var-200902-0480
Vulnerability from variot
Unspecified vulnerability in the Wireless LAN Controller (WLC) TSEC driver in the Cisco 4400 WLC, Cisco Catalyst 6500 and 7600 Wireless Services Module (WiSM), and Cisco Catalyst 3750 Integrated Wireless LAN Controller with software 4.x before 4.2.176.0 and 5.x before 5.1 allows remote attackers to cause a denial of service (device crash or hang) via unknown IP packets. Multiple Cisco Wireless LAN Controllers are prone to these remote vulnerabilities: - Multiple denial-of-service vulnerabilities - A remote privilege-escalation vulnerability Remote attackers can exploit these issues to gain administrative rights on an affected device or crash the device, denying service to legitimate users.
SOLUTION: Update to a fixed version. Please see vendor advisory for a patch matrix.
PROVIDED AND/OR DISCOVERED BY: Reported by the vendor.
ORIGINAL ADVISORY: http://www.cisco.com/warp/public/707/cisco-sa-20090204-wlc.shtml
About: This Advisory was delivered by Secunia as a free service to help everybody 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. This security advisory outlines details of the following vulnerabilities:
- Denial of Service Vulnerabilities (total of three)
- Privilege Escalation Vulnerability
These vulnerabilities are independent of each other.
Cisco has released free software updates that address these vulnerabilities.
There are no workarounds available for these vulnerabilities.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20090204-wlc.shtml.
Affected Products
Vulnerable Products +------------------
The following products and software versions are affected for each vulnerability.
Denial of Service Vulnerabilities +--------------------------------
Two denial of service (DoS) vulnerabilities affect software versions 4.2 and later.
A third DoS vulnerability affects software versions 4.1 and later.
Privilege Escalation Vulnerability +---------------------------------
Only WLC software version 4.2.173.0 is affected by this vulnerability.
Determination of Software Versions +---------------------------------
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.
- From the command-line interface, type "show sysinfo" and note the
Product Version, as shown in the following 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>
Use the "show wism module
Router#show wism mod 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 +--------------------------------
No other Cisco products are currently known to be affected by these vulnerabilities.
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).
This Security Advisory describes multiple distinct vulnerabilities in the WLCs, WiSMs, and the Cisco Catalyst 3750 Integrated WLCs. These vulnerabilities are independent of each other.
Denial of Service Vulnerabilities +--------------------------------
These vulnerabilities are documented in the following Cisco Bug ID and have been assigned the following Common Vulnerabilities and Exposures (CVE) identifiers:
-
CSCsq44516 - CVE-2009-0058
Web authentication is a Layer 3 security feature that causes the controller to drop IP traffic (except DHCP and DNS related packets) from a particular client until that client has correctly supplied a valid username and password. An attacker may use a vulnerability scanner to cause the device to stop servicing web authentication or cause a reload of the device. The following error messages may appear on the console during an active attack:
SshPmStMain/pm_st_main.c:1954/ ssh_pm_st_main_batch_addition_result: Failed to add rule to the engine: restoring old state SshEnginePmApiPm/engine_pm_api_pm.c:1896/ ssh_pme_enable_policy_lookup: Could not allocate message -
CSCsm82364 - CVE-2009-0059
An attacker may cause a device reload when sending a malformed post to the web authentication "login.html" page. The following error messages may appear on the WLC console during this attack:
Cisco Crash Handler Signal generated during a signal 11, count 193 Memory 0x14ef1e44 has been freed!Note: A crash file is not generated during this attack. Upon receiving these IP packets, the affected device may become unresponsive and require a reboot to recover.
Privilege Escalation Vulnerability +---------------------------------
A privilege escalation vulnerability exists only in WLC software version 4.2.173.0, and could allow a restricted user (i.e., Lobby Admin) to gain full administrative rights on the affected system.
Note: Wireless network users are not affected by this vulnerability.
This vulnerability is documented in Cisco Bug ID CSCsv62283 and has been assigned the Common Vulnerabilities and Exposures (CVE) identifier CVE-2009-0062.
