CVE-2021-40125
Vulnerability from cvelistv5
Published
2021-10-27 18:50
Modified
2024-11-07 21:46
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. This vulnerability is due to improper control of a resource. An attacker with the ability to spoof a trusted IKEv2 site-to-site VPN peer and in possession of valid IKEv2 credentials for that peer could exploit this vulnerability by sending malformed, authenticated IKEv2 messages to an affected device. A successful exploit could allow the attacker to trigger a reload of the device.
References
ykramarz@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-g4cmrr7CVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-g4cmrr7CVendor Advisory
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T02:27:31.867Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20211027 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv2 Site-to-Site VPN Denial of Service Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-g4cmrr7C"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-40125",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-07T21:39:51.828851Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-07T21:46:26.254Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco Adaptive Security Appliance (ASA) Software",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2021-10-27T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. This vulnerability is due to improper control of a resource. An attacker with the ability to spoof a trusted IKEv2 site-to-site VPN peer and in possession of valid IKEv2 credentials for that peer could exploit this vulnerability by sending malformed, authenticated IKEv2 messages to an affected device. A successful exploit could allow the attacker to trigger a reload of the device."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-10-27T18:50:09",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "20211027 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv2 Site-to-Site VPN Denial of Service Vulnerability",
          "tags": [
            "vendor-advisory",
            "x_refsource_CISCO"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-g4cmrr7C"
        }
      ],
      "source": {
        "advisory": "cisco-sa-asaftd-ikev2-dos-g4cmrr7C",
        "defect": [
          [
            "CSCvy93480"
          ]
        ],
        "discovery": "INTERNAL"
      },
      "title": "Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv2 Site-to-Site VPN Denial of Service Vulnerability",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "DATE_PUBLIC": "2021-10-27T16:00:00",
          "ID": "CVE-2021-40125",
          "STATE": "PUBLIC",
          "TITLE": "Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv2 Site-to-Site VPN Denial of Service Vulnerability"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Cisco Adaptive Security Appliance (ASA) Software",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Cisco"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. This vulnerability is due to improper control of a resource. An attacker with the ability to spoof a trusted IKEv2 site-to-site VPN peer and in possession of valid IKEv2 credentials for that peer could exploit this vulnerability by sending malformed, authenticated IKEv2 messages to an affected device. A successful exploit could allow the attacker to trigger a reload of the device."
            }
          ]
        },
        "exploit": [
          {
            "lang": "en",
            "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
          }
        ],
        "impact": {
          "cvss": {
            "baseScore": "5.3",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-416"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "20211027 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv2 Site-to-Site VPN Denial of Service Vulnerability",
              "refsource": "CISCO",
              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-g4cmrr7C"
            }
          ]
        },
        "source": {
          "advisory": "cisco-sa-asaftd-ikev2-dos-g4cmrr7C",
          "defect": [
            [
              "CSCvy93480"
            ]
          ],
          "discovery": "INTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2021-40125",
    "datePublished": "2021-10-27T18:50:09.794256Z",
    "dateReserved": "2021-08-25T00:00:00",
    "dateUpdated": "2024-11-07T21:46:26.254Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"6.4.0.13\", \"matchCriteriaId\": \"5429F29E-BEE8-4989-B5F3-A9BABBF64D31\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.6.0\", \"versionEndExcluding\": \"6.6.5\", \"matchCriteriaId\": \"37A74256-AF9A-473B-9DC7-A57618BA9F00\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.7.0\", \"versionEndExcluding\": \"6.7.0.3\", \"matchCriteriaId\": \"98DEDDAB-B8C5-4753-A208-94638E694FC1\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"7.0.0\", \"versionEndExcluding\": \"7.0.1\", \"matchCriteriaId\": \"7B2F537A-A488-45B6-AD4B-48B7064AE84C\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"9.8.0\", \"versionEndExcluding\": \"9.8.4.40\", \"matchCriteriaId\": \"8F6EF272-6D43-476C-B35D-DDE79A7A01C5\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"9.9.0\", \"versionEndExcluding\": \"9.12.4.30\", \"matchCriteriaId\": \"36510038-2C7B-45D4-8531-C0FFD3D913F4\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"9.14.0\", \"versionEndExcluding\": \"9.14.3.9\", \"matchCriteriaId\": \"C6828628-B179-4188-92CE-1D488859D92D\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"9.15.0\", \"versionEndExcluding\": \"9.15.1.17\", \"matchCriteriaId\": \"F6EC0723-CBC7-45A7-8B30-B680E8A771EF\