cisco-sa-c9800-capwap-mdns-6psn7gku
Vulnerability from csaf_cisco
Published
2022-04-13 16:00
Modified
2022-04-13 16:00
Summary
Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Service Vulnerability

Notes

Summary
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to inadequate input validation of incoming CAPWAP packets encapsulating multicast DNS (mDNS) queries. An attacker could exploit this vulnerability by connecting to a wireless network and sending a crafted mDNS query, which would flow through and be processed by the wireless controller. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is part of the April 2022 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: April 2022 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication. ["https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74561"]
Vulnerable Products
This vulnerability affects the following Cisco devices if they are running a vulnerable release of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family and have the mDNS gateway feature enabled (disabled by default): Catalyst 9800 Embedded Wireless Controllers for Catalyst 9300, 9400, and 9500 Series Switches Catalyst 9800 Series Wireless Controllers Catalyst 9800-CL Wireless Controllers for Cloud Embedded Wireless Controllers on Catalyst Access Points For information about which Cisco software releases are vulnerable, see the Fixed Software ["#fs"] section of this advisory. Determine the Device Configuration To determine whether the mDNS gateway feature is enabled on a device, log in to the device CLI and issue the command show mdns-sd summary. If the mDNS gateway feature is enabled, then issue the command show run | section wlan to verify whether any WLANs are configured to use the mDNS gateway. If both conditions are true, the device is vulnerable. The following example shows the output of the commands listed above for a device that has the mDNS gateway feature globally enabled and active on a WLAN: WLC#show mdns-sd summary mDNS Gateway: Enabled Mode: Default Active Query Periodicity (in minutes): 30 Transport Type: IPv4 mDNS AP service policy: default-mdns-service-policy WLC#show run | section wlan aaa attribute list wlan_lobby_access wlan ssidname policy default-policy-profile wlan ssidname 1 ssidname mdns-sd-interface gateway no shutdown
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 Wireless LAN Controller (WLC) AireOS Software
Workarounds
There are no workarounds that address this vulnerability.
Fixed Software
Cisco has released free software updates ["https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#ssu"] that address the vulnerability described in this advisory. Customers with service contracts that entitle them to regular software updates should obtain security fixes through their usual update channels. 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. The Cisco Support and Downloads page ["https://www.cisco.com/c/en/us/support/index.html"] on Cisco.com provides information about licensing and downloads. This page can also display customer device support coverage for customers who use the My Devices tool. 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: By default, the Cisco Software Checker ["https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"] includes results only for vulnerabilities that have a Critical or High Security Impact Rating (SIR). To include results for Medium SIR vulnerabilities, customers can use the Cisco Software Checker on Cisco.com and check the Medium check box in the drop-down list under Impact Rating when customizing a search.
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 Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.\r\n\r\nThis vulnerability is due to inadequate input validation of incoming CAPWAP packets encapsulating multicast DNS (mDNS) queries. An attacker could exploit this vulnerability by connecting to a wireless network and sending a crafted mDNS query, which would flow through and be processed by the wireless controller. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition.\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 April 2022 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: April 2022 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication. [\"https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74561\"]",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "This vulnerability affects the following Cisco devices if they are running a vulnerable release of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family and have the mDNS gateway feature enabled (disabled by default):\r\n\r\nCatalyst 9800 Embedded Wireless Controllers for Catalyst 9300, 9400, and 9500 Series Switches\r\nCatalyst 9800 Series Wireless Controllers\r\nCatalyst 9800-CL Wireless Controllers for Cloud\r\nEmbedded Wireless Controllers on Catalyst Access Points\r\n\r\nFor information about which Cisco software releases are vulnerable, see the Fixed Software [\"#fs\"] section of this advisory.