{
  "document": {
    "acknowledgments": [
      {
        "summary": "CVE-2021-34755: This vulnerability was found by Ilkin Gasimov of Cisco during internal security testing.\r\n\r\nCVE-2021-34756 and CVE-2021-34752: These vulnerabilities were found by Brandon Sakai of Cisco during internal security testing."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "Multiple vulnerabilities in the CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute arbitrary commands with root privileges.\r\n\r\nFor more information about these vulnerabilities, see the Details [\"#details\"] section of this advisory.\r\n\r\nCisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.\r\n\r\n\r\n\r\nThis advisory is part of the October 2021 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication. For a complete list of the advisories and links to them, see Cisco Event Response: October 2021 Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication [\"https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74773\"].",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "These vulnerabilities affect Cisco FTD Software.\r\n\r\nFor information about which Cisco software releases are vulnerable, see the Fixed Software [\"#fs\"] section of this advisory.\r\n  Determine the Affected FTD Software Configuration\r\nIn the following table, the left column indicates the Cisco FTD Software configuration and the right column indicates the associated Cisco CVE IDs that are described in the Details [\"#details\"] section of this advisory.\r\n                                Cisco FTD Configuration              Associated CVE IDs                                              Multi-instance1,2              CVE-2021-34755 and CVE-2021-34756                                  Default              CVE-2021-34752\r\n\r\n1. The multi-instance configuration is supported as of Cisco FTD Software Release 6.3.0, so earlier releases are not affected by these multi-instance vulnerabilities.\r\n\r\n2. The only Cisco FTD Software platforms that support multi-instance operation are:\r\n\r\nFirepower 4100 Series Security Appliances\r\nFirepower 9300 Series Security Appliances\r\n  Determine the Device Configuration\r\nNote: This section applies only to CVE-2021-34755 and CVE-2021-34756, which require multi-instance configuration.\r\n\r\nTo determine whether a device is providing multi-instance services, log in to the Cisco FXOS CLI and use the show app-instance command within the ssa scope. If the Deploy Type field has a value of Container, application instances are present and the device is affected by this vulnerability. The following example shows the command output for an affected device:\r\n\r\n firepower# scope ssa\r\nfirepower /ssa # show app-instance\r\n                                App Name              Identifier              Slot ID              Admin State              Oper State              Running Version              Startup Version              Deploy Type              Turbo Mode              Profile Name              Cluster State              Cluster Role                                  -----              -------              ------              ------              -----              -------              -------              ------              -----              -----              -------              -------                                  ftd              ftd1              1              Enabled              Online              6.2.3.14              6.2.3.14              Native              No                             Not Applicable              None                                  ftd              ftd2-1              2              Enabled              Online              6.4.0.4              6.4.0.4              Container              No              mid              Not Applicable              None",
        "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 these vulnerabilities.\r\n\r\nCisco has confirmed that these vulnerabilities do not affect Cisco Adaptive Security Appliance (ASA) Software or Cisco Firepower Management Center (FMC) Software.",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "The vulnerabilities are not dependent on one another. Exploitation of one of the vulnerabilities is not required to exploit another vulnerability. In addition, a software release that is affected by one of the vulnerabilities may not be affected by the other vulnerabilities.\r\n\r\nDetails about the vulnerabilities are as follows:\r\n\r\nCVE-2021-34755 and CVE-2021-34756: Cisco FTD Software Command Injection Vulnerabilities\r\n\r\nMultiple vulnerabilities in the CLI of Cisco FTD Software could allow an authenticated, local attacker to execute arbitrary commands with root privileges on the underlying operating system of an affected device that is running in multi-instance mode.\r\n\r\nThese vulnerabilities are due to insufficient validation of user-supplied command arguments. An attacker could exploit these vulnerabilities by submitting crafted input to the affected command. A successful exploit could allow the attacker to execute commands with root privileges on the underlying operating system.\r\n\r\nCisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.\r\n\r\nBug ID(s): CSCvx86283 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx86283\"], CSCvy16559 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvy16559\"]\r\nCVE IDs: CVE-2021-34755 and CVE-2021-34756\r\nSecurity Impact Rating (SIR): High\r\nCVSS Base Score: 7.8\r\nCVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\r\n\r\nCVE-2021-34752: Cisco FTD Software Command Injection Vulnerability\r\n\r\nA vulnerability in the CLI of Cisco FTD Software could allow an authenticated, local attacker with administrative privileges to execute arbitrary commands with root privileges on the underlying operating system of an affected device.\r\n\r\nThis vulnerability is due to insufficient validation of user-supplied command arguments. An attacker could exploit this vulnerability by submitting crafted input to the affected commands. A successful exploit could allow the attacker to execute commands with root privileges on the underlying operating system.\r\n\r\nCisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.\r\n\r\nBug ID(s): CSCvy16573 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvy16573\"], CSCvy19225 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvy19225\"]\r\nCVE ID: CVE-2021-34752\r\nSecurity Impact Rating (SIR): Medium\r\nCVSS Base Score: 6.7\r\nCVSS Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
        "title": "Details"
      },
      {
