var-200805-0206
Vulnerability from variot

Memory leak in the Certificate Trust List (CTL) Provider service in Cisco Unified Communications Manager (CUCM) 5.x before 5.1(3) allows remote attackers to cause a denial of service (memory consumption and service interruption) via a series of malformed TCP packets, as demonstrated by TCPFUZZ, aka Bug ID CSCsj80609. TCPFUZZ A series of deliberately created, as demonstrated by TCP Service disruption via packets (DoS) There is a possibility of being put into a state. The problem is Bug ID : CSCsj80609 It is a problem.Please refer to the “Overview” for the impact of this vulnerability. These issues affect the following components: Certificate Trust List (CTL) Provider Certificate Authority Proxy Function (CAPF) Session Initiation Protocol (SIP) Simple Network Management Protocol (SNMP) Trap An attacker can exploit these issues to cause denial-of-service conditions in the affected application. ----------------------------------------------------------------------

Secunia Network Software Inspector 2.0 (NSI) - Public Beta

The Public Beta has ended. Thanks to all that participated.

This vulnerability is reported in version 5.x.

2) Another error within the CTL Provider service can be exploited to consume large amounts of memory resources via a series of specially crafted packets sent to default port 2444/TCP.

This vulnerability is reported in versions 5.x and 6.x.

This vulnerability is reported in versions 4.1, 4.2, and 4.3.

This vulnerability is reported in versions 5.x and 6.x.

This vulnerability is reported in versions 4.1, 4.2, 4.3, 5.x, and 6.x.

SOLUTION: Update to the fixed versions.

PROVIDED AND/OR DISCOVERED BY: Reported by the vendor.

ORIGINAL ADVISORY: http://www.cisco.com/warp/public/707/cisco-sa-20080514-cucmdos.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/secunia_security_advisories/

Definitions: (Criticality, Where etc.) http://secunia.com/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. These vulnerabilities were discovered internally by Cisco. Workarounds that mitigate some of these vulnerabilities are available.

This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20080514-cucmdos.shtml. The software version can also be determined by running the command show version active via the command line interface (CLI). No other Cisco products are currently known to be affected by these vulnerabilities.

Details

Cisco Unified Communications Manager is the call processing component of the Cisco IP Telephony solution that extends enterprise telephony features and functions to packet telephony network devices, such as IP phones, media processing devices, voice-over-IP (VoIP) gateways, and multimedia applications. The CTL Provider service listens by default on TCP port 2444 and is user configurable. The CTL Provider service is enabled by default. There is a workaround for this vulnerability. The CTL Provider service listens by default on TCP port 2444 and is user configurable. There is a workaround for this vulnerability. The CAPF service listens by default on TCP port 3804 and is user configurable. The CAPF service is disabled by default. There is a workaround for this vulnerability.

SIP-Related Vulnerabilities

Cisco Unified Communications Manager versions 5.x and 6.x contain a vulnerability in the handling of malformed SIP JOIN messages that may result in a DoS condition. There is no workaround for this vulnerability. There is no workaround for this vulnerability. There is no workaround for this vulnerability. The SNMP Trap Agent service listens by default on UDP port 61441. There is a workaround for this vulnerability.

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

  • CSCsj80609 - Memory Leak Due to TCPFUZZ on Port 2444 (CTLProvider)

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

  • CSCsi98433 - CTLProvider leaks memory in certain scenarios

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

  • CSCsk46770 - CAPF crash with network traffic

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

  • CSCsi48115 - CM 6.1 stops providing service when receiving malformed Join sip-header

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

  • CSCsk46944 - CCM service restarts on receiving a valid SIP Packet

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

  • CSCsl22355 - CCM does not validate SIP URL input properly

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

  • CSCsj24113 - CCM Process Coredump/Restart During ISIC Execution Against Port 61441

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 the vulnerabilities in this advisory may result in the interruption of voice services.

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. It can downloaded at the following link:

http://www.cisco.com/pcgi-bin/tablebuild.pl/callmgr-61?psrtdcat20e2

Workarounds

CTL Provider Related Vulnerabilities

To mitigate against the CTL Provider service vulnerabilities (CSCsj80609 and CSCsi98433), system administrators can disable the CTL Provider service if it is not needed. The CTL Provider service is controlled via the Cisco CTL Provider menu selection.

It is possible to mitigate the CTL Provider vulnerabilities by implementing filtering on screening devices.

Note: It is possible to change the default port of the CTL Provider service (TCP port 2444). If changed, filtering should be based on the values used.

CAPF Related Vulnerability

To mitigate against the CAPF service vulnerability (CSCsk46770), system administrators can disable the CAPF service if it is not needed. If phones are not configured to use certificates, then the CAPF service can be disabled. The CAPF service is controlled by the Cisco Certificate Authority Proxy Function menu selection.

