cisco-sa-20200226-nxos-arp
Vulnerability from csaf_cisco
Published
2020-02-26 16:00
Modified
2020-02-26 16:00
Summary
Cisco NX-OS Software Anycast Gateway Invalid ARP Vulnerability

Notes

Summary
A vulnerability in the anycast gateway feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a device to learn invalid Address Resolution Protocol (ARP) entries. The ARP entries are for nonlocal IP addresses for the subnet. The vulnerability is due to improper validation of a received gratuitous ARP (GARP) request. An attacker could exploit this vulnerability by sending a malicious GARP packet on the local subnet to cause the ARP table on the device to become corrupted. A successful exploit could allow the attacker to populate the ARP table with incorrect entries, which could lead to traffic disruptions. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-nxos-arp ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-nxos-arp"]
Vulnerable Products
At the time of publication, this vulnerability affected the following Cisco products if they were running a vulnerable release of Cisco NX-OS Software and had the anycast gateway feature enabled: Nexus 3000 Series Switches Nexus 7000 Series Switches Nexus 9000 Series Switches in standalone NX-OS mode For information about which Cisco software releases were vulnerable at the time of publication, see the Fixed Software ["#fs"] section of this advisory. Determine the Status of the Anycast Gateway Feature Administrators can determine whether the anycast gateway feature is configured on a device by using the show running-config command in the device CLI. If the command returns output, the anycast gateway feature is configured: nxos-switch# show running-config . . . fabric forwarding mode anycast-gateway
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: Firepower 1000 Series Firepower 2100 Series Firepower 4100 Series Firepower 9300 Security Appliances MDS 9000 Series Multilayer Switches Nexus 1000 Virtual Edge for VMware vSphere Nexus 1000V Switch for Microsoft Hyper-V Nexus 1000V Switch for VMware vSphere Nexus 5500 Platform Switches Nexus 5600 Platform Switches Nexus 6000 Series Switches Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode UCS 6200 Series Fabric Interconnects UCS 6300 Series Fabric Interconnects UCS 6400 Series Fabric Interconnects
Indicators of Compromise
Administrators can use the CLI command show ip arp detail to display the ARP table. If the table contains an ARP address for a nonlocal IP address, the device could have been compromised by exploitation of this vulnerability. Contact the Cisco Technical Assistance Center (TAC) to determine whether this compromise has occurred.
Workarounds
There are no workarounds that address this vulnerability.
Fixed Software
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 and Alerts 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. Cisco NX-OS Software To help customers determine their exposure to vulnerabilities in Cisco NX-OS 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 Cisco NX-OS Software release and the earliest release that fixes the vulnerabilities that are 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, platform, 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 or one or more specific advisories. Customers can also use the following form to determine whether a release is affected by any Cisco Security Advisory by choosing the Cisco NX-OS Software and platform and then entering a release—for example, 7.0(3)I7(5) for Cisco Nexus 3000 Series Switches or 14.0(1h) for Cisco NX-OS Software in ACI mode: Cisco NX-OS Software Cisco NX-OS Software in ACI Mode MDS 9000 Series Multilayer Switches Nexus 1000V Series Switches Nexus 3000 Series Switches Nexus 5000 Series Switches Nexus 6000 Series Switches Nexus 7000 Series Switches Nexus 9000 Series Switches 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 and check the Medium check box in the drop-down list under Impact Rating when customizing a search. Cisco Nexus 7000 Series Switches SMUs For Cisco Nexus 7000 Series Switches, software maintenance upgrades (SMUs) are available for Cisco NX-OS Software Release 8.4(1). Customers can download the following SMUs from the Software Center ["https://software.cisco.com/download/navigator.html"] on Cisco.com: n7700-s3-dk9.8.4.1.CSCvs27997.bin n7700-s2-dk9.8.4.1.CSCvs27997.bin n7000-s2-dk9.8.4.1.CSCvs27997.bin For details about downloading and installing SMUs in Cisco NX-OS Software for Cisco Nexus 7000 Series Switches, see the Performing Software Maintenance Upgrades ["https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus7000/sw/system-management/guide/b_Cisco_Nexus_7000_Series_NX-OS_System_Management_Configuration_Guide-RI/b_Cisco_Nexus_7000_Series_NX-OS_System_Management_Configuration_Guide-RI_chapter_011011.html"] section of the Cisco Nexus 7000 Series NX-OS System Management Configuration Guide. Additional Resources For help determining the best Cisco NX-OS Software release for a Cisco Nexus Switch, administrators can refer to the following Recommended Releases documents. If a security advisory recommends a later release, Cisco recommends following the advisory guidance. Cisco MDS Series Switches ["https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/b_MDS_NX-OS_Recommended_Releases.html"] Cisco Nexus 1000V for VMware Switch ["http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus1000/sw/recommended_releases/b_Cisco_N1KV_VMware_MinRecommendedReleases.html"] Cisco Nexus 3000 Series Switches ["http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus3000/sw/recommended_release/b_Minimum_and_Recommended_Cisco_NX-OS_Releases_for_Cisco_Nexus_3000_Series_Switches.html"] Cisco Nexus 5500 Platform Switches ["http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5500/sw/release/recommended_releases/n5500_recommended_nx-os_releases.html"] Cisco Nexus 5600 Platform Switches ["https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5600/sw/release/recommended_releases/n5600_recommended_nx-os_releases.html"] Cisco Nexus 6000 Series Switches ["http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus6000/sw/release/recommended_releases/recommended_nx-os_releases.html"] Cisco Nexus 7000 Series Switches ["http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/nx-os/recommended_releases/recommended_nx-os_releases.html"] Cisco Nexus 9000 Series Switches ["http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/recommended_release/b_Minimum_and_Recommended_Cisco_NX-OS_Releases_for_Cisco_Nexus_9000_Series_Switches.html"] Cisco Nexus 9000 Series ACI-Mode Switches ["https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/recommended-release/b_Recommended_Cisco_ACI_Releases.html"] To determine the best release for Cisco UCS, see the Recommended Releases documents in the release notes for the device.
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
Cisco would like to thank Jens Krabbenhoeft of Rauscher networX for reporting this vulnerability.
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": "Cisco would like to thank Jens Krabbenhoeft of Rauscher networX for reporting this vulnerability."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "A vulnerability in the anycast gateway feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a device to learn invalid Address Resolution Protocol (ARP) entries. The ARP entries are for nonlocal IP addresses for the subnet.\r\n\r\nThe vulnerability is due to improper validation of a received gratuitous ARP (GARP) request. An attacker could exploit this vulnerability by sending a malicious GARP packet on the local subnet to cause the ARP table on the device to become corrupted. A successful exploit could allow the attacker to populate the ARP table with incorrect entries, which could lead to traffic disruptions.\r\n\r\nCisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.\r\n\r\nThis advisory is available at the following link:\r\nhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-nxos-arp [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-nxos-arp\"]",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "At the time of publication, this vulnerability affected the following Cisco products if they were running a vulnerable release of Cisco NX-OS Software and had the anycast gateway feature enabled:\r\n\r\nNexus 3000 Series Switches\r\nNexus 7000 Series Switches\r\nNexus 9000 Series Switches in standalone NX-OS mode\r\n\r\nFor information about which Cisco software releases were vulnerable at the time of publication, see the Fixed Software [\"#fs\"] section of this advisory.\r\n  Determine the Status of the Anycast Gateway Feature\r\nAdministrators can determine whether the anycast gateway feature is configured on a device by using the show running-config command in the device CLI. If the command returns output, the anycast gateway feature is configured:\r\n\r\n\r\nnxos-switch# show running-config\r\n.  .  .  fabric forwarding mode anycast-gateway",
