cisco-sa-20190828-nxos-snmp-bypass
Vulnerability from csaf_cisco
Published
2019-08-28 16:00
Modified
2019-08-28 16:00
Summary
Cisco NX-OS Software SNMP Access Control List Configuration Name Bypass Vulnerability

Notes

Summary
A vulnerability in the implementation of the Simple Network Management Protocol (SNMP) Access Control List (ACL) feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to perform SNMP polling of an affected device, even if it is configured to deny SNMP traffic. The vulnerability is due to an incorrect length check when the configured ACL name is the maximum length, which is 32 ASCII characters. An attacker could exploit this vulnerability by performing SNMP polling of an affected device. A successful exploit could allow the attacker to perform SNMP polling that should have been denied. The attacker has no control of the configuration of the SNMP ACL name. Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190828-nxos-snmp-bypass ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190828-nxos-snmp-bypass"]
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 with a specific SNMP ACL configured: Nexus 3000 Series Switches Nexus 3500 Platform Switches Nexus 3600 Platform Switches Nexus 9000 Series Switches in standalone NX-OS mode Nexus 9500 R-Series Switching Platform For information about which Cisco NX-OS Software releases were vulnerable at the time of publication, see the Fixed Software ["#fs"] section of this advisory. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information. Administrators can use the show running-config | include "snmp-server" command to view the configured SNMP ACL for IPv4: nxos-switch# show running-config | include "snmp-server" snmp-server user <USER> use-ipv4acl <ACL NAME> If this command is present in the running configuration and the ACL name has the maximum length of 32 characters, the device should be considered vulnerable. This applies to IPv6 SNMP ACLs as well.
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 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 7000 Series Switches Nexus 7700 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
Details
To exploit this vulnerability via SNMP Version 2c or earlier, the attacker must know the SNMP read-only community string for the affected system. A community string is a password that is applied to a device to restrict both read-only and read-write access to the SNMP data on the device. These community strings, as with all passwords, should be chosen carefully to ensure that they are not trivial. They should also be changed at regular intervals and in accordance with network security policies. For example, the strings should be changed when a network administrator changes roles or leaves the organization. To exploit this vulnerability via SNMP Version 3, the attacker must have user credentials for the affected system.
Workarounds
As a workaround, administrators may reconfigure the SNMP ACL name to 31 characters or less.
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. Fixed Releases At the time of publication, the release information in the following table(s) was accurate. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information. The left column lists Cisco software releases, and the right column indicates whether a release was affected by the vulnerability described in this advisory and which release included the fix for this vulnerability. Nexus 3000 Series Switches, Nexus 3500 Platform Switches and Nexus 9000 Series Switches in Standalone NX-OS Mode: CSCvo17439 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvo17439"] Cisco NX-OS Software Release First Fixed Release for This Vulnerability Earlier than 7.0(3) Not vulnerable 7.0(3)I41 7.0(3)I7(6)1 7.0(3)I7 7.0(3)I7(6) 9.2 9.2(3) 9.3 Not vulnerable 1. The 7.0(3)I4 code train is not applicable to Nexus 3500 Platform Switches. Nexus 3600 Platform Switches and Nexus 9500 R-Series Switching Platform: CSCvo17439 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvo17439"] Cisco NX-OS Software Release First Fixed Release for This Vulnerability 7.0(3)F 9.2(3) 9.2 9.2(3) 9.3 Not vulnerable 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 and 3500 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 5000 Series Switches ["http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/release/recommended_releases/recommended_nx-os_releases.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 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"] For help determining the best Cisco NX-OS Software release for Cisco UCS, refer to 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
This vulnerability was found during 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.


