var-200908-0258
Vulnerability from variot
Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 4.x, 5.x before 5.1(3g), 6.x before 6.1(4), 7.0 before 7.0(2a)su1, and 7.1 before 7.1(2) allows remote attackers to cause a denial of service (file-descriptor exhaustion and SCCP outage) via a flood of TCP packets, aka Bug ID CSCsx32236. Cisco Unified Communications Manager There is a service disruption (DoS) There is a vulnerability that becomes a condition. The problem is Bug IDs CSCsx32236 It is a problem.A large amount by a third party TCP Service disruption via packets (DoS) There is a possibility of being put into a state. An attacker can exploit these issues to cause denial-of-service conditions in the affected application. These issues are documented by these Cisco bug IDs: CSCsi46466 CSCsz40392 CSCsq22534 CSCsx32236 CSCsx23689. ----------------------------------------------------------------------
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SOLUTION: Update to version 5.1(3g) (reportedly available in early September 2009).
PROVIDED AND/OR DISCOVERED BY: Reported by the vendor.
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. The Session Initiation Protocol (SIP) and Skinny Client Control Protocol (SCCP) services are affected by these vulnerabilities. There are no workarounds for these vulnerabilities. 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, VoIP gateways, and multimedia applications. Each vulnerability is triggered by a malformed SIP message that could cause a critical process to fail, resulting in the disruption of voice services. All SIP ports (TCP 5060 and 5061, UDP 5060 and 5061) are affected by these vulnerabilities. To mitigate against this vulnerability, administrators are advised to restrict access to TCP and UDP port 5060 on vulnerable Cisco Unified Communications Manager 4.x systems that are configured to use SIP trunks with screening devices to valid SIP trunk end points.
The second SIP DoS vulnerability is documented in Cisco Bug ID CSCsz40392 and has been assigned the CVE identifier CVE-2009-2051. By establishing many TCP connections with a vulnerable system, an attacker could overwhelm the operating system table that is used to track network connections and prevent new connections from being established to system services. Any service that listens to a TCP port on a vulnerable system could be affected by this vulnerability, including SIP and SCCP. By flooding a vulnerable system with many TCP packets, an attacker could exhaust operating system file descriptors that cause the SIP port (TCP 5060 and 5061) and SCCP port (TCP 2000 and 2443) to close. This action could prevent new connections from being established to the SIP and SCCP services. SIP UDP (5060 and 5061) ports are not affected.
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
CSCsi46466 - CM 6.1 SDL router services dead when receiving abnormal
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
CSCsz40392 - CCM: Coredump in sipSafeStrlen from malicious INVITE
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
CSCsq22534 - IP_Conntrack Fills Up During TCP Flood Attack
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
CSCsx32236 - SCCP Port Closed in Response to FD Resource Exhaustion
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
CSCsx23689 - SIP Port Closed in Response to FD Resource Exhaustion
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 described in this advisory could 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. Administrators can mitigate the SCCP- and SIP-related vulnerabilities by implementing filtering on screening devices to permit access to TCP ports 2000 and 2443, and TCP and UDP ports 5060 and 5061 only from networks that need SCCP and SIP access to Cisco Unified Communications Manager servers.