        "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\nFirepower 1000 Series\r\nFirepower 2100 Series\r\nFirepower 4100 Series\r\nFirepower 9300 Security Appliances\r\nMDS 9000 Series Multilayer Switches\r\nNexus 1000 Virtual Edge for VMware vSphere\r\nNexus 1000V Switch for Microsoft Hyper-V\r\nNexus 1000V Switch for VMware vSphere\r\nNexus 5500 Platform Switches\r\nNexus 5600 Platform Switches\r\nNexus 6000 Series Switches\r\nNexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode\r\nUCS 6200 Series Fabric Interconnects\r\nUCS 6300 Series Fabric Interconnects\r\nUCS 6400 Series Fabric Interconnects",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "Administrators can use the CLI command show ip arp detail to display the ARP table. If the table contains an ARP address for a nonlocal IP address, the device could have been compromised by exploitation of this vulnerability. Contact the Cisco Technical Assistance Center (TAC) to determine whether this compromise has occurred.",
        "title": "Indicators of Compromise"
      },
      {
        "category": "general",
        "text": "There are no workarounds that address this vulnerability.",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "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 and Alerts 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  Cisco NX-OS Software\r\nTo help customers determine their exposure to vulnerabilities in Cisco NX-OS 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 Cisco NX-OS Software release and the earliest release that fixes the vulnerabilities that are 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, platform, 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 or one or more specific advisories.\r\n\r\nCustomers can also use the following form to determine whether a release is affected by any Cisco Security Advisory by choosing the Cisco NX-OS Software and platform and then entering a release\u2014for example, 7.0(3)I7(5) for Cisco Nexus 3000 Series Switches or 14.0(1h) for Cisco NX-OS Software in ACI mode:\r\n              Cisco NX-OS Software      Cisco NX-OS Software in ACI Mode                  MDS 9000 Series Multilayer Switches      Nexus 1000V Series Switches      Nexus 3000 Series Switches      Nexus 5000 Series Switches      Nexus 6000 Series Switches      Nexus 7000 Series Switches      Nexus 9000 Series Switches\r\n\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 and check the Medium check box in the drop-down list under Impact Rating when customizing a search.\r\n      Cisco Nexus 7000 Series Switches SMUs\r\nFor Cisco Nexus 7000 Series Switches, software maintenance upgrades (SMUs) are available for Cisco NX-OS Software Release 8.4(1). Customers can download the following SMUs from the Software Center [\"https://software.cisco.com/download/navigator.html\"] on Cisco.com:\r\n\r\nn7700-s3-dk9.8.4.1.CSCvs27997.bin\r\nn7700-s2-dk9.8.4.1.CSCvs27997.bin\r\nn7000-s2-dk9.8.4.1.CSCvs27997.bin\r\n\r\nFor details about downloading and installing SMUs in Cisco NX-OS Software for Cisco Nexus 7000 Series Switches, see the Performing Software Maintenance Upgrades [\"https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus7000/sw/system-management/guide/b_Cisco_Nexus_7000_Series_NX-OS_System_Management_Configuration_Guide-RI/b_Cisco_Nexus_7000_Series_NX-OS_System_Management_Configuration_Guide-RI_chapter_011011.html\"] section of the Cisco Nexus 7000 Series NX-OS System Management Configuration Guide.\r\n  Additional Resources\r\nFor help determining the best Cisco NX-OS Software release for a Cisco Nexus Switch, administrators can refer to the following Recommended Releases documents. If a security advisory recommends a later release, Cisco recommends following the advisory guidance.\r\n\r\n\r\nCisco MDS Series Switches [\"https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/b_MDS_NX-OS_Recommended_Releases.html\"]\r\nCisco Nexus 1000V for VMware Switch [\"http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus1000/sw/recommended_releases/b_Cisco_N1KV_VMware_MinRecommendedReleases.html\"]\r\nCisco Nexus 3000 Series Switches [\"http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus3000/sw/recommended_release/b_Minimum_and_Recommended_Cisco_NX-OS_Releases_for_Cisco_Nexus_3000_Series_Switches.html\"]\r\nCisco Nexus 5500 Platform Switches [\"http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5500/sw/release/recommended_releases/n5500_recommended_nx-os_releases.html\"]\r\nCisco Nexus 5600 Platform Switches [\"https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5600/sw/release/recommended_releases/n5600_recommended_nx-os_releases.html\"]\r\nCisco Nexus 6000 Series Switches [\"http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus6000/sw/release/recommended_releases/recommended_nx-os_releases.html\"]\r\nCisco Nexus 7000 Series Switches [\"http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/nx-os/recommended_releases/recommended_nx-os_releases.html\"]\r\nCisco Nexus 9000 Series Switches [\"http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/recommended_release/b_Minimum_and_Recommended_Cisco_NX-OS_Releases_for_Cisco_Nexus_9000_Series_Switches.html\"]\r\nCisco Nexus 9000 Series ACI-Mode Switches [\"https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/recommended-release/b_Recommended_Cisco_ACI_Releases.html\"]\r\n  To determine the best release for Cisco UCS, see the Recommended Releases documents in the release notes for the device.",