        "category": "general",
        "text": "There are no workarounds that address these vulnerabilities.",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "Cisco has released free software updates that address the vulnerabilities described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license:\r\nhttps://www.cisco.com/c/en/us/products/end-user-license-agreement.html [\"https://www.cisco.com/c/en/us/products/end-user-license-agreement.html\"]\r\n\r\nAdditionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.\r\n\r\nWhen considering software upgrades [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"], customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page [\"https://www.cisco.com/go/psirt\"], to determine exposure and a complete upgrade solution.\r\n\r\nIn all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.\r\n  Customers Without Service Contracts\r\nCustomers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC: https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html [\"https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html\"]\r\n\r\nCustomers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.\r\n      Fixed Releases\r\nIn the following table(s), the left column lists Cisco software releases. The center column indicates whether a release is affected by the vulnerability described in this advisory and the first release that includes the fix for this vulnerability. The right column indicates whether a release is affected by any of the vulnerabilities described in this bundle and which release includes fixes for those vulnerabilities.\r\n\r\nFTD Software\r\n                                Cisco FTD Software Release              First Fixed Release for This Vulnerability              First Fixed Release for All Vulnerabilities Described in the Bundle of Advisories                                              6.2.2 and earlier1              Migrate to a fixed release.              Migrate to a fixed release.                                  6.2.3              Migrate to a fixed release.              Migrate to a fixed release.                                  6.3.01              Migrate to a fixed release.              Migrate to a fixed release.                                  6.4.0              6.4.0.13 (Nov 2021)              6.4.0.13 (Nov 2021)                                  6.5.01              Migrate to a fixed release.              Migrate to a fixed release.                                  6.6.0              6.6.5              6.6.5.1 (Nov 2021)                                  6.7.0              6.7.0.3 (Jan 2022)              6.7.0.3 (Jan 2022)                                  7.0.0              7.0.1              7.0.1\r\n\r\n1. Cisco FMC and FTD Software releases 6.2.2 and earlier, as well as releases 6.3.0 and 6.5.0, have reached end of software maintenance [\"https://www.cisco.com/c/en/us/products/eos-eol-listing.html\"]. Customers are advised to migrate to a supported release that includes the fix for these vulnerabilities.\r\nFor instructions on upgrading your FTD device, see Cisco Firepower Management Center Upgrade Guide [\"https://www.cisco.com/c/en/us/td/docs/security/firepower/upgrade/fpmc-upgrade-guide/getting_started.html\"].\r\n\r\nThe Cisco Product Security Incident Response Team (PSIRT) validates only the affected and fixed release information that is documented in this advisory.",
        "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 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": "CVE-2021-34755: This vulnerability was found by Ilkin Gasimov of Cisco during internal security testing.\r\n\r\nCVE-2021-34756 and CVE-2021-34752: These vulnerabilities were found by Brandon Sakai of Cisco during internal security testing.",
        "title": "Source"
      },
      {
        "category": "legal_disclaimer",
        "text": "THIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.\r\n\r\nA standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products.",
        "title": "Legal Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "psirt@cisco.com",
      "issuing_authority": "Cisco PSIRT",
      "name": "Cisco",
      "namespace": "https://wwww.cisco.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "Cisco Firepower Threat Defense Software Command Injection Vulnerabilities",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-cmdinject-FmzsLN8"
      },
      {
        "category": "external",
        "summary": "Cisco Event Response: October 2021 Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication",
        "url": "https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74773"
      },
      {
        "category": "external",
        "summary": "Cisco Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      },
      {
        "category": "external",
        "summary": "CSCvx86283",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx86283"
      },
      {
        "category": "external",
        "summary": "CSCvy16559",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvy16559"
      },
      {
        "category": "external",
        "summary": "CSCvy16573",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvy16573"
      },
      {
        "category": "external",
        "summary": "CSCvy19225",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvy19225"
      },
      {
        "category": "external",
        "summary": "https://www.cisco.com/c/en/us/products/end-user-license-agreement.html",
        "url": "https://www.cisco.com/c/en/us/products/end-user-license-agreement.html"
      },
      {
        "category": "external",
        "summary": "considering software upgrades",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
      },
      {
        "category": "external",
        "summary": "Cisco\u0026nbsp;Security Advisories page",
        "url": "https://www.cisco.com/go/psirt"
      },
      {
        "category": "external",
        "summary": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html",
        "url": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html"
      },
      {
        "category": "external",
        "summary": "end of software maintenance",
        "url": "https://www.cisco.com/c/en/us/products/eos-eol-listing.html"
      },
      {
        "category": "external",
        "summary": "Cisco\u0026nbsp;Firepower Management Center Upgrade Guide",
        "url": "https://www.cisco.com/c/en/us/td/docs/security/firepower/upgrade/fpmc-upgrade-guide/getting_started.html"
      }
    ],
    "title": "Cisco Firepower Threat Defense Software Command Injection Vulnerabilities",
    "tracking": {
