var-200804-0273
Vulnerability from variot
The Disaster Recovery Framework (DRF) master server in Cisco Unified Communications products, including Unified Communications Manager (CUCM) 5.x and 6.x, Unified Presence 1.x and 6.x, Emergency Responder 2.x, and Mobility Manager 2.x, does not require authentication for requests received from the network, which allows remote attackers to execute arbitrary code via unspecified vectors. network Requests received from do not require authentication, which could allow a remote attacker to execute arbitrary code via an unknown route.Please refer to the “Overview” for the impact of this vulnerability. Multiple Cisco Unified Communications products are prone to a remote command-execution vulnerability. This issue occurs in the Disaster Recovery Framework. An attacker can exploit this issue to execute arbitrary commands with full administrative privileges. ----------------------------------------------------------------------
A new version (0.9.0.0 - Release Candidate 1) of the free Secunia PSI has been released. The new version includes many new and advanced features, which makes it even easier to stay patched.
Successful exploitation allows execution of arbitrary commands.
PROVIDED AND/OR DISCOVERED BY: The vendor credits VoIPshield Systems.
ORIGINAL ADVISORY: http://www.cisco.com/warp/public/707/cisco-sa-20080403-drf.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. There is a workaround for this vulnerability.
Cisco has released free software updates that address this vulnerability. DRF allows administrators to backup and restore a system configuration to a local tape drive or remote server.
The DRF Master server is responsible for performing backup and restoration requests. A remote, unauthenticated user can connect to the DRF Master server and may be able to perform any DRF-related tasks. These tasks include:
- Modifying or deleting a scheduled backup
- Copying a system backup to a remote, user-specified server
- Restoring a user-specified configuration from a remote server
- Execute arbitrary operating system commands
An attacker could exploit this vulnerability to cause a denial of service condition, obtain sensitive configuration information, overwrite configuration parameters, or execute arbitrary commands with full administrative privileges. 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
CSCso53771 - Unauthenticated Access to Disaster Recovery Framework
CVSS Base Score - 10 Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Complete Integrity Impact: Complete Availability Impact: Complete CVSS Temporal Score - 8.3 Exploitability: Functional Remediation Level: Official-Fix Report Confidence: Confirmed
Impact
Successful exploitation of this vulnerability could allow a remote, unauthenticated attacker to cause a denial of service condition, obtain sensitive configuration information, overwrite configuration parameters or execute arbitrary commands with full administrative privileges.
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.
Fixed software is available for the following Cisco products. This advisory will be updated as additional fixes are available. The filename is ciscocm.CSCso53771.security.patch.cop and can be downloaded at the following link:
http://www.cisco.com/cgi-bin/tablebuild.pl/callmgr-utilpage?psrtdcat20e2
Please consult the COP file Readme for installation instructions.
Workarounds
Administrators can mitigate this vulnerability by disabling the DRF Master service. However, administrators should exercise caution when disabling the DRF Master service, as system backups will not occur while the service is stopped. Administrators are encouraged to perform a complete system backup before employing this workaround and use care when making configuration changes until the DRF Master service can be safely re-enabled.
Instructions for disabling the DRF Master service on Cisco Unified Communications Manager systems are available at the following link:
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/service/5_0_1/ccmsrva/sasrvact.html#wp1048220
The vulnerability may be mitigated by restricting access to the DRF Master service (TCP port 4040). For a Cisco Unified Communications Manager cluster, access to the port should be restricted to valid cluster nodes.
Additional mitigation techniques that can be deployed on Cisco devices within the network are available in the Cisco Applied Mitigation Bulletin companion document for this advisory:
http://www.cisco.com/warp/public/707/cisco-amb-20080403-drf.shtml
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/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 malicious use of the vulnerability described in this advisory.
This vulnerability was reported to Cisco by VoIPshield Systems.
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-20080403-drf.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-April-03 | 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.