\r\n  Determine the Device Configuration\r\nTo determine whether the mDNS gateway feature is enabled on a device, log in to the device CLI and issue the command show mdns-sd summary. If the mDNS gateway feature is enabled, then issue the command show run | section wlan to verify whether any WLANs are configured to use the mDNS gateway. If both conditions are true, the device is vulnerable.\r\n\r\nThe following example shows the output of the commands listed above for a device that has the mDNS gateway feature globally enabled and active on a WLAN:\r\n\r\n\r\nWLC#show mdns-sd summary\r\nmDNS Gateway: Enabled\r\nMode: Default\r\nActive Query Periodicity (in minutes): 30\r\nTransport Type: IPv4\r\nmDNS AP service policy: default-mdns-service-policy\r\n\r\nWLC#show run | section wlan\r\naaa attribute list wlan_lobby_access\r\n wlan ssidname policy default-policy-profile\r\nwlan ssidname 1 ssidname\r\n mdns-sd-interface gateway\r\n no shutdown",
        "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\r\nWireless LAN Controller (WLC) AireOS Software",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "There are no workarounds that address this vulnerability.",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "Cisco has released free software updates [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#ssu\"] that address the vulnerability described in this advisory. Customers with service contracts that entitle them to regular software updates should obtain security fixes through their usual update channels.\r\n\r\nCustomers 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\nThe Cisco Support and Downloads page [\"https://www.cisco.com/c/en/us/support/index.html\"] on Cisco.com provides information about licensing and downloads. This page can also display customer device support coverage for customers who use the My Devices tool.\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:\r\n\r\n\r\n\r\nBy default, the Cisco Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"] includes results only for vulnerabilities that have a Critical or High Security Impact Rating (SIR). To include results for Medium SIR vulnerabilities, customers can use the Cisco Software Checker on Cisco.com and check the Medium check box in the drop-down list under Impact Rating when customizing a search.",
        "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 Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Service Vulnerability",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-c9800-capwap-mdns-6PSn7gKU"
      },
      {
        "category": "external",
        "summary": "Cisco Event Response: April 2022 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication",
        "url": "https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74561"
      },
      {
        "category": "external",
        "summary": "Cisco Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      },
      {
        "category": "external",
        "summary": "free software updates",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#ssu"
      },
      {
        "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": "Cisco\u0026nbsp;Support and Downloads page",
        "url": "https://www.cisco.com/c/en/us/support/index.html"
      },
      {
        "category": "external",
        "summary": "considering software upgrades",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
      },
      {
        "category": "external",
        "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"
      },
      {
        "category": "external",
        "summary": "Cisco\u0026nbsp;Software Checker",
        "url": "https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"
      }
    ],
    "title": "Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Service Vulnerability",
    "tracking": {
      "current_release_date": "2022-04-13T16:00:00+00:00",
      "generator": {
        "date": "2024-05-10T23:14:11+00:00",
        "engine": {
          "name": "TVCE"
        }
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      "id": "cisco-sa-c9800-capwap-mdns-6PSn7gKU",
      "initial_release_date": "2022-04-13T16:00:00+00:00",
      "revision_history": [
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          "date": "2022-04-13T15:41:23+00:00",
          "number": "1.0.0",
          "summary": "Initial public release."