        "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": "Cisco would like to thank Jens Krabbenhoeft of Rauscher networX for reporting this vulnerability.",
        "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": "Emergency Support:\r\n+1 877 228 7302 (toll-free within North America)\r\n+1 408 525 6532 (International direct-dial)\r\nNon-emergency Support:\r\nEmail: psirt@cisco.com\r\nSupport requests that are received via e-mail are typically acknowledged within 48 hours.",
      "issuing_authority": "Cisco product security incident response is the responsibility of the Cisco Product Security Incident Response Team (PSIRT). The Cisco PSIRT is a dedicated, global team that manages the receipt, investigation, and public reporting of security vulnerability information that is related to Cisco products and networks. The on-call Cisco PSIRT works 24x7 with Cisco customers, independent security researchers, consultants, industry organizations, and other vendors to identify possible security issues with Cisco products and networks.\r\nMore information can be found in Cisco Security Vulnerability Policy available at https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html",
      "name": "Cisco",
      "namespace": "https://wwww.cisco.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "Cisco NX-OS Software Anycast Gateway Invalid ARP Vulnerability",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-nxos-arp"
      },
      {
        "category": "external",
        "summary": "Cisco Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      },
      {
        "category": "external",
        "summary": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-nxos-arp",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-nxos-arp"
      },
      {
        "category": "external",
        "summary": "considering software upgrades",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisories and Alerts page",
        "url": "https://www.cisco.com/go/psirt"
      },
      {
        "category": "external",
        "summary": "Cisco\u0026nbsp;Software Checker",
        "url": "https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"
      },
      {
        "category": "external",
        "summary": "Cisco\u0026nbsp;Software Checker",
        "url": "https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"
      },
      {
        "category": "external",
        "summary": "Cisco\u0026nbsp;Software Checker",
        "url": "https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"
      },
      {
        "category": "external",
        "summary": "Software Center",
        "url": "https://software.cisco.com/download/navigator.html"
      },
      {
        "category": "external",
        "summary": "Performing Software Maintenance Upgrades",
        "url": "https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus7000/sw/system-management/guide/b_Cisco_Nexus_7000_Series_NX-OS_System_Management_Configuration_Guide-RI/b_Cisco_Nexus_7000_Series_NX-OS_System_Management_Configuration_Guide-RI_chapter_011011.html"
      },
      {
        "category": "external",
        "summary": "Cisco MDS Series Switches",
        "url": "https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/b_MDS_NX-OS_Recommended_Releases.html"
      },
      {
        "category": "external",
        "summary": "Cisco Nexus 1000V for VMware Switch",
        "url": "http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus1000/sw/recommended_releases/b_Cisco_N1KV_VMware_MinRecommendedReleases.html"
      },
      {
        "category": "external",
        "summary": "Cisco Nexus 3000 Series Switches",
        "url": "http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus3000/sw/recommended_release/b_Minimum_and_Recommended_Cisco_NX-OS_Releases_for_Cisco_Nexus_3000_Series_Switches.html"
      },
      {
        "category": "external",
        "summary": "Cisco Nexus 5500 Platform Switches",
        "url": "http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5500/sw/release/recommended_releases/n5500_recommended_nx-os_releases.html"