It is possible to mitigate the CAPF vulnerability by implementing filtering on screening devices. If the CAPF service is enabled, permit access to TCP port 3804 only from networks that contain IP phone devices needing to utilize the CAPF service.

SIP-Related Vulnerabilities

It is possible to mitigate the SIP vulnerabilities by implementing filtering on screening devices.

SNMP Trap-Related Vulnerability

To mitigate against the SNMP Trap service vulnerability (CSCsj24113), system administrators can disable the SNMP Trap service. To disable the Windows SNMP service, navigate to Start > Programs > Administrative Tools > Services, and stop the SNMP Service.

Note: The SNMP Trap Service listed in the Windows Service configuration screen is not applicable to this vulnerability and disabling it does not provide any benefit as a workaround for this vulnerability. For Cisco Unified Communications Manager 5.x and 6.x systems, the SNMP Trap service is controlled via the Cisco CallManager SNMP Service selection on the Control Center Feature Services screen.

It is possible to mitigate the SNMP Trap service vulnerability by implementing filtering on screening devices. Permit access to UDP port 61441 only from management systems that need access to the SNMP Trap service. 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.

ustomers 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/warp/public/687/Directory/DirTAC.shtml 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 discovered internally by Cisco.

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-20080514-cucmdos.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-teams@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 | | Initial | | 1.0 | 2008-May-14 | 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. -----BEGIN PGP SIGNATURE-----

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Show details on source website