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{
  "document": {
    "acknowledgments": [
      {
        "summary": "This vulnerability was found during resolution of a Cisco TAC support case."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "A vulnerability in the implementation of the Simple Network Management Protocol (SNMP) Access Control List (ACL) feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to perform SNMP polling of an affected device, even if it is configured to deny SNMP traffic.\r\n\r\nThe vulnerability is due to an incorrect length check when the configured ACL name is the maximum length, which is 32 ASCII characters. An attacker could exploit this vulnerability by performing SNMP polling of an affected device. A successful exploit could allow the attacker to perform SNMP polling that should have been denied. The attacker has no control of the configuration of the SNMP ACL name.\r\n\r\n\r\nCisco has released software updates that address this vulnerability. There are 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-20190828-nxos-snmp-bypass [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190828-nxos-snmp-bypass\"]",
        "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 with a specific SNMP ACL configured:\r\n\r\nNexus 3000 Series Switches\r\nNexus 3500 Platform Switches\r\nNexus 3600 Platform Switches\r\nNexus 9000 Series Switches in standalone NX-OS mode\r\nNexus 9500 R-Series Switching Platform\r\n\r\n\r\nFor information about which Cisco NX-OS Software releases were vulnerable at the time of publication, see the Fixed Software [\"#fs\"] section of this advisory. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.\r\n\r\n\r\nAdministrators can use the show running-config | include \"snmp-server\" command to view the configured SNMP ACL for IPv4:\r\n\r\n\r\nnxos-switch# show running-config | include \"snmp-server\"\r\nsnmp-server user \u003cUSER\u003e use-ipv4acl \u003cACL NAME\u003e\r\n\r\n\r\nIf this command is present in the running configuration and the ACL name has the maximum length of 32 characters, the device should be considered vulnerable. This applies to IPv6 SNMP ACLs as well.",
        "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 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 7000 Series Switches\r\nNexus 7700 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": "To exploit this vulnerability via SNMP Version 2c or earlier, the attacker must know the SNMP read-only community string for the affected system. A community string is a password that is applied to a device to restrict both read-only and read-write access to the SNMP data on the device. These community strings, as with all passwords, should be chosen carefully to ensure that they are not trivial. They should also be changed at regular intervals and in accordance with network security policies. For example, the strings should be changed when a network administrator changes roles or leaves the organization.\r\n\r\nTo exploit this vulnerability via SNMP Version 3, the attacker must have user credentials for the affected system.",
        "title": "Details"
      },
      {
        "category": "general",
        "text": "As a workaround, administrators may reconfigure the SNMP ACL name to 31 characters or less.",
        "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  Fixed Releases\r\n\r\nAt the time of publication, the release information in the following table(s) was accurate. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.\r\n\r\nThe left column lists Cisco software releases, and the right column indicates whether a release was affected by the vulnerability described in this advisory and which release included the fix for this vulnerability.\r\n\r\n\r\nNexus 3000 Series Switches, Nexus 3500 Platform Switches and Nexus 9000 Series Switches in Standalone NX-OS Mode: CSCvo17439 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvo17439\"]\r\n                                Cisco NX-OS Software Release              First Fixed Release for This Vulnerability\r\n                                              Earlier than 7.0(3)              Not vulnerable                                  7.0(3)I41              7.0(3)I7(6)1                                  7.0(3)I7              7.0(3)I7(6)                                  9.2              9.2(3)\r\n                                  9.3              Not vulnerable                    1. The 7.0(3)I4 code train is not applicable to Nexus 3500 Platform Switches.