      },
      {
        "category": "external",
        "summary": "Cisco Nexus 5600 Platform Switches",
        "url": "https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5600/sw/release/recommended_releases/n5600_recommended_nx-os_releases.html"
      },
      {
        "category": "external",
        "summary": "Cisco Nexus 6000 Series Switches",
        "url": "http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus6000/sw/release/recommended_releases/recommended_nx-os_releases.html"
      },
      {
        "category": "external",
        "summary": "Cisco Nexus 7000 Series Switches",
        "url": "http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/nx-os/recommended_releases/recommended_nx-os_releases.html"
      },
      {
        "category": "external",
        "summary": "Cisco Nexus 9000 Series Switches",
        "url": "http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/recommended_release/b_Minimum_and_Recommended_Cisco_NX-OS_Releases_for_Cisco_Nexus_9000_Series_Switches.html"
      },
      {
        "category": "external",
        "summary": "Cisco Nexus 9000 Series ACI-Mode Switches",
        "url": "https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/recommended-release/b_Recommended_Cisco_ACI_Releases.html"
      },
      {
        "category": "external",
        "summary": "Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      }
    ],
    "title": "Cisco NX-OS Software Anycast Gateway Invalid ARP Vulnerability",
    "tracking": {
      "current_release_date": "2020-02-26T16:00:00+00:00",
      "generator": {
        "date": "2022-09-03T03:14:19+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-20200226-nxos-arp",
      "initial_release_date": "2020-02-26T16:00:00+00:00",
      "revision_history": [
        {
          "date": "2020-02-25T19:24:45+00:00",
          "number": "1.0.0",
          "summary": "Initial public release."
        }
      ],
      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "7.3(2)D1(1d)",
                    "product": {
                      "name": "7.3(2)D1(1d)",
                      "product_id": "CSAFPID-275060"
                    }
                  }
                ],
                "category": "product_version",
                "name": "7.3(2)D1"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "8.0(1)",
                    "product": {
                      "name": "8.0(1)",
                      "product_id": "CSAFPID-227357"
                    }
                  }
                ],
                "category": "product_version",
                "name": "8.0"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "8.1(1)",
                    "product": {
                      "name": "8.1(1)",
                      "product_id": "CSAFPID-227356"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "8.1(2)",
                    "product": {
                      "name": "8.1(2)",
                      "product_id": "CSAFPID-239440"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "8.1(2a)",
                    "product": {
                      "name": "8.1(2a)",
                      "product_id": "CSAFPID-239441"
                    }
                  }
                ],
                "category": "product_version",
                "name": "8.1"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "8.2(1)",
                    "product": {
                      "name": "8.2(1)",
                      "product_id": "CSAFPID-230429"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "8.2(2)",
                    "product": {
                      "name": "8.2(2)",
                      "product_id": "CSAFPID-239442"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "8.2(3)",
                    "product": {
                      "name": "8.2(3)",
                      "product_id": "CSAFPID-265138"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "8.2(4)",
                    "product": {
                      "name": "8.2(4)",
                      "product_id": "CSAFPID-265139"
                    }
                  }
                ],
                "category": "product_version",
                "name": "8.2"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "8.3(1)",
                    "product": {
                      "name": "8.3(1)",
                      "product_id": "CSAFPID-248859"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "8.3(2)",
                    "product": {
                      "name": "8.3(2)",
                      "product_id": "CSAFPID-265140"
                    }
                  }