        }
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      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "16.11.1",
                    "product": {
                      "name": "16.11.1",
                      "product_id": "CSAFPID-227918"
                    }
                  },
                  {
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                    "name": "16.11.1a",
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                      "product_id": "CSAFPID-252271"
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                  },
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                      "product_id": "CSAFPID-261465"
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                      "product_id": "CSAFPID-227920"
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                  },
                  {
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                  {
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                      "product_id": "CSAFPID-265841"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.1c",
                    "product": {
                      "name": "16.12.1c",
                      "product_id": "CSAFPID-267110"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.1w",
                    "product": {
                      "name": "16.12.1w",
                      "product_id": "CSAFPID-267240"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.2",
                    "product": {
                      "name": "16.12.2",
                      "product_id": "CSAFPID-267605"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.1y",
                    "product": {
                      "name": "16.12.1y",
                      "product_id": "CSAFPID-271938"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.2a",
                    "product": {
                      "name": "16.12.2a",
                      "product_id": "CSAFPID-272047"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.3",
                    "product": {
                      "name": "16.12.3",
                      "product_id": "CSAFPID-273445"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.2s",
                    "product": {
                      "name": "16.12.2s",
                      "product_id": "CSAFPID-273509"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.1x",
                    "product": {
                      "name": "16.12.1x",
                      "product_id": "CSAFPID-273649"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.1t",
                    "product": {
                      "name": "16.12.1t",
                      "product_id": "CSAFPID-274832"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.2t",
                    "product": {
                      "name": "16.12.2t",
                      "product_id": "CSAFPID-275538"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.4",
                    "product": {
                      "name": "16.12.4",
                      "product_id": "CSAFPID-277147"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.3s",
                    "product": {
                      "name": "16.12.3s",
                      "product_id": "CSAFPID-277255"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.1z",
                    "product": {
                      "name": "16.12.1z",
                      "product_id": "CSAFPID-277256"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.3a",
                    "product": {
                      "name": "16.12.3a",
                      "product_id": "CSAFPID-277321"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.4a",
                    "product": {
                      "name": "16.12.4a",
                      "product_id": "CSAFPID-278881"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.5",
                    "product": {
                      "name": "16.12.5",
                      "product_id": "CSAFPID-280463"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.6",
                    "product": {
                      "name": "16.12.6",
                      "product_id": "CSAFPID-280937"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.1z1",
                    "product": {
                      "name": "16.12.1z1",
                      "product_id": "CSAFPID-281320"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.5a",
                    "product": {
                      "name": "16.12.5a",
                      "product_id": "CSAFPID-281438"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.5b",
                    "product": {
                      "name": "16.12.5b",
                      "product_id": "CSAFPID-281654"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.1z2",
                    "product": {
                      "name": "16.12.1z2",
                      "product_id": "CSAFPID-283831"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "16.12.6a",
                    "product": {
                      "name": "16.12.6a",
                      "product_id": "CSAFPID-285325"
                    }
                  }
                ],
                "category": "product_version",
                "name": "16.12"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "17.1.1",
                    "product": {
                      "name": "17.1.1",
                      "product_id": "CSAFPID-245377"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.1.1a",
                    "product": {
                      "name": "17.1.1a",
                      "product_id": "CSAFPID-272932"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.1.1s",
