cisco-sa-cbr8-cops-vc2zsjsx
Vulnerability from csaf_cisco
Published
2021-09-22 16:00
Modified
2021-09-22 16:00
Summary
Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers Common Open Policy Service Denial of Service Vulnerability

Notes

Summary
A vulnerability in the Common Open Policy Service (COPS) of Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, remote attacker to cause resource exhaustion, resulting in a denial of service (DoS) condition. This vulnerability is due to a deadlock condition in the code when processing COPS packets under certain conditions. An attacker could exploit this vulnerability by sending COPS packets with high burst rates to an affected device. A successful exploit could allow the attacker to cause the CPU to consume excessive resources, which prevents other control plane processes from obtaining resources and results in a DoS. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is part of the September 2021 release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: September 2021 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication. ["https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74581"]
Vulnerable Products
This vulnerability affects Cisco cBR-8 Converged Broadband Routers if they are running a release of Cisco IOS XE Software earlier than Release 16.12.1z1 or Release 17.3.1x and have the COPS feature enabled. Determine Whether COPS is Enabled The COPS will listen when either of the following is true: COPS TCP port 2126 will be opened with packetcable command COPS TCP port 3918 will be opened with packetcable multimedia command To determine whether the COPS is listening, log in to the device and issue the show running-config | include packetcable CLI command. If the output returns either packetcable or packetcable multimedia, as shown in the following example, then COPS is listening on the device: cBR-8# show running-config | include packetcable packetcable packetcable multimedia cBR-8#
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products ["#vp"] section of this advisory are known to be affected by this vulnerability. Cisco has confirmed that this vulnerability does not affect the following Cisco products: IOS Software IOS XR Software Meraki products NX-OS Software
Workarounds
There are no workarounds that address this vulnerability. However, there are mitigations: Customers who use packetcable or packetcable multimedia and leverage a COPS server in their environment can configure Cisco cBR-8 Routers to process packets from trusted COPS servers only, as shown in the following example: cBR-8# configure terminal cBR-8(config)#access-list 55 remark ** Permit only Trusted COPS servers ** cBR-8(config)#access-list 55 permit <COPSERVER1> cBR-8(config)#access-list 55 permit <COPSERVER2> cBR-8(config)#access-list 55 deny any cBR-8(config)#cops listener access-list 55 cBR-8# Customers who are using packetcable or packetcable multimedia but do not leverage a COPS server in their environment can configure Cisco cBR-8 Routers to deny processing any COPS packets, as shown in following example: cBR-8# configure terminal cBR-8(config)#access-list 55 remark ** Drop All COPS packets ** cBR-8(config)#access-list 55 deny any cBR-8(config)#cops listener access-list 55 cBR-8# Another way to minimize the impact of this vulnerability is to lower the COPS server keep alive setting to a value lower than the routing protocol keep alive timers. Having a COPS keep alive setting of 15 seconds will not remove the vulnerability, but it would force the COPS connection to be automatically renewed and clear the deadlock condition on the Cisco cBR8 Router code before it impacts other control plane protocols. The keep alive setting is controlled by the COPS server. While these mitigations have been deployed and were proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment.
Fixed Software
Cisco has released free software updates that address the vulnerability described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license: https://www.cisco.com/c/en/us/products/end-user-license-agreement.html ["https://www.cisco.com/c/en/us/products/end-user-license-agreement.html"] Additionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades. When considering software upgrades ["https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"], customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page ["https://www.cisco.com/go/psirt"], to determine exposure and a complete upgrade solution. In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers. Customers Without Service Contracts Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC: https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html ["https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html"] Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade. Cisco IOS and IOS XE Software To help customers determine their exposure to vulnerabilities in Cisco IOS and IOS XE Software, Cisco provides the Cisco Software Checker ["https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"] to identify any Cisco Security Advisories that impact a specific software release and the earliest release that fixes the vulnerabilities described in each advisory (“First Fixed”). If applicable, the tool also returns the earliest release that fixes all the vulnerabilities described in all the advisories identified (“Combined First Fixed”). Customers can use the Cisco Software Checker ["https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"] to search advisories in the following ways: Choose the software and one or more releases Upload a .txt file that includes a list of specific releases Enter the output of the show version command After initiating a search, customers can customize the search to include all Cisco Security Advisories, a specific advisory, or all advisories in the most recent bundled publication. Customers can also use the following form to determine whether a release is affected by any Cisco Security Advisory by entering a Cisco IOS or IOS XE Software release—for example, 15.1(4)M2 or 3.13.8S:
Vulnerability Policy
To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy ["https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
Exploitation and Public Announcements
The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
Source
This vulnerability was found during the resolution of a Cisco TAC support case.
