco 2100 Series Wireless LAN Controllers\n * Cisco WLC526 Mobility Express Controller (AIR-WLC526-K9)\n * Cisco NME-AIR-WLC Modules for Integrated Services Routers (ISRs)\n * Cisco NM-AIR-WLC Modules for Integrated Services Routers (ISRs)\n\n Note: The Cisco NM-AIR-WLC have reached End-of-Life and\n End-of-Software Maintenance. Please refer to the following\n document for more information:\n \n http://www.cisco.com/en/US/prod/collateral/modules/ps2797/prod_end-of-life_notice0900aecd806aeb34.html\n\nDetermination of Software Versions\n+---------------------------------\n\nAdministrators can use these instructions to determine the software\nversion that is running on a Cisco WLC using the web or command-line\ninterface or on a Cisco WiSM (using commands on a Cisco Catalyst 6500\nSeries Switch and Cisco 7600 Series Router). \n\nCisco Wireless Controllers\n+-------------------------\n\nTo determine the WLC version that is running in a given environment,\nuse one of the following methods:\n\n * In the web interface, choose the \"Monitor\" tab, click \"Summary\" in\n the left pane, and note the \"Software Version\" field. \n\n Note: Customers who use a Cisco WLC Module in an ISR will need to\n issue the \"service-module wlan-controller \u003cslot/port\u003e\" session\n command prior to performing the next step on the command line. \n Customers who use a Cisco Catalyst 3750G Switch with an integrated\n WLC Module will need to issue the \"session \u003cStack-Member-Number\u003e\n processor 1 session\" command prior to performing the next step on\n the command line. \n\n * From the command-line interface, type \"show sysinfo\" and note the\n \"Product Version\" field, as shown in this example:\n\n (Cisco Controller)\u003e show sysinfo\n\n Manufacturer\u0027s Name.. Cisco Systems Inc. \n Product Name......... Cisco Controller\n Product Version...... 5.1.151.0\n RTOS Version......... Linux-2.6.10_mvl401\n Bootloader Version... 4.0.207.0\n Build Type........... DATA + WPS\n \u003coutput suppressed\u003e\n\nCisco WiSMs\n+----------\n\nUse the \"show wism module \u003cmodule number\u003e controller 1 status\" command\non Cisco Catalyst 6500 Series Switch and Cisco 7600 Series Routers that\nhave a WiSM installed. Note the software version as demonstrated in this\nexample, which shows version 5.1.151.0:\n\n Router# show wism module 3 controller 1 status\n\n WiSM Controller 1 in Slot 3\n Operational Status of the Controller\n : Oper-Up\n Service VLAN\n : 192\n Service Port\n : 10\n Service Port Mac Address\n : 0011.92ff.8742\n Service IP Address\n : 192.168.10.1\n Management IP Address\n : 192.168.1.123\n Software Version\n : 5.1.151.0\n Port Channel Number\n : 288\n Allowed vlan list\n : 30,40\n Native VLAN ID\n : 40\n WCP Keep Alive Missed\n : 0\n\nProducts Confirmed Not Vulnerable\n+--------------------------------\n\nThe following Cisco Wireless LAN Controllers are not affected by this\nvulnerability:\n\n * Cisco 2000 Series WLCs\n * Cisco 2500 Series WLCs\n * Cisco 4100 Series WLCs\n * Cisco 4400 Series WLCs\n * Cisco Catalyst 3750G Integrated WLCs\n * Cisco 5500 Series WLCs\n * Cisco Wireless Services Modules (WiSMs, both WiSM and WiSM2)\n * Cisco Wireless Services Ready Engine (SRE) Modules\n * Cisco Flex 7500 Series Cloud Controllers\n\nNo other Cisco products are currently known to be affected by this\nvulnerability. \n\nDetails\n=======\n\nCisco WLCs and Cisco WiSMs are responsible for system-wide wireless\nLAN functions, such as security policies, intrusion prevention, RF\nmanagement, quality of service (QoS), and mobility. \n\nThese devices communicate with controller-based access points over\nany Layer 2 (Ethernet) or Layer 3 (IP) infrastructure using the\nLightweight Access Point Protocol (LWAPP) and the Control and\nProvisioning of Wireless Access Points (CAPWAP) protocol. This vulnerability can be\nexploited from both wired and wireless segments. \n\nVulnerability Scoring Details\n=============================\n\nCisco has provided scores for the vulnerability in this advisory\nbased on the Common Vulnerability Scoring System (CVSS). The CVSS\nscoring in this Security Advisory is done in accordance with CVSS\nversion 2.0. \n\nCVSS is a standards-based scoring method that conveys vulnerability\nseverity and helps determine urgency and priority of response. \n\nCisco has provided a base and temporal score. Customers can then\ncompute environmental scores to assist in determining the impact of\nthe vulnerability in individual networks. \n\nCisco has provided an FAQ to answer additional questions regarding CVSS\nat:\n\nhttp://www.cisco.com/web/about/security/intelligence/cvss-qandas.html\n\nCisco has also provided a CVSS calculator to help compute the\nenvironmental impact for individual networks at:\n\nhttp://intellishield.cisco.com/security/alertmanager/cvss\n\n* CSCth74426 (\"Certain ICMP traffic could cause WLC to crash\")\n\nCVSS Base Score - 7.8\n Access Vector - Network\n Access Complexity - Low\n Authentication - None\n Confidentiality Impact - None\n