                    "product": {
                      "name": "17.1.1s",
                      "product_id": "CSAFPID-274818"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.1.2",
                    "product": {
                      "name": "17.1.2",
                      "product_id": "CSAFPID-277338"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.1.1t",
                    "product": {
                      "name": "17.1.1t",
                      "product_id": "CSAFPID-277348"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.1.3",
                    "product": {
                      "name": "17.1.3",
                      "product_id": "CSAFPID-280652"
                    }
                  }
                ],
                "category": "product_version",
                "name": "17.1"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "17.2.1",
                    "product": {
                      "name": "17.2.1",
                      "product_id": "CSAFPID-251225"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.2.1r",
                    "product": {
                      "name": "17.2.1r",
                      "product_id": "CSAFPID-277194"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.2.1a",
                    "product": {
                      "name": "17.2.1a",
                      "product_id": "CSAFPID-277343"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.2.1v",
                    "product": {
                      "name": "17.2.1v",
                      "product_id": "CSAFPID-278002"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.2.2",
                    "product": {
                      "name": "17.2.2",
                      "product_id": "CSAFPID-278504"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.2.3",
                    "product": {
                      "name": "17.2.3",
                      "product_id": "CSAFPID-280939"
                    }
                  }
                ],
                "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": "17.3.3",
                    "product": {
                      "name": "17.3.3",
                      "product_id": "CSAFPID-278019"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.3.1a",
                    "product": {
                      "name": "17.3.1a",
                      "product_id": "CSAFPID-279338"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.3.1w",
                    "product": {
                      "name": "17.3.1w",
                      "product_id": "CSAFPID-279339"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.3.2a",
                    "product": {
                      "name": "17.3.2a",
                      "product_id": "CSAFPID-280555"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.3.1x",
                    "product": {
                      "name": "17.3.1x",
                      "product_id": "CSAFPID-280783"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.3.1z",
                    "product": {
                      "name": "17.3.1z",
                      "product_id": "CSAFPID-281331"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.3.3a",
                    "product": {
                      "name": "17.3.3a",
                      "product_id": "CSAFPID-282017"
                    }
                  }
                ],
                "category": "product_version",
                "name": "17.3"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "17.4.1",
                    "product": {
                      "name": "17.4.1",
                      "product_id": "CSAFPID-262588"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.4.2",
                    "product": {
                      "name": "17.4.2",
                      "product_id": "CSAFPID-278020"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.4.1a",
                    "product": {
                      "name": "17.4.1a",
                      "product_id": "CSAFPID-280770"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.4.1b",
                    "product": {
                      "name": "17.4.1b",
                      "product_id": "CSAFPID-280899"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.4.1c",
                    "product": {
                      "name": "17.4.1c",
                      "product_id": "CSAFPID-282116"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.4.2a",
                    "product": {
                      "name": "17.4.2a",
                      "product_id": "CSAFPID-285328"
                    }
                  }
                ],
                "category": "product_version",
                "name": "17.4"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "17.5.1",
                    "product": {
                      "name": "17.5.1",
                      "product_id": "CSAFPID-262590"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.5.1a",
                    "product": {
                      "name": "17.5.1a",
                      "product_id": "CSAFPID-282046"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.5.1b",
                    "product": {
                      "name": "17.5.1b",
                      "product_id": "CSAFPID-290596"
                    }
                  }
                ],
                "category": "product_version",
                "name": "17.5"
              }
            ],
            "category": "product_family",
            "name": "Cisco IOS XE Software"
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2022-20682",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvy07717"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-227918",