Legal Disclaimer
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 standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products.


To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "summary": "This vulnerability was found during the resolution of a Cisco TAC support case."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "A vulnerability in the Common Open Policy Service (COPS) of Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, remote attacker to cause resource exhaustion, resulting in a denial of service (DoS) condition.\r\n\r\nThis vulnerability is due to a deadlock condition in the code when processing COPS packets under certain conditions. An attacker could exploit this vulnerability by sending COPS packets with high burst rates to an affected device. A successful exploit could allow the attacker to cause the CPU to consume excessive resources, which prevents other control plane processes from obtaining resources and results in a DoS.\r\n\r\nCisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.\r\n\r\n\r\n\r\nThis advisory is part of the September 2021 release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: September 2021 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication. [\"https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74581\"]",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "This vulnerability affects Cisco cBR-8 Converged Broadband Routers if they are running a release of Cisco IOS XE Software earlier than Release 16.12.1z1 or Release 17.3.1x and have the COPS feature enabled.\r\n  Determine Whether COPS is Enabled\r\nThe COPS will listen when either of the following is true:\r\n\r\nCOPS TCP port 2126 will be opened with packetcable command\r\nCOPS TCP port  3918 will be opened with packetcable multimedia command\r\n\r\nTo determine whether the COPS is listening, log in to the device and issue the show running-config | include packetcable CLI command. If the output returns either packetcable or packetcable multimedia, as shown in the following example, then COPS is listening on the device:\r\n\r\n\r\ncBR-8# show running-config | include packetcable\r\npacketcable\r\npacketcable multimedia\r\ncBR-8#",
        "title": "Vulnerable Products"
      },
      {
        "category": "general",
        "text": "Only products listed in the Vulnerable Products [\"#vp\"] section of this advisory are known to be affected by this vulnerability.\r\n\r\nCisco has confirmed that this vulnerability does not affect the following Cisco products:\r\n\r\nIOS Software\r\nIOS XR Software\r\nMeraki products\r\nNX-OS Software",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "There are no workarounds that address this vulnerability. However, there are mitigations:\r\n\r\nCustomers who use packetcable or packetcable multimedia and leverage a COPS server in their environment can configure Cisco cBR-8 Routers to process packets from trusted COPS servers only, as shown in the following example:\r\n\r\n\r\ncBR-8# configure terminal\r\ncBR-8(config)#access-list 55 remark ** Permit only Trusted COPS servers **\r\ncBR-8(config)#access-list 55 permit \u003cCOPSERVER1\u003e\r\ncBR-8(config)#access-list 55 permit \u003cCOPSERVER2\u003e\ncBR-8(config)#access-list 55 deny any\r\ncBR-8(config)#cops listener access-list 55\r\ncBR-8#\r\n\r\nCustomers who are using packetcable or packetcable multimedia but do not leverage a COPS server in their environment can configure Cisco cBR-8 Routers to deny processing any COPS packets, as shown in following example:\r\n\r\n\r\ncBR-8# configure terminal\r\ncBR-8(config)#access-list 55 remark ** Drop All COPS packets **\r\ncBR-8(config)#access-list 55 deny any\r\ncBR-8(config)#cops listener access-list 55\r\ncBR-8#\r\n\n\r\nAnother way to minimize the impact of this vulnerability is to lower the COPS server keep alive setting to a value lower than the routing protocol keep alive timers. Having a COPS keep alive setting of 15 seconds will not remove the vulnerability, but it would force the COPS connection to be automatically renewed and clear the deadlock condition on the Cisco cBR8 Router code before it impacts other control plane protocols. The keep alive setting is controlled by the COPS server.\r\n\r\nWhile these mitigations have been deployed and were proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment.",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "Cisco has released free software updates that address the vulnerability described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license:\r\nhttps://www.cisco.com/c/en/us/products/end-user-license-agreement.html [\"https://www.cisco.com/c/en/us/products/end-user-license-agreement.html\"]\r\n\r\nAdditionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.\r\n\r\nWhen considering software upgrades [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"], customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page [\"https://www.cisco.com/go/psirt\"], to determine exposure and a complete upgrade solution.\r\n\r\nIn all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.\r\n Customers Without Service Contracts\r\nCustomers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC: https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html [\"https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html\"]\r\n\r\nCustomers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.