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-20090826-cucm.shtml
Obtaining Fixed Software
Cisco has released free software updates for select Cisco Unified Communications Manager versions 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/docs/general/warranty/English/EU1KEN_.html
or as otherwise set forth at Cisco.com Downloads at:
http://www.cisco.com/public/sw-center/sw-usingswc.shtml
Do not contact psirt@cisco.com or security-alert@cisco.com for software upgrades. Customers who are concerned about the availability of fixed software for this vulnerability in these releases should contact the following email address:
cucm-august26-inquiry@cisco.com
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. The vulnerabilities were discovered 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-20090826-cucm.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 | | Initial | | 1.0 | 2009-August-26 | 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:
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"data": "Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 4.x, 5.x before 5.1(3g), 6.x before 6.1(4), 7.0 before 7.0(2a)su1, and 7.1 before 7.1(2) allows remote attackers to cause a denial of service (file-descriptor exhaustion and SCCP outage) via a flood of TCP packets, aka Bug ID CSCsx32236. Cisco Unified Communications Manager There is a service disruption (DoS) There is a vulnerability that becomes a condition. The problem is Bug IDs CSCsx32236 It is a problem.A large amount by a third party TCP Service disruption via packets (DoS) There is a possibility of being put into a state. \nAn attacker can exploit these issues to cause denial-of-service conditions in the affected application. \nThese issues are documented by these Cisco bug IDs:\nCSCsi46466\nCSCsz40392\nCSCsq22534\nCSCsx32236\nCSCsx23689. ----------------------------------------------------------------------\n\nDo you have VARM strategy implemented?\n\n(Vulnerability Assessment Remediation Management) \n\nIf not, then implement it through the most reliable vulnerability\nintelligence source on the market. \n\nImplement it through Secunia. \n\nSOLUTION:\nUpdate to version 5.1(3g) (reportedly available in early September\n2009). \n\nPROVIDED AND/OR DISCOVERED BY:\nReported by the vendor. \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. \n\n----------------------------------------------------------------------\n\nUnsubscribe: Secunia Security Advisories\nhttp://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org\n\n----------------------------------------------------------------------\n\n\n. The Session Initiation\nProtocol (SIP) and Skinny Client Control Protocol (SCCP) services are\naffected by these vulnerabilities. \nThere are no workarounds for these vulnerabilities. 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, VoIP gateways, and multimedia\napplications. Each vulnerability is\ntriggered by a malformed SIP message that could cause a critical\nprocess to fail, resulting in the disruption of voice services. All\nSIP ports (TCP 5060 and 5061, UDP 5060 and 5061) are affected by\nthese vulnerabilities. To mitigate against\nthis vulnerability, administrators are advised to restrict access to\nTCP and UDP port 5060 on vulnerable Cisco Unified Communications\nManager 4.x systems that are configured to use SIP trunks with\nscreening devices to valid SIP trunk end points. \n\nThe second SIP DoS vulnerability is documented in Cisco Bug ID\nCSCsz40392 and has been assigned the CVE identifier CVE-2009-2051. By establishing many TCP connections with\na vulnerable system, an attacker could overwhelm the operating system\ntable that is used to track network connections and prevent new\nconnections from being established to system services. Any service\nthat listens to a TCP port on a vulnerable system could be affected\nby this vulnerability, including SIP and SCCP. By flooding a\nvulnerable system with many TCP packets, an attacker could exhaust\noperating system file descriptors that cause the SIP port (TCP 5060\nand 5061) and SCCP port (TCP 2000 and 2443) to close. This action\ncould prevent new connections from being established to the SIP and\nSCCP services. SIP UDP (5060 and 5061) ports are not affected. \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\nCSCsi46466 - CM 6.1 SDL router services dead when receiving abnormal\n\nCVSS Base Score - 7.8\n\nAccess Vector - Network\nAccess Complexity - Low\nAuthentication - None\nConfidentiality Impact - None\nIntegrity