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
- Certain packets may cause WebAuth services to hang or reload the device (CSCsq44516)
CVSS Base Score - 6.1 Access Vector - Adjacent Network Access Complexity - Low Authentication - None Confidentiality Impact - None Integrity Impact - None Availability Impact - Complete
CVSS Temporal Score - 5.0 Exploitability - Functional Remediation Level - Official-Fix Report Confidence - Confirmed
- Crash handling invalid post for webauth (CSCsq44516)
CVSS Base Score - 6.1 Access Vector - Adjacent Network Access Complexity - Low Authentication - None Confidentiality Impact - None Integrity Impact - None Availability Impact - Complete
CVSS Temporal Score - 5.0 Exploitability - Functional Remediation Level - Official-Fix Report Confidence - Confirmed
- WLC TSEC driver may hang or crash the device (CSCso60979)
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
- Local Management Users may obtain full admin rights (CSCsv62283)
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 - 7.8 Exploitability - Functional Remediation Level - Official-Fix Report Confidence - Confirmed
Impact
Successful exploitation of the denial of service vulnerabilities may cause the affected device to hang or reload. Repeated exploitation could result in a sustained DoS condition. The privilege escalation vulnerability may allow an authenticated user to obtain full administrative rights on the affected system.
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 | Affected | First | Recommended | | / Bug ID | Release | Fixed | Release | | | | Version | | |---------------+----------+------------+-------------| | | 4.1 | Migrate to | 4.2.176.0 | | | | 4.2 | | | |----------+------------+-------------| | | 4.2 | 4.2.173.0 | 4.2.176.0 | | |----------+------------+-------------| | | 5.0 | Migrate to | 5.2.157.0 | | CSCsq44516 | | 5.2 | | | |----------+------------+-------------| | | 5.1 | Contact | Contact TAC | | | | TAC | | | |----------+------------+-------------| | | 5.2 | Not | Not | | | | vulnerable | Vulnerable | |---------------+----------+------------+-------------| | | 4.1 | Migrate to | 4.2.176.0 | | | | 4.2 | | | |----------+------------+-------------| | | 4.2 | 4.2.112.0 | 4.2.176.0 | | |----------+------------+-------------| | CSCsm82364 | 5.0 | Not | Not | | | | vulnerable | vulnerable | | |----------+------------+-------------| | | 5.1 | Not | Not | | | | vulnerable | vulnerable | | |----------+------------+-------------| | | 5.2 | 5.2.157.0 | 5.2.157.0 | |---------------+----------+------------+-------------| | | 4.1 | Migrate to | 4.2.176.0 | | | | 4.2 | | | |----------+------------+-------------| | | 4.2 | 4.2.117.0 | 4.2.176.0 | | |----------+------------+-------------| | | 5.0 | Migrate to | 5.2.157.0 | | CSCso60979 | | 5.2 | | | |----------+------------+-------------| | | 5.1 | Not | Not | | | | vulnerable | vulnerable | | |----------+------------+-------------| | | 5.2 | Not | Not | | | | vulnerable | vulnerable | |---------------+----------+------------+-------------| | | 4.1 | Not | Not | | | | vulnerable | vulnerable | | |----------+------------+-------------| | | 4.2 | 4.2.174.0 | 4.2.176.0 | | |----------+------------+-------------| | | 5.0 | Not | Not | | CSCsv62283 | | Vulnerable | Vulnerable | | |----------+------------+-------------| | | 5.1 | Not | Not | | | | Vulnerable | vulnerable | | |----------+------------+-------------| | | 5.2 | Not | Not | | | | Vulnerable | vulnerable | +-----------------------------------------------------+
Note: Customers running 4.1M WLC mesh code, using Cisco Wireless 1510 Access Points (APs) are recommended to migrate to release 4.2.176.0. Customers running 4.1 mesh code, using Cisco Wireless 1520 APs are recommended to migrate to 5.2 or later.
Workarounds
There are no workarounds for any of these vulnerabilities.
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/products/prod_warranties_item09186a008088e31f.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. These vulnerabilities were found during internal testing and during the resolution of customer support cases.