\r\n    Cisco IOS and IOS XE Software\r\nTo help customers determine their exposure to vulnerabilities in Cisco IOS and IOS XE Software, Cisco provides the Cisco Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"] to identify any Cisco Security Advisories that impact a specific software release and the earliest release that fixes the vulnerabilities described in each advisory (\u201cFirst Fixed\u201d). If applicable, the tool also returns the earliest release that fixes all the vulnerabilities described in all the advisories identified (\u201cCombined First Fixed\u201d).\r\n\r\nCustomers can use the Cisco Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"] to search advisories in the following ways:\r\n\r\nChoose the software and one or more releases\r\nUpload a .txt file that includes a list of specific releases\r\nEnter the output of the show version command\r\n\r\nAfter initiating a search, customers can customize the search to include all Cisco Security Advisories, a specific advisory, or all advisories in the most recent bundled publication.\r\n\r\nCustomers can also use the following form to determine whether a release is affected by any Cisco Security Advisory by entering a Cisco IOS or IOS XE Software release\u2014for example, 15.1(4)M2 or 3.13.8S:",
        "title": "Fixed Software"
      },
      {
        "category": "general",
        "text": "To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html\"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.",
        "title": "Vulnerability Policy"
      },
      {
        "category": "general",
        "text": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.",
        "title": "Exploitation and Public Announcements"
      },
      {
        "category": "general",
        "text": "This vulnerability was found during the resolution of a Cisco TAC support case.",
        "title": "Source"
      },
      {
        "category": "legal_disclaimer",
        "text": "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.\r\n\r\nA standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products.",
        "title": "Legal Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "psirt@cisco.com",
      "issuing_authority": "Cisco PSIRT",
      "name": "Cisco",
      "namespace": "https://wwww.cisco.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers Common Open Policy Service Denial of Service Vulnerability",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cbr8-cops-Vc2ZsJSx"
      },
      {
        "category": "external",
        "summary": "Cisco Event Response: September 2021 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication",
        "url": "https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74581"
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      },
      {
        "category": "external",
        "summary": "https://www.cisco.com/c/en/us/products/end-user-license-agreement.html",
        "url": "https://www.cisco.com/c/en/us/products/end-user-license-agreement.html"
      },
      {
        "category": "external",
        "summary": "considering software upgrades",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
      },
      {
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        "summary": "Cisco\u0026nbsp;Security Advisories page",
        "url": "https://www.cisco.com/go/psirt"
      },
      {
        "category": "external",
        "summary": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html",
        "url": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html"
      },
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        "category": "external",
        "summary": "Cisco\u0026nbsp;Software Checker",
        "url": "https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"
      }
    ],
    "title": "Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers Common Open Policy Service Denial of Service Vulnerability",
    "tracking": {
      "current_release_date": "2021-09-22T16:00:00+00:00",
      "generator": {
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  "product_tree": {
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        "branches": [
          {
            "branches": [
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "3.15.0S",
                    "product": {
                      "name": "3.15.0S",
                      "product_id": "CSAFPID-206180"
                    }
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              {
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                    "name": "16.6.1",
                    "product": {
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                      "product_id": "CSAFPID-218901"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.6.2",
                    "product": {
                      "name": "16.6.2",
                      "product_id": "CSAFPID-228706"
                    }
                  }
                ],
                "category": "product_version",
                "name": "16.6"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "16.7.1",
                    "product": {
                      "name": "16.7.1",
                      "product_id": "CSAFPID-218903"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.7.1a",