Impact - None\nAvailability Impact - Complete\n\nCVSS Temporal Score - 6.4\n\nExploitability - Functional\nRemediation Level - Official-Fix\nReport Confidence - Confirmed\n\nCSCsz40392 - CCM: Coredump in sipSafeStrlen from malicious INVITE\n\nAccess Vector - Network\nAccess Complexity - Low\nAuthentication - None\nConfidentiality Impact - None\nIntegrity Impact - None\nAvailability Impact - Complete\n\nCVSS Temporal Score - 6.4\n\nExploitability - Functional\nRemediation Level - Official-Fix\nReport Confidence - Confirmed\n\nCSCsq22534 - IP_Conntrack Fills Up During TCP Flood Attack\n\nAccess Vector - Network\nAccess Complexity - Low\nAuthentication - None\nConfidentiality Impact - None\nIntegrity Impact - None\nAvailability Impact - Complete\n\nCVSS Temporal Score - 6.4\n\nExploitability - Functional\nRemediation Level - Official-Fix\nReport Confidence - Confirmed\n\nCSCsx32236 - SCCP Port Closed in Response to FD Resource Exhaustion\n\nAccess Vector - Network\nAccess Complexity - Low\nAuthentication - None\nConfidentiality Impact - None\nIntegrity Impact - None\nAvailability Impact - Complete\n\nCVSS Temporal Score - 6.4\n\nExploitability - Functional\nRemediation Level - Official-Fix\nReport Confidence - Confirmed\n\nCSCsx23689 - SIP Port Closed in Response to FD Resource Exhaustion\n\nAccess Vector - Network\nAccess Complexity - Low\nAuthentication - None\nConfidentiality Impact - None\nIntegrity Impact - None\nAvailability Impact - Complete\n\nCVSS Temporal Score - 6.4\n\nExploitability - Functional\nRemediation Level - Official-Fix\nReport Confidence - Confirmed\n\nImpact\n======\n\nSuccessful exploitation of the vulnerabilities described in this\nadvisory could result 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. \nAdministrators can mitigate the SCCP- and SIP-related vulnerabilities\nby implementing filtering on screening devices to permit access to\nTCP ports 2000 and 2443, and TCP and UDP ports 5060 and 5061 only\nfrom networks that need SCCP and SIP access to Cisco Unified\nCommunications Manager servers. \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-20090826-cucm.shtml\n\nObtaining Fixed Software\n========================\n\nCisco has released free software updates for select Cisco Unified\nCommunications Manager versions that address these vulnerabilities. \nPrior to deploying software, customers should consult their\nmaintenance 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\nby the terms of Cisco\u0027s software license terms found at:\n\nhttp://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html\n\nor as otherwise set forth at Cisco.com Downloads at:\n\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. \nCustomers who are concerned about the availability of fixed software\nfor this vulnerability in these releases should contact the following\nemail address:\n\ncucm-august26-inquiry@cisco.com\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:\n\nhttp://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html\n\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. The\nvulnerabilities were discovered by Cisco. \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-20090826-cucm.shtml\n\nIn addition to worldwide web posting, a text version of this notice\nis clear-signed with the Cisco PSIRT PGP key and is posted to the\nfollowing e-mail and Usenet news recipients. \n\n * cust-security-announce@cisco.com\n * first-bulletins@lists.first.org\n * bugtraq@securityfocus.com\n * vulnwatch@vulnwatch.org\n * cisco@spot.colorado.edu\n * cisco-nsp@puck.nether.net\n * full-disclosure@lists.grok.org.uk\n * comp.dcom.sys.cisco@newsgate.cisco.com\n\nFuture updates of this advisory, if any, will be placed on Cisco\u0027s\nworldwide website, but may or may not be actively announced on\nmailing lists or newsgroups. Users concerned about this problem are\nencouraged to check the above URL for any updates. \n\nRevision History\n================\n\n+---------------------------------------+\n| Revision | | Initial |\n| 1.0 | 2009-August-26 | 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:\n\nhttp://www.cisco.com/en/US/products/products_security_vulnerability_policy.html\n\nThis includes instructions for press inquiries regarding Cisco\nsecurity notices. All Cisco security advisories are available at:\n\nhttp://www.cisco.com/go/psirt\n-----BEGIN PGP SIGNATURE-----\n\niD8DBQFKlVmL86n/Gc8U/uARAv5YAJ9Qo8XGM9LvJWJ6AvVGQ0DvQ1v1KQCgg8vf\nx3d5mwP1SWPEvIGzoXffuBc=\n=oqg/\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.