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-20090204-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 | 2009-February-04 | 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 2008 - 2009 Cisco Systems, Inc. All rights reserved. +--------------------------------------------------------------------
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Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
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"data": "Unspecified vulnerability in the Wireless LAN Controller (WLC) TSEC driver in the Cisco 4400 WLC, Cisco Catalyst 6500 and 7600 Wireless Services Module (WiSM), and Cisco Catalyst 3750 Integrated Wireless LAN Controller with software 4.x before 4.2.176.0 and 5.x before 5.1 allows remote attackers to cause a denial of service (device crash or hang) via unknown IP packets. Multiple Cisco Wireless LAN Controllers are prone to these remote vulnerabilities:\n- Multiple denial-of-service vulnerabilities\n- A remote privilege-escalation vulnerability\nRemote attackers can exploit these issues to gain administrative rights on an affected device or crash the device, denying service to legitimate users. \n\nSOLUTION:\nUpdate to a fixed version. Please see vendor advisory for a patch\nmatrix. \n\nPROVIDED AND/OR DISCOVERED BY:\nReported by the vendor. \n\nORIGINAL ADVISORY:\nhttp://www.cisco.com/warp/public/707/cisco-sa-20090204-wlc.shtml\n\n----------------------------------------------------------------------\n\nAbout:\nThis Advisory was delivered by Secunia as a free service to help\neverybody 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. This security\nadvisory outlines details of the following vulnerabilities:\n\n * Denial of Service Vulnerabilities (total of three)\n * Privilege Escalation Vulnerability\n\nThese vulnerabilities are independent of each other. \n\nCisco has released free software updates that address these\nvulnerabilities. \n\nThere are no workarounds available for these vulnerabilities. \n\nThis advisory is posted at\nhttp://www.cisco.com/warp/public/707/cisco-sa-20090204-wlc.shtml. \n\nAffected Products\n=================\n\nVulnerable Products\n+------------------\n\nThe following products and software versions are affected for each\nvulnerability. \n\nDenial of Service Vulnerabilities\n+--------------------------------\n\nTwo denial of service (DoS) vulnerabilities affect software versions\n4.2 and later. \n\nA third DoS vulnerability affects software versions 4.1 and later. \n\nPrivilege Escalation Vulnerability\n+---------------------------------\n\nOnly WLC software version 4.2.173.0 is affected by this vulnerability. \n\nDetermination of Software Versions\n+---------------------------------\n\nTo determine the WLC version that is running in a given environment, use\none 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. \n * From the command-line interface, type \"show sysinfo\" and note the\n Product Version, as shown in the following example:\n\n (Cisco Controller) \u003eshow 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\nUse the \"show wism module \u003cmodule number\u003e controller 1 status\" command\non a Cisco Catalyst 6500 Series/7600 Series switch if using a WiSM, and\nnote the Software Version, as demonstrated in the following example:\n\n Router#show wism mod 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\nNo other Cisco products are currently known to be affected by these\nvulnerabilities. \n\nThese devices communicate with Controller-based Access Points over any\nLayer 2 (Ethernet) or Layer 3 (IP) infrastructure using the Lightweight\nAccess Point Protocol (LWAPP). \n\nThis Security Advisory describes multiple distinct vulnerabilities in\nthe WLCs, WiSMs, and the Cisco Catalyst 3750 Integrated WLCs. These\nvulnerabilities are independent of each other. \n\nDenial of Service Vulnerabilities\n+--------------------------------\n\nThese vulnerabilities are documented in the following Cisco Bug ID and\nhave been assigned the following Common Vulnerabilities and Exposures\n(CVE) identifiers:\n\n * CSCsq44516 - CVE-2009-0058\n\n Web authentication is a Layer 3 security feature that causes the\n controller to drop IP traffic (except DHCP and DNS related packets)\n from a particular client until that client has correctly supplied\n a valid username and password. An attacker may use a vulnerability\n scanner to cause the device to stop servicing web authentication\n or cause a reload of the device. The following error messages may\n appear on the console during an active attack:\n\n SshPmStMain/pm_st_main.c:1954/\n ssh_pm_st_main_batch_addition_result:\n Failed to add rule to the engine:\n restoring old state\n SshEnginePmApiPm/engine_pm_api_pm.c:1896/\n ssh_pme_enable_policy_lookup:\n Could not allocate message\n\n * CSCsm82364 - CVE-2009-0059\n\n An attacker may cause a device reload when sending a malformed post\n to the web authentication \"login.html\" page. The following error\n messages may appear on the WLC console during this attack:\n\n Cisco Crash Handler\n Signal generated during a signal 11,\n count 193\n Memory 0x14ef1e44 has been freed!