Integrity Impact - None\n Availability Impact - Complete\n\nCVSS Temporal Score - 6.4\n Exploitability - Functional\n Remediation Level - Official-Fix\n Report Confidence - Confirmed\n\n\nImpact\n======\n\nSuccessful exploitation of this vulnerability could cause an affected\ndevice to reload. Repeated exploitation could result in a sustained\nDoS condition. \n\nSoftware Versions and Fixes\n===========================\n\nWhen considering software upgrades, also consult\nhttp://www.cisco.com/go/psirt and any subsequent advisories to determine\nexposure and a complete upgrade solution. \n\nIn all cases, customers should exercise caution to be certain the\ndevices to be upgraded contain sufficient memory and that current\nhardware and software configurations will continue to be supported\nproperly by the new release. If the information is not clear, contact\nthe Cisco Technical Assistance Center (TAC) or your contracted\nmaintenance provider for assistance. \n\nIf a given release train is vulnerable, then the earliest possible\nreleases that contain the fix (along with the anticipated date of\navailability for each, if applicable) are listed in the \"First Fixed\nRelease\" column of the table. A device running a release in the given\ntrain that is earlier than the release in a specific column (less\nthan the First Fixed Release) is known to be vulnerable. \n\n+------------------------------------------------------------+\n| Affected Release | First Fixed Release |\n|------------------------+-----------------------------------|\n| 4.0 | Not Vulnerable |\n|------------------------+-----------------------------------|\n| 4.1 | Not Vulnerable |\n|------------------------+-----------------------------------|\n| 4.1 M | Not Vulnerable |\n|------------------------+-----------------------------------|\n| 4.2 | Not Vulnerable |\n|------------------------+-----------------------------------|\n| 4.2M | Not Vulnerable |\n|------------------------+-----------------------------------|\n| 5.0 | Not Vulnerable |\n|------------------------+-----------------------------------|\n| 5.1 | Not Vulnerable |\n|------------------------+-----------------------------------|\n| 5.2 | Not Vulnerable |\n|------------------------+-----------------------------------|\n| 6.0 | 6.0.200.0 |\n|------------------------+-----------------------------------|\n| 7.0 | 7.0.98.216 and 7.0.112.0 |\n+------------------------------------------------------------+\n\nWorkarounds\n===========\n\nThere are no available workarounds to mitigate this vulnerability. \n\nObtaining Fixed Software\n========================\n\nCisco has released free software updates that address this\nvulnerability. Prior to deploying software, customers should consult\ntheir maintenance provider or check the software for feature set\ncompatibility and known issues specific to their environment. \n\nCustomers may only install and expect support for the feature\nsets they have purchased. By installing, downloading, accessing\nor otherwise using such software upgrades, customers agree to be\nbound by the terms of Cisco\u0027s software license terms found at\nhttp://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html,\nor as otherwise set forth at Cisco.com Downloads at\nhttp://www.cisco.com/public/sw-center/sw-usingswc.shtml. \n\nDo not contact psirt@cisco.com or security-alert@cisco.com for\nsoftware upgrades. \n\nCustomers with Service Contracts\n+-------------------------------\n\nCustomers with contracts should obtain upgraded software through\ntheir regular update channels. For most customers, this means that\nupgrades should be obtained through the Software Center on Cisco\u0027s\nworldwide website at http://www.cisco.com. \n\nCustomers using Third Party Support Organizations\n+------------------------------------------------\n\nCustomers whose Cisco products are provided or maintained through\nprior or existing agreements with third-party support organizations,\nsuch as Cisco Partners, authorized resellers, or service providers\nshould contact that support organization for guidance and assistance\nwith the appropriate course of action in regards to this advisory. \n\nThe effectiveness of any workaround or fix is dependent on specific\ncustomer situations, such as product mix, network topology, traffic\nbehavior, and organizational mission. Due to the variety of affected\nproducts and releases, customers should consult with their service\nprovider or support organization to ensure any applied workaround or\nfix is the most appropriate for use in the intended network before it\nis deployed. \n\nCustomers without Service Contracts\n+----------------------------------\n\nCustomers who purchase direct from Cisco but do not hold a Cisco\nservice contract, and customers who purchase through third-party\nvendors but are unsuccessful in obtaining fixed software through\ntheir point of sale should acquire upgrades by contacting the Cisco\nTechnical Assistance Center (TAC). TAC contacts are as follows. \n\n * +1 800 553 