\r\nNexus 3600 Platform Switches and Nexus 9500 R-Series Switching Platform: CSCvo17439 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvo17439\"]\r\n                                Cisco NX-OS Software Release              First Fixed Release for This Vulnerability\r\n                                              7.0(3)F\r\n              9.2(3)\r\n                                  9.2              9.2(3)                                  9.3              Not vulnerable\r\nAdditional 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 and 3500 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 5000 Series Switches [\"http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/release/recommended_releases/recommended_nx-os_releases.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 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  For help determining the best Cisco NX-OS Software release for Cisco UCS, refer to 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": "This vulnerability was found during 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": "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 SNMP Access Control List Configuration Name Bypass Vulnerability",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190828-nxos-snmp-bypass"
      },
      {
        "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-20190828-nxos-snmp-bypass",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190828-nxos-snmp-bypass"
      },
      {
        "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": "CSCvo17439",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvo17439"
      },
      {
        "category": "external",
        "summary": "CSCvo17439",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvo17439"
      },
      {
        "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 and 3500 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 5000 Series Switches",
        "url": "http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/release/recommended_releases/recommended_nx-os_releases.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 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 SNMP Access Control List Configuration Name Bypass Vulnerability",
    "tracking": {
      "current_release_date": "2019-08-28T16:00:00+00:00",
      "generator": {
        "date": "2022-09-03T03:29:57+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-20190828-nxos-snmp-bypass",
      "initial_release_date": "2019-08-28T16:00:00+00:00",
      "revision_history": [
        {
          "date": "2019-08-28T15:12:52+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": "7.0(3)I7(1)",
                    "product": {
                      "name": "7.0(3)I7(1)",
                      "product_id": "CSAFPID-230542"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "7.0(3)I7(2)",
                    "product": {
                      "name": "7.0(3)I7(2)",
                      "product_id": "CSAFPID-239478"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "7.0(3)I7(3)",
                    "product": {
                      "name": "7.0(3)I7(3)",
                      "product_id": "CSAFPID-239479"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "7.0(3)I7(4)",
                    "product": {
                      "name": "7.0(3)I7(4)",
                      "product_id": "CSAFPID-248792"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "7.0(3)I7(5)",
                    "product": {
                      "name": "7.0(3)I7(5)",
                      "product_id": "CSAFPID-253295"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "7.0(3)I7(5a)",
                    "product": {
                      "name": "7.0(3)I7(5a)",
                      "product_id": "CSAFPID-256875"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "7.0(3)I7(3z)",
                    "product": {
                      "name": "7.0(3)I7(3z)",
                      "product_id": "CSAFPID-265113"
                    }
                  }
                ],
                "category": "product_version",
                "name": "7.0(3)I7"
              },
              {
                "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(2v)",
                    "product": {
                      "name": "9.2(2v)",
                      "product_id": "CSAFPID-268971"
                    }
                  }
                ],
                "category": "product_version",
                "name": "9.2"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "7.0(3)IA7(1)",
                    "product": {
                      "name": "7.0(3)IA7(1)",
                      "product_id": "CSAFPID-265117"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "7.0(3)IA7(2)",
                    "product": {
                      "name": "7.0(3)IA7(2)",
                      "product_id": "CSAFPID-265118"
                    }
                  }
                ],