\n\n Note: A crash file is not generated during this attack. Upon receiving these IP packets, the\n affected device may become unresponsive and require a reboot to\n recover. \n\nPrivilege Escalation Vulnerability\n+---------------------------------\n\nA privilege escalation vulnerability exists only in WLC software version\n4.2.173.0, and could allow a restricted user (i.e., Lobby Admin) to gain\nfull administrative rights on the affected system. \n\nNote: Wireless network users are not affected by this vulnerability. \n\nThis vulnerability is documented in Cisco Bug ID CSCsv62283 and has\nbeen assigned the Common Vulnerabilities and Exposures (CVE) identifier\nCVE-2009-0062. \n\nVulnerability Scoring Details\n+----------------------------\n\nCisco has provided scores for the vulnerabilities in this advisory based\non the Common Vulnerability Scoring System (CVSS). The CVSS scoring in\nthis Security Advisory is done in accordance with CVSS version 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 the\nvulnerability in individual networks. \n\nCisco has provided an FAQ to answer additional questions regarding\nCVSS at\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* Certain packets may cause WebAuth services to hang or reload the\ndevice (CSCsq44516)\n\nCVSS Base Score - 6.1\n Access Vector - Adjacent Network\n Access Complexity - Low\n Authentication - None\n Confidentiality Impact - None\n Integrity Impact - None\n Availability Impact - Complete\n\nCVSS Temporal Score - 5.0\n Exploitability - Functional\n Remediation Level - Official-Fix\n Report Confidence - Confirmed\n\n* Crash handling invalid post for webauth (CSCsq44516)\n\nCVSS Base Score - 6.1\n Access Vector - Adjacent Network\n Access Complexity - Low\n Authentication - None\n Confidentiality Impact - None\n Integrity Impact - None\n Availability Impact - Complete\n\nCVSS Temporal Score - 5.0\n Exploitability - Functional\n Remediation Level - Official-Fix\n Report Confidence - Confirmed\n\n* WLC TSEC driver may hang or crash the device (CSCso60979)\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* Local Management Users may obtain full admin rights (CSCsv62283)\n\nCVSS Base Score - 9.0\n Access Vector - Network\n Access Complexity - Low\n Authentication - Single\n Confidentiality Impact - Complete\n Integrity Impact - Complete\n Availability Impact - Complete\n\nCVSS Temporal Score - 7.8\n Exploitability - Functional\n Remediation Level - Official-Fix\n Report Confidence - Confirmed\n\nImpact\n======\n\nSuccessful exploitation of the denial of service vulnerabilities may\ncause the affected device to hang or reload. Repeated exploitation\ncould result in a sustained DoS condition. The privilege escalation\nvulnerability may allow an authenticated user to obtain full\nadministrative rights on the affected system. \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\n+-----------------------------------------------------+\n| Vulnerability | Affected | First | Recommended |\n| / Bug ID | Release | Fixed | Release |\n| | | Version | |\n|---------------+----------+------------+-------------|\n| | 4.1 | Migrate to | 4.2.176.0 |\n| | | 4.2 | |\n| |----------+------------+-------------|\n| | 4.2 | 4.2.173.0 | 4.2.176.0 |\n| |----------+------------+-------------|\n| | 5.0 | Migrate to | 5.2.157.0 |\n| CSCsq44516 | | 5.2 | |\n| |----------+------------+-------------|\n| | 5.1 | Contact | Contact TAC |\n| | | TAC | |\n| |----------+------------+-------------|\n| | 5.2 | Not | Not |\n| | | vulnerable | Vulnerable |\n|---------------+----------+------------+-------------|\n| | 4.1 | Migrate to | 4.2.176.0 |\n| | | 4.2 | |\n| |----------+------------+-------------|\n| | 4.2 | 4.2.112.0 | 4.2.176.0 |\n| |----------+------------+-------------|\n| CSCsm82364 | 5.0 | Not | Not |\n| | | vulnerable | vulnerable |\n| |----------+------------+-------------|\n| | 5.1 | Not | Not |\n| | | vulnerable | vulnerable |\n| |----------+------------+-------------|\n| | 5.2 | 5.2.157.0 | 5.2.157.0 |\n|---------------+----------+------------+-------------|\n| | 4.1 | Migrate to | 4.2.176.0 |\n| | | 4.2 | |\n| |----------+------------+-------------|\n| | 4.2 | 4.2.117.0 | 4.2.176.0 |\n| |----------+------------+-------------|\n| | 5.0 | Migrate to | 5.2.157.0 |\n| CSCso60979 | | 5.2 | |\n| |----------+------------+-------------|\n| | 5.1 | Not | Not |\n| | | vulnerable | vulnerable |\n| |----------+------------+-------------|\n| | 5.2 | Not | Not |\n| | | vulnerable | vulnerable |\n|---------------+----------+------------+-------------|\n| | 4.1 | Not | Not |\n| | | vulnerable | vulnerable |\n| |----------+------------+-------------|\n| | 4.2 | 4.2.174.0 | 4.2.176.0 |\n| |----------+------------+-------------|\n| | 