2447 (toll free from within North America)\n * +1 408 526 7209 (toll call from anywhere in the world)\n * e-mail: tac@cisco.com\n\nCustomers should have their product serial number available and be\nprepared to give the URL of this notice as evidence of entitlement to\na free upgrade. Free upgrades for non-contract customers must be\nrequested through the TAC. \n\nRefer to\nhttp://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html\nfor additional TAC contact information, including localized telephone\nnumbers, and instructions and e-mail addresses for use in various\nlanguages. \n\nExploitation and Public Announcements\n=====================================\n\nThe Cisco PSIRT is not aware of any public announcements or malicious\nuse of the vulnerability described in this advisory. \n\nThis vulnerability was found during internal testing. \n\nStatus of this Notice: FINAL\n============================\n\nTHIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS AND DOES NOT IMPLY ANY\nKIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF\nMERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE\nINFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS\nAT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS\nDOCUMENT AT ANY TIME. \n\nA stand-alone copy or Paraphrase of the text of this document that\nomits the distribution URL in the following section is an\nuncontrolled copy, and may lack important information or contain\nfactual errors. \n\nDistribution\n============\n\nThis advisory is posted on Cisco\u0027s worldwide website at:\n\nhttp://www.cisco.com/warp/public/707/cisco-sa-20110427-wlc.shtml\n\nIn addition to worldwide web posting, a text version of this notice\nis clear-signed with the Cisco PSIRT PGP key and is posted to the\nfollowing e-mail and Usenet news recipients. \n\n * cust-security-announce@cisco.com\n * first-bulletins@lists.first.org\n * bugtraq@securityfocus.com\n * vulnwatch@vulnwatch.org\n * cisco@spot.colorado.edu\n * cisco-nsp@puck.nether.net\n * full-disclosure@lists.grok.org.uk\n * comp.dcom.sys.cisco@newsgate.cisco.com\n\nFuture updates of this advisory, if any, will be placed on Cisco\u0027s\nworldwide website, but may or may not be actively announced on\nmailing lists or newsgroups. Users concerned about this problem are\nencouraged to check the above URL for any updates. \n\nRevision History\n================\n\n+------------------------------------------------------------+\n| Revision 1.0 | 2011-April-27 | Initial public release. |\n+------------------------------------------------------------+\n\nCisco Security Procedures\n=========================\n\nComplete information on reporting security vulnerabilities\nin Cisco products, obtaining assistance with security\nincidents, and registering to receive security information\nfrom Cisco, is available on Cisco\u0027s worldwide website at\nhttp://www.cisco.com/en/US/products/products_security_vulnerability_policy.html. \nThis includes instructions for press inquiries regarding\nCisco security notices. All Cisco security advisories are available at\nhttp://www.cisco.com/go/psirt. \n\n+--------------------------------------------------------------------\nCopyright 2010-2011 Cisco Systems, Inc. All rights reserved. \n+--------------------------------------------------------------------\n\nUpdated: Apr 27, 2011 Document ID: 112916\n-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG v1.4.10 (GNU/Linux)\n\niF4EAREIAAYFAk24NE8ACgkQQXnnBKKRMNA3AgD/Ritp5wJIc3B4+GSD22Ki4ZvI\n+qaHRaFYQ+KWAD4T0H0A/1xZGm6w93gius/B+vXt2FeLsMpWs00BuCw247xsD2w8\n=SJxE\n-----END PGP SIGNATURE-----\n. \n\nPROVIDED AND/OR DISCOVERED BY:\nReported by the vendor. \n\nORIGINAL ADVISORY:\nhttp://www.cisco.com/warp/public/707/cisco-sa-20110427-wlc.shtml\n\nOTHER REFERENCES:\nFurther details available in Customer Area:\nhttp://secunia.com/products/corporate/EVM/\n\nDEEP LINKS:\nFurther details available in Customer Area:\nhttp://secunia.com/products/corporate/EVM/\n\nEXTENDED DESCRIPTION:\nFurther details available in Customer Area:\nhttp://secunia.com/products/corporate/EVM/\n\nEXTENDED SOLUTION:\nFurther details available in Customer Area:\nhttp://secunia.com/products/corporate/EVM/\n\nEXPLOIT:\nFurther details available in Customer Area:\nhttp://secunia.com/products/corporate/EVM/\n\n----------------------------------------------------------------------\n\nAbout:\nThis Advisory was delivered by Secunia as a free service to help\nprivate users keeping their systems up to date against the latest\nvulnerabilities. \n\nSubscribe:\nhttp://secunia.com/advisories/secunia_security_advisories/\n\nDefinitions: (Criticality, Where etc.)\nhttp://secunia.com/advisories/about_secunia_advisories/\n\n\nPlease Note:\nSecunia recommends that you verify all advisories you receive by\nclicking the link. \nSecunia NEVER sends attached files with advisories. \nSecunia does not advise people to install third party patches, only\nuse those supplied by the vendor",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.