                ],
                "category": "product_version",
                "name": "8.3"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "9.2(1)",
                    "product": {
                      "name": "9.2(1)",
                      "product_id": "CSAFPID-248793"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.2(2)",
                    "product": {
                      "name": "9.2(2)",
                      "product_id": "CSAFPID-265141"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.2(2t)",
                    "product": {
                      "name": "9.2(2t)",
                      "product_id": "CSAFPID-265142"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.2(3)",
                    "product": {
                      "name": "9.2(3)",
                      "product_id": "CSAFPID-265143"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.2(3y)",
                    "product": {
                      "name": "9.2(3y)",
                      "product_id": "CSAFPID-265144"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.2(4)",
                    "product": {
                      "name": "9.2(4)",
                      "product_id": "CSAFPID-267105"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.2(2v)",
                    "product": {
                      "name": "9.2(2v)",
                      "product_id": "CSAFPID-268971"
                    }
                  }
                ],
                "category": "product_version",
                "name": "9.2"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "8.4(1)",
                    "product": {
                      "name": "8.4(1)",
                      "product_id": "CSAFPID-265563"
                    }
                  }
                ],
                "category": "product_version",
                "name": "8.4"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "9.3(1)",
                    "product": {
                      "name": "9.3(1)",
                      "product_id": "CSAFPID-265568"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "9.3(1z)",
                    "product": {
                      "name": "9.3(1z)",
                      "product_id": "CSAFPID-276381"
                    }
                  }
                ],
                "category": "product_version",
                "name": "9.3"
              }
            ],
            "category": "product_family",
            "name": "Cisco NX-OS Software"
          },
          {
            "category": "product_name",
            "name": "Cisco Nexus 7000 Series Switches",
            "product": {
              "name": "Cisco Nexus 7000 Series Switches",
              "product_id": "CSAFPID-265088"
            }
          },
          {
            "category": "product_name",
            "name": "Cisco Nexus 3000 Series Switches",
            "product": {
              "name": "Cisco Nexus 3000 Series Switches",
              "product_id": "CSAFPID-265091"
            }
          },
          {
            "category": "product_name",
            "name": "Cisco Nexus 9000 Series Switches",
            "product": {
              "name": "Cisco Nexus 9000 Series Switches",
              "product_id": "CSAFPID-265096"
            }
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ],
    "relationships": [
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 8.0(1) when installed on Cisco Nexus 7000 Series Switches",
          "product_id": "CSAFPID-227357:265088"
        },
        "product_reference": "CSAFPID-227357",
        "relates_to_product_reference": "CSAFPID-265088"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 8.1(1) when installed on Cisco Nexus 7000 Series Switches",
          "product_id": "CSAFPID-227356:265088"
        },
        "product_reference": "CSAFPID-227356",
        "relates_to_product_reference": "CSAFPID-265088"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 8.1(2) when installed on Cisco Nexus 7000 Series Switches",
          "product_id": "CSAFPID-239440:265088"
        },
        "product_reference": "CSAFPID-239440",
        "relates_to_product_reference": "CSAFPID-265088"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 8.1(2a) when installed on Cisco Nexus 7000 Series Switches",
          "product_id": "CSAFPID-239441:265088"
        },
        "product_reference": "CSAFPID-239441",
        "relates_to_product_reference": "CSAFPID-265088"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 8.2(1) when installed on Cisco Nexus 7000 Series Switches",
          "product_id": "CSAFPID-230429:265088"
        },