                    "product": {
                      "name": "16.7.1a",
                      "product_id": "CSAFPID-231389"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.7.1b",
                    "product": {
                      "name": "16.7.1b",
                      "product_id": "CSAFPID-232767"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.7.2",
                    "product": {
                      "name": "16.7.2",
                      "product_id": "CSAFPID-236837"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.7.3",
                    "product": {
                      "name": "16.7.3",
                      "product_id": "CSAFPID-244070"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.7.4",
                    "product": {
                      "name": "16.7.4",
                      "product_id": "CSAFPID-258388"
                    }
                  }
                ],
                "category": "product_version",
                "name": "16.7"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "16.8.1",
                    "product": {
                      "name": "16.8.1",
                      "product_id": "CSAFPID-218905"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.8.1d",
                    "product": {
                      "name": "16.8.1d",
                      "product_id": "CSAFPID-242834"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.8.1e",
                    "product": {
                      "name": "16.8.1e",
                      "product_id": "CSAFPID-249171"
                    }
                  }
                ],
                "category": "product_version",
                "name": "16.8"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "16.9.1",
                    "product": {
                      "name": "16.9.1",
                      "product_id": "CSAFPID-225856"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.9.1a",
                    "product": {
                      "name": "16.9.1a",
                      "product_id": "CSAFPID-242308"
                    }
                  }
                ],
                "category": "product_version",
                "name": "16.9"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "16.10.1",
                    "product": {
                      "name": "16.10.1",
                      "product_id": "CSAFPID-225858"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.10.1c",
                    "product": {
                      "name": "16.10.1c",
                      "product_id": "CSAFPID-254688"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.10.1d",
                    "product": {
                      "name": "16.10.1d",
                      "product_id": "CSAFPID-258900"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.10.1f",
                    "product": {
                      "name": "16.10.1f",
                      "product_id": "CSAFPID-262595"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.10.1g",
                    "product": {
                      "name": "16.10.1g",
                      "product_id": "CSAFPID-266259"
                    }
                  }
                ],
                "category": "product_version",
                "name": "16.10"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "16.12.1",
                    "product": {
                      "name": "16.12.1",
                      "product_id": "CSAFPID-227920"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.1w",
                    "product": {
                      "name": "16.12.1w",
                      "product_id": "CSAFPID-267240"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.1y",
                    "product": {
                      "name": "16.12.1y",
                      "product_id": "CSAFPID-271938"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.1x",
                    "product": {
                      "name": "16.12.1x",
                      "product_id": "CSAFPID-273649"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.1z",
                    "product": {
                      "name": "16.12.1z",
                      "product_id": "CSAFPID-277256"
                    }
                  }
                ],
                "category": "product_version",
                "name": "16.12"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "17.2.1",
                    "product": {
                      "name": "17.2.1",
                      "product_id": "CSAFPID-251225"
                    }
                  }
                ],
                "category": "product_version",
                "name": "17.2"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "17.3.1",
                    "product": {
                      "name": "17.3.1",
                      "product_id": "CSAFPID-254712"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.3.2",
                    "product": {
                      "name": "17.3.2",
                      "product_id": "CSAFPID-277099"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.3.1w",
                    "product": {
                      "name": "17.3.1w",
                      "product_id": "CSAFPID-279339"
                    }