                "category": "product_version",
                "name": "7.0(3)IA7"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "7.0(3)IM7(2)",
                    "product": {
                      "name": "7.0(3)IM7(2)",
                      "product_id": "CSAFPID-265128"
                    }
                  }
                ],
                "category": "product_version",
                "name": "7.0(3)IM7"
              }
            ],
            "category": "product_family",
            "name": "Cisco NX-OS Software"
          },
          {
            "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 7.0(3)I7(1) when installed on Cisco Nexus 3000 Series Switches",
          "product_id": "CSAFPID-230542:265091"
        },
        "product_reference": "CSAFPID-230542",
        "relates_to_product_reference": "CSAFPID-265091"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 7.0(3)I7(1) when installed on Cisco Nexus 9000 Series Switches",
          "product_id": "CSAFPID-230542:265096"
        },
        "product_reference": "CSAFPID-230542",
        "relates_to_product_reference": "CSAFPID-265096"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 7.0(3)I7(2) when installed on Cisco Nexus 3000 Series Switches",
          "product_id": "CSAFPID-239478:265091"
        },
        "product_reference": "CSAFPID-239478",
        "relates_to_product_reference": "CSAFPID-265091"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 7.0(3)I7(2) when installed on Cisco Nexus 9000 Series Switches",
          "product_id": "CSAFPID-239478:265096"
        },
        "product_reference": "CSAFPID-239478",
        "relates_to_product_reference": "CSAFPID-265096"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 7.0(3)I7(3) when installed on Cisco Nexus 3000 Series Switches",
          "product_id": "CSAFPID-239479:265091"
        },
        "product_reference": "CSAFPID-239479",
        "relates_to_product_reference": "CSAFPID-265091"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 7.0(3)I7(3) when installed on Cisco Nexus 9000 Series Switches",
          "product_id": "CSAFPID-239479:265096"
        },
        "product_reference": "CSAFPID-239479",
        "relates_to_product_reference": "CSAFPID-265096"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 7.0(3)I7(4) when installed on Cisco Nexus 3000 Series Switches",
          "product_id": "CSAFPID-248792:265091"
        },
        "product_reference": "CSAFPID-248792",
        "relates_to_product_reference": "CSAFPID-265091"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 7.0(3)I7(4) when installed on Cisco Nexus 9000 Series Switches",
          "product_id": "CSAFPID-248792:265096"
        },
        "product_reference": "CSAFPID-248792",
        "relates_to_product_reference": "CSAFPID-265096"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 7.0(3)I7(5) when installed on Cisco Nexus 3000 Series Switches",
          "product_id": "CSAFPID-253295:265091"
        },
        "product_reference": "CSAFPID-253295",
        "relates_to_product_reference": "CSAFPID-265091"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 7.0(3)I7(5) when installed on Cisco Nexus 9000 Series Switches",
          "product_id": "CSAFPID-253295:265096"
        },
        "product_reference": "CSAFPID-253295",
        "relates_to_product_reference": "CSAFPID-265096"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 7.0(3)I7(5a) when installed on Cisco Nexus 3000 Series Switches",
          "product_id": "CSAFPID-256875:265091"
        },
        "product_reference": "CSAFPID-256875",
        "relates_to_product_reference": "CSAFPID-265091"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 7.0(3)I7(5a) when installed on Cisco Nexus 9000 Series Switches",
          "product_id": "CSAFPID-256875:265096"
        },
        "product_reference": "CSAFPID-256875",
        "relates_to_product_reference": "CSAFPID-265096"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 7.0(3)I7(3z) when installed on Cisco Nexus 3000 Series Switches",
          "product_id": "CSAFPID-265113:265091"
        },
        "product_reference": "CSAFPID-265113",
        "relates_to_product_reference": "CSAFPID-265091"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 7.0(3)I7(3z) when installed on Cisco Nexus 9000 Series Switches",
          "product_id": "CSAFPID-265113:265096"
        },
        "product_reference": "CSAFPID-265113",
        "relates_to_product_reference": "CSAFPID-265096"
      },
      {
        "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(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 7.0(3)IA7(1) when installed on Cisco Nexus 9000 Series Switches",
          "product_id": "CSAFPID-265117:265096"
        },