5.0 | Not | Not |\n| CSCsv62283 | | Vulnerable | Vulnerable |\n| |----------+------------+-------------|\n| | 5.1 | Not | Not |\n| | | Vulnerable | vulnerable |\n| |----------+------------+-------------|\n| | 5.2 | Not | Not |\n| | | Vulnerable | vulnerable |\n+-----------------------------------------------------+\n\nNote: Customers running 4.1M WLC mesh code, using Cisco Wireless 1510\nAccess Points (APs) are recommended to migrate to release 4.2.176.0. \nCustomers running 4.1 mesh code, using Cisco Wireless 1520 APs are\nrecommended to migrate to 5.2 or later. \n\nWorkarounds\n===========\n\nThere are no workarounds for any of these vulnerabilities. \n\nObtaining Fixed Software\n========================\n\nCisco has released free software updates that address these\nvulnerabilities. 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/products/prod_warranties_item09186a008088e31f.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 software\nupgrades. \n\nCustomers with Service Contracts\n+-------------------------------\n\nCustomers with contracts should obtain upgraded software through their\nregular update channels. For most customers, this means that upgrades\nshould be obtained through the Software Center on Cisco\u0027s worldwide\nwebsite at http://www.cisco.com. \n\nCustomers using Third Party Support Organizations\n+------------------------------------------------\n\nCustomers whose Cisco products are provided or maintained through prior\nor existing agreements with third-party support organizations, such\nas Cisco Partners, authorized resellers, or service providers should\ncontact that support organization for guidance and assistance with the\nappropriate 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 fix\nis the most appropriate for use in the intended network before it is\ndeployed. \n\nCustomers without Service Contracts\n+----------------------------------\n\nCustomers who purchase direct from Cisco but do not hold a Cisco service\ncontract, and customers who purchase through third-party vendors but are\nunsuccessful in obtaining fixed software through their point of sale\nshould acquire upgrades by contacting the Cisco Technical Assistance\nCenter (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 a\nfree upgrade. Free upgrades for non-contract customers must be requested\nthrough the TAC. \n\nRefer to http://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 vulnerabilities described in this advisory. These\nvulnerabilities were found during internal testing and during the\nresolution of customer support cases. \n\nStatus of this Notice: FINAL\n============================\n\nTHIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS AND DOES NOT IMPLY\nANY KIND 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 omits\nthe distribution URL in the following section is an uncontrolled copy,\nand may lack important information or contain factual 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-20090204-wlc.shtml\n\nIn addition to worldwide web posting, a text version of this notice is\nclear-signed with the Cisco PSIRT PGP key and is posted to the following\ne-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 mailing\nlists or newsgroups. Users concerned about this problem are encouraged\nto check the above URL for any updates. \n\nRevision History\n================\n\n+------------------------------------------------------------+\n| Revision 1.0 | 2009-February-04 | Initial public release. |\n+------------------------------------------------------------+\n\nCisco Security Procedures\n=========================\n\nComplete information on reporting security vulnerabilities in Cisco\nproducts, obtaining assistance with security incidents, and\nregistering to receive security information from Cisco, is available\non Cisco\u0027s worldwide website at\nhttp://www.cisco.com/en/US/products/products_security_vulnerability_policy.html. \nThis includes instructions for press inquiries regarding Cisco security\nnotices. All Cisco security advisories are available at\nhttp://www.cisco.com/go/psirt. \n\n+--------------------------------------------------------------------\nCopyright 2008 - 2009 Cisco Systems, Inc. All rights reserved. \n+--------------------------------------------------------------------\n\nUpdated: Feb 04, 2009 Document ID: 108336\n-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG v1.4.9 (GNU/Linux)\n\niEYEARECAAYFAkmJxSEACgkQ86n/Gc8U/uB4XQCfadDoSJbA5K+0GujUY02Rj1Ua\nxnUAn0nc+bNHTzHwD298ai3ZW/JWKWaU\n=waFY\n-----END PGP SIGNATURE-----\n\n_______________________________________________\nFull-Disclosure - We believe in it. \nCharter: http://lists.grok.org.uk/full-disclosure-charter.html\nHosted and sponsored by Secunia - http://secunia.com/\n",
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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.
- 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.