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"data": "The Disaster Recovery Framework (DRF) master server in Cisco Unified Communications products, including Unified Communications Manager (CUCM) 5.x and 6.x, Unified Presence 1.x and 6.x, Emergency Responder 2.x, and Mobility Manager 2.x, does not require authentication for requests received from the network, which allows remote attackers to execute arbitrary code via unspecified vectors. network Requests received from do not require authentication, which could allow a remote attacker to execute arbitrary code via an unknown route.Please refer to the \u201cOverview\u201d for the impact of this vulnerability. Multiple Cisco Unified Communications products are prone to a remote command-execution vulnerability. This issue occurs in the Disaster Recovery Framework. \nAn attacker can exploit this issue to execute arbitrary commands with full administrative privileges. ----------------------------------------------------------------------\n\nA new version (0.9.0.0 - Release Candidate 1) of the free Secunia PSI\nhas been released. The new version includes many new and advanced\nfeatures, which makes it even easier to stay patched. \n\nSuccessful exploitation allows execution of arbitrary commands. \n\nPROVIDED AND/OR DISCOVERED BY:\nThe vendor credits VoIPshield Systems. \n\nORIGINAL ADVISORY:\nhttp://www.cisco.com/warp/public/707/cisco-sa-20080403-drf.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. There is a\nworkaround for this vulnerability. \n\nCisco has released free software updates that address this\nvulnerability. DRF allows administrators to backup and restore a system\nconfiguration to a local tape drive or remote server. \n\nThe DRF Master server is responsible for performing backup and\nrestoration requests. A remote, unauthenticated user can connect\nto the DRF Master server and may be able to perform any DRF-related\ntasks. These tasks include:\n\n * Modifying or deleting a scheduled backup\n * Copying a system backup to a remote, user-specified server\n * Restoring a user-specified configuration from a remote server\n * Execute arbitrary operating system commands\n\nAn attacker could exploit this vulnerability to cause a denial of\nservice condition, obtain sensitive configuration information,\noverwrite configuration parameters, or execute arbitrary commands\nwith full administrative privileges. 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\nCSCso53771 - Unauthenticated Access to Disaster Recovery Framework\n\nCVSS Base Score - 10\n Access Vector: Network\n Access Complexity: Low\n Authentication: None\n Confidentiality Impact: Complete\n Integrity Impact: Complete\n Availability Impact: Complete\nCVSS Temporal Score - 8.3\n Exploitability: Functional\n Remediation Level: Official-Fix\n Report Confidence: Confirmed\n\nImpact\n======\n\nSuccessful exploitation of this vulnerability could allow a remote,\nunauthenticated attacker to cause a denial of service condition,\nobtain sensitive configuration information, overwrite configuration\nparameters or execute arbitrary commands with full administrative\nprivileges. \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. \n\nFixed software is available for the following Cisco products. This\nadvisory will be updated as additional fixes are available. The filename is\nciscocm.CSCso53771.security.patch.cop and can be downloaded at the\nfollowing link:\n\nhttp://www.cisco.com/cgi-bin/tablebuild.pl/callmgr-utilpage?psrtdcat20e2\n\nPlease consult the COP file Readme for installation instructions. \n\nWorkarounds\n===========\n\nAdministrators can mitigate this vulnerability by disabling the DRF\nMaster service. However, administrators should exercise caution when\ndisabling the DRF Master service, as system backups will not occur\nwhile the service is stopped. Administrators are encouraged to\nperform a complete system backup before employing this workaround and\nuse care when making configuration changes until the DRF Master\nservice can be safely re-enabled. \n\nInstructions for disabling the DRF Master service on Cisco Unified\nCommunications Manager systems are available at the following link:\n\nhttp://www.cisco.com/en/US/docs/voice_ip_comm/cucm/service/5_0_1/ccmsrva/sasrvact.html#wp1048220\n\nThe vulnerability may be mitigated by restricting access to the DRF\nMaster service (TCP port 4040). For a Cisco Unified Communications\nManager cluster, access to the port should be restricted to valid\ncluster nodes. \n\nAdditional mitigation techniques that can be deployed on Cisco\ndevices within the network are available in the Cisco Applied\nMitigation Bulletin companion document for this advisory:\n\nhttp://www.cisco.com/warp/public/707/cisco-amb-20080403-drf.shtml\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 sets\nthey have purchased. By installing, downloading, accessing or\notherwise using such software upgrades, customers agree to be bound by\nthe 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 malicious use of the\nvulnerability described in this advisory. \n\nThis vulnerability was reported to Cisco by VoIPshield Systems. \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-20080403-drf.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-April-03 | 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\nsecurity notices. All Cisco security advisories are available at\nhttp://www.cisco.com/go/psirt. \n\n- ---------------------------------------------------------------------\n-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG v1.4.5 (Darwin)\n\niD8DBQFH9P4/86n/Gc8U/uARAgP1AKCYJS+NnmfcbOa6X/bOGX//WtZ9bQCdE8eQ\nujmH9JrSK7JatP5eShSBxvQ=\n=uxdK\n-----END PGP SIGNATURE-----\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.