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"9.16.0\", \"versionEndExcluding\": \"9.16.2\", \"matchCriteriaId\": \"25DBA8C5-EB2F-4C01-88BA-EC2D720F9F7C\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:asa_5512-x_firmware:009.016\\\\(001.025\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"BEEEB3EB-7AD9-4498-BEE5-12A374AEF0FC\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"08F0F160-DAD2-48D4-B7B2-4818B2526F35\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:asa_5505_firmware:009.016\\\\(001.025\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"74DF1599-7739-47DD-AD89-B9C48D1ED2EC\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asa_5505:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"8E6A8BB7-2000-4CA2-9DD7-89573CE4C73A\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:asa_5515-x_firmware:009.016\\\\(001.025\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"96EDFC77-6634-4427-98F8-ACDC704F670F\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"977D597B-F6DE-4438-AB02-06BE64D71EBE\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:asa_5525-x_firmware:009.016\\\\(001.025\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"AD551733-BBAE-4FE3-8E20-877084CA5E5D\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"EB71EB29-0115-4307-A9F7-262394FD9FB0\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:asa_5545-x_firmware:009.016\\\\(001.025\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"1819434E-FE47-4544-8BCB-D1765760E1BB\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"57179F60-E330-4FF0-9664-B1E4637FF210\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:asa_5555-x_firmware:009.016\\\\(001.025\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"FB65CEFA-1874-438A-B4F3-9DE96564D291\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"5535C936-391B-4619-AA03-B35265FC15D7\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:asa_5580_firmware:009.016\\\\(001.025\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"4BED5416-48BE-48A4-9209-DD22BC247819\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asa_5580:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"D1E828B8-5ECC-4A09-B2AD-DEDC558713DE\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:asa_5585-x_firmware:009.016\\\\(001.025\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"C7A8E03D-F2C3-4766-B004-961B58C172E2\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asa_5585-x:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"16AE20C2-C77E-4E04-BF13-A48696E52426\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. This vulnerability is due to improper control of a resource. An attacker with the ability to spoof a trusted IKEv2 site-to-site VPN peer and in possession of valid IKEv2 credentials for that peer could exploit this vulnerability by sending malformed, authenticated IKEv2 messages to an affected device. A successful exploit could allow the attacker to trigger a reload of the device.\"}, {\"lang\": \"es\", \"value\": \"Una vulnerabilidad en la implementaci\\u00f3n del Intercambio de Claves de Internet Versi\\u00f3n 2 (IKEv2) del software Cisco Adaptive Security Appliance (ASA) y del software Cisco Firepower Threat Defense (FTD) podr\\u00eda permitir a un atacante remoto autenticado desencadenar una condici\\u00f3n de denegaci\\u00f3n de servicio (DoS) en un dispositivo afectado. Esta vulnerabilidad es debido a un control inapropiado de un recurso. Un atacante con la capacidad de falsificar un peer IKEv2 site-to-site VPN confiable y en posesi\\u00f3n de credenciales IKEv2 v\\u00e1lidas para ese peer podr\\u00eda explotar esta vulnerabilidad mediante el env\\u00edo de mensajes IKEv2 malformados y autenticados a un dispositivo afectado. Una explotaci\\u00f3n con \\u00e9xito podr\\u00eda permitir al atacante desencadenar una recarga del dispositivo\"}]",
      "id": "CVE-2021-40125",
      "lastModified": "2024-11-21T06:23:37.697",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"ykramarz@cisco.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.6, \"impactScore\": 3.6}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 6.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:M/Au:S/C:N/I:N/A:C\", \"baseScore\": 6.3, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"MEDIUM\", \"authentication\": \"SINGLE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"COMPLETE\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 6.8, \"impactScore\": 6.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2021-10-27T19:15:08.877",
      "references": "[{\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-g4cmrr7C\", \"source\": \"ykramarz@cisco.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-g4cmrr7C\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
      "sourceIdentifier": "ykramarz@cisco.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"ykramarz@cisco.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-416\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-400\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-40125\",\"sourceIdentifier\":\"ykramarz@cisco.com\",\"published\":\"2021-10-27T19:15:08.877\",\"lastModified\":\"2024-11-21T06:23:37.697\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. This vulnerability is due to improper control of a resource. An attacker with the ability to spoof a trusted IKEv2 site-to-site VPN peer and in possession of valid IKEv2 credentials for that peer could exploit this vulnerability by sending malformed, authenticated IKEv2 messages to an affected device. A successful exploit could allow the attacker to trigger a reload of the device.