        "product_reference": "CSAFPID-230429",
        "relates_to_product_reference": "CSAFPID-265088"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 8.2(2) when installed on Cisco Nexus 7000 Series Switches",
          "product_id": "CSAFPID-239442:265088"
        },
        "product_reference": "CSAFPID-239442",
        "relates_to_product_reference": "CSAFPID-265088"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 8.2(3) when installed on Cisco Nexus 7000 Series Switches",
          "product_id": "CSAFPID-265138:265088"
        },
        "product_reference": "CSAFPID-265138",
        "relates_to_product_reference": "CSAFPID-265088"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 8.2(4) when installed on Cisco Nexus 7000 Series Switches",
          "product_id": "CSAFPID-265139:265088"
        },
        "product_reference": "CSAFPID-265139",
        "relates_to_product_reference": "CSAFPID-265088"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 8.3(1) when installed on Cisco Nexus 7000 Series Switches",
          "product_id": "CSAFPID-248859:265088"
        },
        "product_reference": "CSAFPID-248859",
        "relates_to_product_reference": "CSAFPID-265088"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 8.3(2) when installed on Cisco Nexus 7000 Series Switches",
          "product_id": "CSAFPID-265140:265088"
        },
        "product_reference": "CSAFPID-265140",
        "relates_to_product_reference": "CSAFPID-265088"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 9.2(1) when installed on Cisco Nexus 3000 Series Switches",
          "product_id": "CSAFPID-248793:265091"
        },
        "product_reference": "CSAFPID-248793",
        "relates_to_product_reference": "CSAFPID-265091"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 9.2(1) when installed on Cisco Nexus 9000 Series Switches",
          "product_id": "CSAFPID-248793:265096"
        },
        "product_reference": "CSAFPID-248793",
        "relates_to_product_reference": "CSAFPID-265096"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 9.2(2) when installed on Cisco Nexus 3000 Series Switches",
          "product_id": "CSAFPID-265141:265091"
        },
        "product_reference": "CSAFPID-265141",
        "relates_to_product_reference": "CSAFPID-265091"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 9.2(2) when installed on Cisco Nexus 9000 Series Switches",
          "product_id": "CSAFPID-265141:265096"
        },
        "product_reference": "CSAFPID-265141",
        "relates_to_product_reference": "CSAFPID-265096"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 9.2(2t) when installed on Cisco Nexus 3000 Series Switches",
          "product_id": "CSAFPID-265142:265091"
        },
        "product_reference": "CSAFPID-265142",
        "relates_to_product_reference": "CSAFPID-265091"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 9.2(3) when installed on Cisco Nexus 3000 Series Switches",
          "product_id": "CSAFPID-265143:265091"
        },
        "product_reference": "CSAFPID-265143",
        "relates_to_product_reference": "CSAFPID-265091"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 9.2(3) when installed on Cisco Nexus 9000 Series Switches",
          "product_id": "CSAFPID-265143:265096"
        },
        "product_reference": "CSAFPID-265143",
        "relates_to_product_reference": "CSAFPID-265096"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 9.2(3y) when installed on Cisco Nexus 3000 Series Switches",
          "product_id": "CSAFPID-265144:265091"
        },
        "product_reference": "CSAFPID-265144",
        "relates_to_product_reference": "CSAFPID-265091"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 9.2(3y) when installed on Cisco Nexus 9000 Series Switches",
          "product_id": "CSAFPID-265144:265096"
        },
        "product_reference": "CSAFPID-265144",
        "relates_to_product_reference": "CSAFPID-265096"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 9.2(4) when installed on Cisco Nexus 3000 Series Switches",
          "product_id": "CSAFPID-267105:265091"
        },
        "product_reference": "CSAFPID-267105",
        "relates_to_product_reference": "CSAFPID-265091"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 9.2(4) when installed on Cisco Nexus 9000 Series Switches",
          "product_id": "CSAFPID-267105:265096"
        },
        "product_reference": "CSAFPID-267105",
        "relates_to_product_reference": "CSAFPID-265096"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 9.2(2v) when installed on Cisco Nexus 3000 Series Switches",
          "product_id": "CSAFPID-268971:265091"