        "product_reference": "CSAFPID-265117",
        "relates_to_product_reference": "CSAFPID-265096"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 7.0(3)IA7(2) when installed on Cisco Nexus 9000 Series Switches",
          "product_id": "CSAFPID-265118:265096"
        },
        "product_reference": "CSAFPID-265118",
        "relates_to_product_reference": "CSAFPID-265096"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco NX-OS Software 7.0(3)IM7(2) when installed on Cisco Nexus 3000 Series Switches",
          "product_id": "CSAFPID-265128:265091"
        },
        "product_reference": "CSAFPID-265128",
        "relates_to_product_reference": "CSAFPID-265091"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2019-1969",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvo17439"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-230542:265091",
          "CSAFPID-230542:265096",
          "CSAFPID-239478:265091",
          "CSAFPID-239478:265096",
          "CSAFPID-239479:265091",
          "CSAFPID-239479:265096",
          "CSAFPID-248792:265091",
          "CSAFPID-248792:265096",
          "CSAFPID-248793:265091",
          "CSAFPID-248793:265096",
          "CSAFPID-253295:265091",
          "CSAFPID-253295:265096",
          "CSAFPID-256875:265091",
          "CSAFPID-256875:265096",
          "CSAFPID-265113:265091",
          "CSAFPID-265113:265096",
          "CSAFPID-265117:265096",
          "CSAFPID-265118:265096",
          "CSAFPID-265128:265091",
          "CSAFPID-265141:265091",
          "CSAFPID-265141:265096",
          "CSAFPID-265142:265091",
          "CSAFPID-268971:265091"
        ]
      },
      "release_date": "2019-08-28T16:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-230542:265091",
            "CSAFPID-230542:265096",
            "CSAFPID-239478:265091",
            "CSAFPID-239478:265096",
            "CSAFPID-239479:265091",
            "CSAFPID-239479:265096",
            "CSAFPID-248792:265091",
            "CSAFPID-248792:265096",
            "CSAFPID-248793:265091",
            "CSAFPID-248793:265096",
            "CSAFPID-253295:265091",
            "CSAFPID-253295:265096",
            "CSAFPID-256875:265091",
            "CSAFPID-256875:265096",
            "CSAFPID-265113:265091",
            "CSAFPID-265113:265096",
            "CSAFPID-265117:265096",
            "CSAFPID-265118:265096",
            "CSAFPID-265128:265091",
            "CSAFPID-265141:265091",
            "CSAFPID-265141:265096",
            "CSAFPID-265142:265091",
            "CSAFPID-268971:265091"
          ],
          "url": "https://software.cisco.com"
        },
        {
          "category": "workaround",
          "details": "As a workaround, administrators may reconfigure the SNMP ACL name to 31 characters or less.",
          "product_ids": [
            "CSAFPID-230542:265091",
            "CSAFPID-230542:265096",
            "CSAFPID-239478:265091",
            "CSAFPID-239478:265096",
            "CSAFPID-239479:265091",
            "CSAFPID-239479:265096",
            "CSAFPID-248792:265091",
            "CSAFPID-248792:265096",
            "CSAFPID-248793:265091",
            "CSAFPID-248793:265096",
            "CSAFPID-253295:265091",
            "CSAFPID-253295:265096",
            "CSAFPID-256875:265091",
            "CSAFPID-256875:265096",
            "CSAFPID-265113:265091",
            "CSAFPID-265113:265096",
            "CSAFPID-265117:265096",
            "CSAFPID-265118:265096",
            "CSAFPID-265128:265091",
            "CSAFPID-265141:265091",
            "CSAFPID-265141:265096",
            "CSAFPID-265142:265091",
            "CSAFPID-268971:265091"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-230542:265091",
            "CSAFPID-230542:265096",
            "CSAFPID-239478:265091",
            "CSAFPID-239478:265096",
            "CSAFPID-239479:265091",
            "CSAFPID-239479:265096",
            "CSAFPID-248792:265091",
            "CSAFPID-248792:265096",
            "CSAFPID-248793:265091",
            "CSAFPID-248793:265096",
            "CSAFPID-253295:265091",
            "CSAFPID-253295:265096",
            "CSAFPID-256875:265091",
            "CSAFPID-256875:265096",
            "CSAFPID-265113:265091",
            "CSAFPID-265113:265096",
            "CSAFPID-265117:265096",
            "CSAFPID-265118:265096",
            "CSAFPID-265128:265091",
            "CSAFPID-265141:265091",
            "CSAFPID-265141:265096",
            "CSAFPID-265142:265091",
            "CSAFPID-268971:265091"
          ]
        }
      ],
      "title": "Cisco NX-OS Software SNMP Access Control List Configuration Name Bypass Vulnerability"
    }
  ]
}


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