          "CSAFPID-227920",
          "CSAFPID-245377",
          "CSAFPID-251225",
          "CSAFPID-252271",
          "CSAFPID-254712",
          "CSAFPID-260741",
          "CSAFPID-261240",
          "CSAFPID-261465",
          "CSAFPID-262588",
          "CSAFPID-262590",
          "CSAFPID-264096",
          "CSAFPID-265735",
          "CSAFPID-265841",
          "CSAFPID-267110",
          "CSAFPID-267240",
          "CSAFPID-267605",
          "CSAFPID-271938",
          "CSAFPID-272047",
          "CSAFPID-272932",
          "CSAFPID-273445",
          "CSAFPID-273509",
          "CSAFPID-273649",
          "CSAFPID-274818",
          "CSAFPID-274832",
          "CSAFPID-275538",
          "CSAFPID-277099",
          "CSAFPID-277147",
          "CSAFPID-277194",
          "CSAFPID-277255",
          "CSAFPID-277256",
          "CSAFPID-277321",
          "CSAFPID-277338",
          "CSAFPID-277343",
          "CSAFPID-277348",
          "CSAFPID-278002",
          "CSAFPID-278019",
          "CSAFPID-278020",
          "CSAFPID-278504",
          "CSAFPID-278881",
          "CSAFPID-279338",
          "CSAFPID-279339",
          "CSAFPID-280463",
          "CSAFPID-280555",
          "CSAFPID-280652",
          "CSAFPID-280770",
          "CSAFPID-280783",
          "CSAFPID-280899",
          "CSAFPID-280937",
          "CSAFPID-280939",
          "CSAFPID-281320",
          "CSAFPID-281331",
          "CSAFPID-281438",
          "CSAFPID-281654",
          "CSAFPID-282017",
          "CSAFPID-282046",
          "CSAFPID-282116",
          "CSAFPID-283831",
          "CSAFPID-285325",
          "CSAFPID-285328",
          "CSAFPID-290596"
        ]
      },
      "release_date": "2022-04-13T16:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-227918",
            "CSAFPID-227920",
            "CSAFPID-245377",
            "CSAFPID-251225",
            "CSAFPID-252271",
            "CSAFPID-254712",
            "CSAFPID-260741",
            "CSAFPID-261240",
            "CSAFPID-261465",
            "CSAFPID-262588",
            "CSAFPID-262590",
            "CSAFPID-264096",
            "CSAFPID-265735",
            "CSAFPID-265841",
            "CSAFPID-267110",
            "CSAFPID-267240",
            "CSAFPID-267605",
            "CSAFPID-271938",
            "CSAFPID-272047",
            "CSAFPID-272932",
            "CSAFPID-273445",
            "CSAFPID-273509",
            "CSAFPID-273649",
            "CSAFPID-274818",
            "CSAFPID-274832",
            "CSAFPID-275538",
            "CSAFPID-277099",
            "CSAFPID-277147",
            "CSAFPID-277194",
            "CSAFPID-277255",
            "CSAFPID-277256",
            "CSAFPID-277321",
            "CSAFPID-277338",
            "CSAFPID-277343",
            "CSAFPID-277348",
            "CSAFPID-278002",
            "CSAFPID-278019",
            "CSAFPID-278020",
            "CSAFPID-278504",
            "CSAFPID-278881",
            "CSAFPID-279338",
            "CSAFPID-279339",
            "CSAFPID-280463",
            "CSAFPID-280555",
            "CSAFPID-280652",
            "CSAFPID-280770",
            "CSAFPID-280783",
            "CSAFPID-280899",
            "CSAFPID-280937",
            "CSAFPID-280939",
            "CSAFPID-281320",
            "CSAFPID-281331",
            "CSAFPID-281438",
            "CSAFPID-281654",
            "CSAFPID-282017",
            "CSAFPID-282046",
            "CSAFPID-282116",
            "CSAFPID-283831",
            "CSAFPID-285325",
            "CSAFPID-285328",
            "CSAFPID-290596"
          ],
          "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-227918",
            "CSAFPID-227920",
            "CSAFPID-245377",
            "CSAFPID-251225",
            "CSAFPID-252271",
            "CSAFPID-254712",
            "CSAFPID-260741",
            "CSAFPID-261240",
            "CSAFPID-261465",
            "CSAFPID-262588",
            "CSAFPID-262590",
            "CSAFPID-264096",
            "CSAFPID-265735",
            "CSAFPID-265841",
            "CSAFPID-267110",
            "CSAFPID-267240",
            "CSAFPID-267605",
            "CSAFPID-271938",
            "CSAFPID-272047",
            "CSAFPID-272932",
            "CSAFPID-273445",
            "CSAFPID-273509",
            "CSAFPID-273649",
            "CSAFPID-274818",
            "CSAFPID-274832",
            "CSAFPID-275538",
            "CSAFPID-277099",
            "CSAFPID-277147",
            "CSAFPID-277194",
            "CSAFPID-277255",
            "CSAFPID-277256",
            "CSAFPID-277321",
            "CSAFPID-277338",
            "CSAFPID-277343",
            "CSAFPID-277348",
            "CSAFPID-278002",
            "CSAFPID-278019",
            "CSAFPID-278020",
            "CSAFPID-278504",
            "CSAFPID-278881",
            "CSAFPID-279338",
            "CSAFPID-279339",
            "CSAFPID-280463",
            "CSAFPID-280555",
            "CSAFPID-280652",
            "CSAFPID-280770",
            "CSAFPID-280783",
            "CSAFPID-280899",
            "CSAFPID-280937",
            "CSAFPID-280939",
            "CSAFPID-281320",
            "CSAFPID-281331",
            "CSAFPID-281438",
            "CSAFPID-281654",
            "CSAFPID-282017",
            "CSAFPID-282046",
            "CSAFPID-282116",
            "CSAFPID-283831",
            "CSAFPID-285325",
            "CSAFPID-285328",
            "CSAFPID-290596"
          ]
        }
      ],
      "title": "Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Denial of Service Vulnerability"
    }
  ]
}


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