        },
        "product_reference": "CSAFPID-268971",
        "relates_to_product_reference": "CSAFPID-265091"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 8.4(1) when installed on Cisco Nexus 7000 Series Switches",
          "product_id": "CSAFPID-265563:265088"
        },
        "product_reference": "CSAFPID-265563",
        "relates_to_product_reference": "CSAFPID-265088"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 9.3(1) when installed on Cisco Nexus 3000 Series Switches",
          "product_id": "CSAFPID-265568:265091"
        },
        "product_reference": "CSAFPID-265568",
        "relates_to_product_reference": "CSAFPID-265091"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 9.3(1) when installed on Cisco Nexus 9000 Series Switches",
          "product_id": "CSAFPID-265568:265096"
        },
        "product_reference": "CSAFPID-265568",
        "relates_to_product_reference": "CSAFPID-265096"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 9.3(1z) when installed on Cisco Nexus 9000 Series Switches",
          "product_id": "CSAFPID-276381:265096"
        },
        "product_reference": "CSAFPID-276381",
        "relates_to_product_reference": "CSAFPID-265096"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2020-3174",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvq48220"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-227356:265088",
          "CSAFPID-227357:265088",
          "CSAFPID-230429:265088",
          "CSAFPID-239440:265088",
          "CSAFPID-239441:265088",
          "CSAFPID-239442:265088",
          "CSAFPID-248793:265091",
          "CSAFPID-248793:265096",
          "CSAFPID-248859:265088",
          "CSAFPID-265138:265088",
          "CSAFPID-265139:265088",
          "CSAFPID-265140:265088",
          "CSAFPID-265141:265091",
          "CSAFPID-265141:265096",
          "CSAFPID-265142:265091",
          "CSAFPID-265143:265091",
          "CSAFPID-265143:265096",
          "CSAFPID-265144:265091",
          "CSAFPID-265144:265096",
          "CSAFPID-265563:265088",
          "CSAFPID-265568:265091",
          "CSAFPID-265568:265096",
          "CSAFPID-267105:265091",
          "CSAFPID-267105:265096",
          "CSAFPID-268971:265091",
          "CSAFPID-275060",
          "CSAFPID-276381:265096"
        ]
      },
      "release_date": "2020-02-26T16:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-227356:265088",
            "CSAFPID-227357:265088",
            "CSAFPID-230429:265088",
            "CSAFPID-239440:265088",
            "CSAFPID-239441:265088",
            "CSAFPID-239442:265088",
            "CSAFPID-248793:265091",
            "CSAFPID-248793:265096",
            "CSAFPID-248859:265088",
            "CSAFPID-265138:265088",
            "CSAFPID-265139:265088",
            "CSAFPID-265140:265088",
            "CSAFPID-265141:265091",
            "CSAFPID-265141:265096",
            "CSAFPID-265142:265091",
            "CSAFPID-265143:265091",
            "CSAFPID-265143:265096",
            "CSAFPID-265144:265091",
            "CSAFPID-265144:265096",
            "CSAFPID-265563:265088",
            "CSAFPID-265568:265091",
            "CSAFPID-265568:265096",
            "CSAFPID-267105:265091",
            "CSAFPID-267105:265096",
            "CSAFPID-268971:265091",
            "CSAFPID-275060",
            "CSAFPID-276381:265096"
          ],
          "url": "https://software.cisco.com"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-227356:265088",
            "CSAFPID-227357:265088",
            "CSAFPID-230429:265088",
            "CSAFPID-239440:265088",
            "CSAFPID-239441:265088",
            "CSAFPID-239442:265088",
            "CSAFPID-248793:265091",
            "CSAFPID-248793:265096",
            "CSAFPID-248859:265088",
            "CSAFPID-265138:265088",
            "CSAFPID-265139:265088",
            "CSAFPID-265140:265088",
            "CSAFPID-265141:265091",
            "CSAFPID-265141:265096",
            "CSAFPID-265142:265091",
            "CSAFPID-265143:265091",
            "CSAFPID-265143:265096",
            "CSAFPID-265144:265091",
            "CSAFPID-265144:265096",
            "CSAFPID-265563:265088",
            "CSAFPID-265568:265091",
            "CSAFPID-265568:265096",
            "CSAFPID-267105:265091",
            "CSAFPID-267105:265096",
            "CSAFPID-268971:265091",
            "CSAFPID-275060",
            "CSAFPID-276381:265096"
          ]
        }
      ],
      "title": "Cisco NX-OS Software Anycast Gateway Invalid ARP Vulnerability"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.