                  }
                ],
                "category": "product_version",
                "name": "17.3"
              }
            ],
            "category": "product_family",
            "name": "Cisco IOS XE Software"
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-1622",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvw49029"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-206180",
          "CSAFPID-210079",
          "CSAFPID-210081",
          "CSAFPID-212268",
          "CSAFPID-212408",
          "CSAFPID-212411",
          "CSAFPID-212412",
          "CSAFPID-213478",
          "CSAFPID-213776",
          "CSAFPID-214051",
          "CSAFPID-217234",
          "CSAFPID-217259",
          "CSAFPID-217270",
          "CSAFPID-217271",
          "CSAFPID-217272",
          "CSAFPID-217276",
          "CSAFPID-218901",
          "CSAFPID-218903",
          "CSAFPID-218905",
          "CSAFPID-220517",
          "CSAFPID-223018",
          "CSAFPID-225856",
          "CSAFPID-225858",
          "CSAFPID-226160",
          "CSAFPID-227920",
          "CSAFPID-228194",
          "CSAFPID-228706",
          "CSAFPID-230301",
          "CSAFPID-230302",
          "CSAFPID-231389",
          "CSAFPID-231826",
          "CSAFPID-232767",
          "CSAFPID-236837",
          "CSAFPID-237332",
          "CSAFPID-242308",
          "CSAFPID-242834",
          "CSAFPID-244070",
          "CSAFPID-246386",
          "CSAFPID-249171",
          "CSAFPID-251225",
          "CSAFPID-254688",
          "CSAFPID-254712",
          "CSAFPID-258388",
          "CSAFPID-258900",
          "CSAFPID-262595",
          "CSAFPID-266259",
          "CSAFPID-267240",
          "CSAFPID-271938",
          "CSAFPID-273649",
          "CSAFPID-277099",
          "CSAFPID-277256",
          "CSAFPID-279339"
        ]
      },
      "release_date": "2021-09-22T16:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-206180",
            "CSAFPID-210079",
            "CSAFPID-210081",
            "CSAFPID-212268",
            "CSAFPID-212408",
            "CSAFPID-212411",
            "CSAFPID-212412",
            "CSAFPID-213478",
            "CSAFPID-213776",
            "CSAFPID-214051",
            "CSAFPID-217234",
            "CSAFPID-217259",
            "CSAFPID-217270",
            "CSAFPID-217271",
            "CSAFPID-217272",
            "CSAFPID-217276",
            "CSAFPID-218901",
            "CSAFPID-218903",
            "CSAFPID-218905",
            "CSAFPID-220517",
            "CSAFPID-223018",
            "CSAFPID-225856",
            "CSAFPID-225858",
            "CSAFPID-226160",
            "CSAFPID-227920",
            "CSAFPID-228194",
            "CSAFPID-228706",
            "CSAFPID-230301",
            "CSAFPID-230302",
            "CSAFPID-231389",
            "CSAFPID-231826",
            "CSAFPID-232767",
            "CSAFPID-236837",
            "CSAFPID-237332",
            "CSAFPID-242308",
            "CSAFPID-242834",
            "CSAFPID-244070",
            "CSAFPID-246386",
            "CSAFPID-249171",
            "CSAFPID-251225",
            "CSAFPID-254688",
            "CSAFPID-254712",
            "CSAFPID-258388",
            "CSAFPID-258900",
            "CSAFPID-262595",
            "CSAFPID-266259",
            "CSAFPID-267240",
            "CSAFPID-271938",
            "CSAFPID-273649",
            "CSAFPID-277099",
            "CSAFPID-277256",
            "CSAFPID-279339"
          ],
          "url": "https://software.cisco.com"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-206180",
            "CSAFPID-210079",
            "CSAFPID-210081",
            "CSAFPID-212268",
            "CSAFPID-212408",
            "CSAFPID-212411",
            "CSAFPID-212412",
            "CSAFPID-213478",
            "CSAFPID-213776",
            "CSAFPID-214051",
            "CSAFPID-217234",
            "CSAFPID-217259",
            "CSAFPID-217270",
            "CSAFPID-217271",
            "CSAFPID-217272",
            "CSAFPID-217276",
            "CSAFPID-218901",
            "CSAFPID-218903",
            "CSAFPID-218905",
            "CSAFPID-220517",
            "CSAFPID-223018",
            "CSAFPID-225856",
            "CSAFPID-225858",
            "CSAFPID-226160",
            "CSAFPID-227920",
            "CSAFPID-228194",
            "CSAFPID-228706",
            "CSAFPID-230301",
            "CSAFPID-230302",
            "CSAFPID-231389",
            "CSAFPID-231826",
            "CSAFPID-232767",
            "CSAFPID-236837",
            "CSAFPID-237332",
            "CSAFPID-242308",
            "CSAFPID-242834",
            "CSAFPID-244070",
            "CSAFPID-246386",
            "CSAFPID-249171",
            "CSAFPID-251225",
            "CSAFPID-254688",
            "CSAFPID-254712",
            "CSAFPID-258388",
            "CSAFPID-258900",
            "CSAFPID-262595",
            "CSAFPID-266259",
            "CSAFPID-267240",
            "CSAFPID-271938",
            "CSAFPID-273649",
            "CSAFPID-277099",
            "CSAFPID-277256",
            "CSAFPID-279339"
          ]
        }
      ],
      "title": "Cisco IOS XE Software for CBR8 Common Open Policy Service Denial of Service Vulnerability"
    }
  ]
}


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