      "current_release_date": "2021-10-27T16:00:00+00:00",
      "generator": {
        "date": "2024-05-10T23:10:50+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-ftd-cmdinject-FmzsLN8",
      "initial_release_date": "2021-10-27T16:00:00+00:00",
      "revision_history": [
        {
          "date": "2021-10-27T15:39:25+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": "6.2.3",
                    "product": {
                      "name": "6.2.3",
                      "product_id": "CSAFPID-233334"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "6.2.3.10",
                    "product": {
                      "name": "6.2.3.10",
                      "product_id": "CSAFPID-258063"
                    }
                  }
                ],
                "category": "product_version",
                "name": "6.2"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "6.6.0.1",
                    "product": {
                      "name": "6.6.0.1",
                      "product_id": "CSAFPID-278885"
                    }
                  }
                ],
                "category": "product_version",
                "name": "6.6"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "6.4.0.3",
                    "product": {
                      "name": "6.4.0.3",
                      "product_id": "CSAFPID-265950"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "6.4.0.6",
                    "product": {
                      "name": "6.4.0.6",
                      "product_id": "CSAFPID-276933"
                    }
                  }
                ],
                "category": "product_version",
                "name": "6.4"
              }
            ],
            "category": "product_family",
            "name": "Cisco Firepower Threat Defense Software"
          },
          {
            "category": "product_family",
            "name": "Cisco Firepower Threat Defense Software",
            "product": {
              "name": "Cisco Firepower Threat Defense Software ",
              "product_id": "CSAFPID-220203"
            }
          },
          {
            "category": "product_name",
            "name": "Cisco Firepower 9000 Series",
            "product": {
              "name": "Cisco Firepower 9000 Series",
              "product_id": "CSAFPID-277440"
            }
          },
          {
            "category": "product_name",
            "name": "Cisco Firepower 4100 Series",
            "product": {
              "name": "Cisco Firepower 4100 Series",
              "product_id": "CSAFPID-277441"
            }
          },
          {
            "category": "product_name",
            "name": "Cisco Secure Firewall Threat Defense Virtual",
            "product": {
              "name": "Cisco Secure Firewall Threat Defense Virtual",
              "product_id": "CSAFPID-277464"
            }
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ],
    "relationships": [
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco Firepower Threat Defense Software 6.2.3 when installed on Cisco Secure Firewall Threat Defense Virtual",
          "product_id": "CSAFPID-233334:277464"
        },
        "product_reference": "CSAFPID-233334",
        "relates_to_product_reference": "CSAFPID-277464"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco Firepower Threat Defense Software 6.2.3.10 when installed on Cisco Firepower 9000 Series",
          "product_id": "CSAFPID-258063:277440"
        },
        "product_reference": "CSAFPID-258063",
        "relates_to_product_reference": "CSAFPID-277440"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco Firepower Threat Defense Software 6.6.0.1 when installed on Cisco Firepower 9000 Series",
          "product_id": "CSAFPID-278885:277440"
        },
        "product_reference": "CSAFPID-278885",
        "relates_to_product_reference": "CSAFPID-277440"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco Firepower Threat Defense Software 6.4.0.3 when installed on Cisco Firepower 4100 Series",
          "product_id": "CSAFPID-265950:277441"
        },
        "product_reference": "CSAFPID-265950",
        "relates_to_product_reference": "CSAFPID-277441"
      },
      {
        "category": "installed_on",
        "full_product_name": {
          "name": "Cisco Firepower Threat Defense Software 6.4.0.6 when installed on Cisco Secure Firewall Threat Defense Virtual",
          "product_id": "CSAFPID-276933:277464"
        },
        "product_reference": "CSAFPID-276933",
        "relates_to_product_reference": "CSAFPID-277464"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-34755",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvx86283"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-258063:277440",
          "CSAFPID-265950:277441"
        ]
      },
      "release_date": "2021-10-27T16:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-258063:277440",
            "CSAFPID-265950:277441"
          ],
          "url": "https://software.cisco.com"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-258063:277440",
            "CSAFPID-265950:277441"
          ]
        }
      ],
      "title": "Cisco Firepower Threat Defense Software Command Injection Vulnerability"
    },
    {
      "cve": "CVE-2021-34756",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvy16559"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-220203"
        ]
      },
      "release_date": "2021-10-27T16:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-220203"
          ],
          "url": "https://software.cisco.com"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-220203"
          ]
        }
      ],
      "title": "Cisco Firepower Threat Defense Software Command Injection Vulnerability"
    },
    {
      "cve": "CVE-2021-34752",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvy16573"
        },
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvy19225"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-233334:277464",
          "CSAFPID-276933:277464",
          "CSAFPID-278885:277440"
        ]
      },
      "release_date": "2021-10-27T16:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-233334:277464",
            "CSAFPID-276933:277464",
            "CSAFPID-278885:277440"
          ],
          "url": "https://software.cisco.com"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-233334:277464",
            "CSAFPID-276933:277464",
            "CSAFPID-278885:277440"
          ]
        }
      ],
      "title": "Cisco Firepower Threat Defense Command Injection Vulnerabilities"
    }
  ]
}