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    "data": "Memory leak in the Certificate Trust List (CTL) Provider service in Cisco Unified Communications Manager (CUCM) 5.x before 5.1(3) allows remote attackers to cause a denial of service (memory consumption and service interruption) via a series of malformed TCP packets, as demonstrated by TCPFUZZ, aka Bug ID CSCsj80609. TCPFUZZ A series of deliberately created, as demonstrated by TCP Service disruption via packets (DoS) There is a possibility of being put into a state. The problem is Bug ID : CSCsj80609 It is a problem.Please refer to the \u201cOverview\u201d for the impact of this vulnerability. \nThese issues affect the following components:\nCertificate Trust List (CTL) Provider\nCertificate Authority Proxy Function (CAPF)\nSession Initiation Protocol (SIP)\nSimple Network Management Protocol (SNMP) Trap\nAn attacker can exploit these issues to cause denial-of-service conditions in the affected application. ----------------------------------------------------------------------\n\nSecunia Network Software Inspector 2.0 (NSI) - Public Beta\n\nThe Public Beta has ended. Thanks to all that participated. \n\nThis vulnerability is reported in version 5.x. \n\n2) Another error within the CTL Provider service can be exploited to\nconsume large amounts of memory resources via a series of specially\ncrafted packets sent to default port 2444/TCP. \n\nThis vulnerability is reported in versions 5.x and 6.x. \n\nThis vulnerability is reported in versions 4.1, 4.2, and 4.3. \n\nThis vulnerability is reported in versions 5.x and 6.x. \n\nThis vulnerability is reported in versions 4.1, 4.2, 4.3, 5.x, and\n6.x. \n\nSOLUTION:\nUpdate to the fixed versions. \n\nPROVIDED AND/OR DISCOVERED BY:\nReported by the vendor. \n\nORIGINAL ADVISORY:\nhttp://www.cisco.com/warp/public/707/cisco-sa-20080514-cucmdos.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/secunia_security_advisories/\n\nDefinitions: (Criticality, Where etc.)\nhttp://secunia.com/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. These\nvulnerabilities were discovered internally by Cisco. Workarounds that mitigate some of these\nvulnerabilities are available. \n\nThis advisory is posted at\nhttp://www.cisco.com/warp/public/707/cisco-sa-20080514-cucmdos.shtml. The software version\ncan also be determined by running the command show version active via\nthe command line interface (CLI). No other Cisco products are currently known to be\naffected by these vulnerabilities. \n\nDetails\n=======\n\nCisco Unified Communications Manager is the call processing component\nof the Cisco IP Telephony solution that extends enterprise telephony\nfeatures and functions to packet telephony network devices, such as\nIP phones, media processing devices, voice-over-IP (VoIP) gateways,\nand multimedia applications. The CTL Provider service listens\nby default on TCP port 2444 and is user configurable. The CTL\nProvider service is enabled by default. There is a workaround for\nthis vulnerability. The CTL Provider service listens by default on\nTCP port 2444 and is user configurable. There is a workaround for\nthis vulnerability. The CAPF service listens by default on TCP port 3804 and\nis user configurable. The CAPF service is disabled by default. There\nis a workaround for this vulnerability. \n\nSIP-Related Vulnerabilities\n\nCisco Unified Communications Manager versions 5.x and 6.x contain a\nvulnerability in the handling of malformed SIP JOIN messages that may\nresult in a DoS condition. There is no workaround for this\nvulnerability. There is no workaround for\nthis vulnerability. There is no workaround for\nthis vulnerability. The SNMP Trap Agent service listens by default on\nUDP port 61441. There is a workaround for this vulnerability. \n\nVulnerability Scoring Details\n=============================\n\nCisco has provided scores for the vulnerabilities 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\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* CSCsj80609 - Memory Leak Due to TCPFUZZ on Port 2444 (CTLProvider)\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* CSCsi98433 - CTLProvider leaks memory in certain scenarios\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* CSCsk46770 - CAPF crash with network traffic\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* CSCsi48115 - CM 6.1 stops providing service when receiving malformed Join sip-header\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* CSCsk46944 - CCM service restarts on receiving a valid SIP Packet\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* CSCsl22355 - CCM does not validate SIP URL input properly\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* CSCsj24113 - CCM Process Coredump/Restart During ISIC Execution Against Port 61441 \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\nImpact\n======\n\nSuccessful exploitation of the vulnerabilities in this advisory may\nresult in the interruption of voice services. \n\nSoftware Versions and Fixes\n===========================\n\nWhen considering software upgrades, also consult\nhttp://www.cisco.com/go/psirt and any subsequent advisories to\ndetermine exposure 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. It can downloaded at the\nfollowing link:\n\nhttp://www.cisco.com/pcgi-bin/tablebuild.pl/callmgr-61?psrtdcat20e2\n\nWorkarounds\n===========\n\nCTL Provider Related Vulnerabilities\n\nTo mitigate against the CTL Provider service vulnerabilities\n(CSCsj80609 and CSCsi98433), system administrators can disable the\nCTL Provider service if it is not needed. The CTL Provider service is controlled via the Cisco CTL\nProvider menu selection. \n\nIt is possible to mitigate the CTL Provider vulnerabilities by\nimplementing filtering on screening devices. \n\nNote:  It is possible to change the default port of the CTL Provider\nservice (TCP port 2444). If changed, filtering should be based on the\nvalues used. \n\nCAPF Related Vulnerability\n\nTo mitigate against the CAPF service vulnerability (CSCsk46770),\nsystem administrators can disable the CAPF service if it is not\nneeded. If phones are not\nconfigured to use certificates, then the CAPF service can be\ndisabled. The CAPF service is controlled by the Cisco Certificate\nAuthority Proxy Function menu selection. \n\nIt is possible to mitigate the CAPF vulnerability by implementing\nfiltering on screening devices. If the CAPF service is enabled,\npermit access to TCP port 3804 only from networks that contain IP\nphone devices needing to utilize the CAPF service. \n\nSIP-Related Vulnerabilities\n\nIt is possible to mitigate the SIP vulnerabilities by implementing\nfiltering on screening devices. \n\nSNMP Trap-Related Vulnerability\n\nTo mitigate against the SNMP Trap service vulnerability (CSCsj24113),\nsystem administrators can disable the SNMP Trap service. To disable the\nWindows SNMP service, navigate to Start \u003e Programs \u003e Administrative\nTools \u003e Services, and stop the SNMP Service. \n\nNote: The SNMP Trap Service listed in the Windows Service\nconfiguration screen is not applicable to this vulnerability and\ndisabling it does not provide any benefit as a workaround for this\nvulnerability. For Cisco Unified Communications Manager 5.x and 6.x\nsystems, the SNMP Trap service is controlled via the Cisco\nCallManager SNMP Service selection on the Control Center Feature\nServices screen. \n\nIt is possible to mitigate the SNMP Trap service vulnerability by\nimplementing filtering on screening devices. Permit access to UDP\nport 61441 only from management systems that need access to the SNMP\nTrap service. Prior to deploying software, customers should\nconsult their maintenance provider or check the software for feature\nset compatibility and known issues specific to their environment. \n\nustomers may only install and expect support for the feature sets\nthey have purchased. By installing, downloading, accessing or\notherwise using such software upgrades, customers agree to be bound\nby 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\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 http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml\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. \n\nThese vulnerabilities were discovered internally by Cisco. \n\nStatus of this Notice: FINAL\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-20080514-cucmdos.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-teams@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 |             | Initial      |\n| 1.0      | 2008-May-14 | public       |\n|          |             | 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 notices. \nAll Cisco security advisories are available at http://www.cisco.com/go/psirt. \n-----BEGIN PGP SIGNATURE-----\n\niD8DBQFIKw3c86n/Gc8U/uARAo4iAJ461QSdwp9yXivfv/yWe4Xlj2wNaACcD/nW\nGpnghuWFfH2gIjp6Yk6857c=\n=L6xn\n-----END PGP SIGNATURE-----\n",
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