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad en la implementaci\u00f3n del Intercambio de Claves de Internet Versi\u00f3n 2 (IKEv2) del software Cisco Adaptive Security Appliance (ASA) y del software Cisco Firepower Threat Defense (FTD) podr\u00eda permitir a un atacante remoto autenticado desencadenar una condici\u00f3n de denegaci\u00f3n de servicio (DoS) en un dispositivo afectado. Esta vulnerabilidad es debido a un control inapropiado de un recurso. Un atacante con la capacidad de falsificar un peer IKEv2 site-to-site VPN confiable y en posesi\u00f3n de credenciales IKEv2 v\u00e1lidas para ese peer podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de mensajes IKEv2 malformados y autenticados a un dispositivo afectado. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante desencadenar una recarga del dispositivo\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"ykramarz@cisco.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.6,\"impactScore\":3.6},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:S/C:N/I:N/A:C\",\"baseScore\":6.3,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":6.8,\"impactScore\":6.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"ykramarz@cisco.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-400\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.4.0.13\",\"matchCriteriaId\":\"5429F29E-BEE8-4989-B5F3-A9BABBF64D31\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.6.0\",\"versionEndExcluding\":\"6.6.5\",\"matchCriteriaId\":\"37A74256-AF9A-473B-9DC7-A57618BA9F00\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7.0\",\"versionEndExcluding\":\"6.7.0.3\",\"matchCriteriaId\":\"98DEDDAB-B8C5-4753-A208-94638E694FC1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"7.0.0\",\"versionEndExcluding\":\"7.0.1\",\"matchCriteriaId\":\"7B2F537A-A488-45B6-AD4B-48B7064AE84C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"9.8.0\",\"versionEndExcluding\":\"9.8.4.40\",\"matchCriteriaId\":\"8F6EF272-6D43-476C-B35D-DDE79A7A01C5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"9.9.0\",\"versionEndExcluding\":\"9.12.4.30\",\"matchCriteriaId\":\"36510038-2C7B-45D4-8531-C0FFD3D913F4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"9.14.0\",\"versionEndExcluding\":\"9.14.3.9\",\"matchCriteriaId\":\"C6828628-B179-4188-92CE-1D488859D92D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"9.15.0\",\"versionEndExcluding\":\"9.15.1.17\",\"matchCriteriaId\":\"F6EC0723-CBC7-45A7-8B30-B680E8A771EF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"9.16.0\",\"versionEndExcluding\":\"9.16.2\",\"matchCriteriaId\":\"25DBA8C5-EB2F-4C01-88BA-EC2D720F9F7C\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:asa_5512-x_firmware:009.016\\\\(001.025\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BEEEB3EB-7AD9-4498-BEE5-12A374AEF0FC\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"08F0F160-DAD2-48D4-B7B2-4818B2526F35\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:asa_5505_firmware:009.016\\\\(001.025\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"74DF1599-7739-47DD-AD89-B9C48D1ED2EC\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asa_5505:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8E6A8BB7-2000-4CA2-9DD7-89573CE4C73A\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:asa_5515-x_firmware:009.016\\\\(001.025\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"96EDFC77-6634-4427-98F8-ACDC704F670F\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"977D597B-F6DE-4438-AB02-06BE64D71EBE\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:asa_5525-x_firmware:009.016\\\\(001.025\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AD551733-BBAE-4FE3-8E20-877084CA5E5D\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"EB71EB29-0115-4307-A9F7-262394FD9FB0\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:asa_5545-x_firmware:009.016\\\\(001.025\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1819434E-FE47-4544-8BCB-D1765760E1BB\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"57179F60-E330-4FF0-9664-B1E4637FF210\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:asa_5555-x_firmware:009.016\\\\(001.025\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FB65CEFA-1874-438A-B4F3-9DE96564D291\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5535C936-391B-4619-AA03-B35265FC15D7\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:asa_5580_firmware:009.016\\\\(001.025\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4BED5416-48BE-48A4-9209-DD22BC247819\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asa_5580:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D1E828B8-5ECC-4A09-B2AD-DEDC558713DE\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:asa_5585-x_firmware:009.016\\\\(001.025\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C7A8E03D-F2C3-4766-B004-961B58C172E2\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asa_5585-x:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"16AE20C2-C77E-4E04-BF13-A48696E52426\"}]}]}],\"references\":[{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-g4cmrr7C\",\"source\":\"ykramarz@cisco.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-g4cmrr7C\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-g4cmrr7C\", \"name\": \"20211027 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv2 Site-to-Site VPN Denial of Service Vulnerability\", \"tags\": [\"vendor-advisory\", \"x_refsource_CISCO\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T02:27:31.867Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-40125\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-11-07T21:39:51.828851Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-11-07T21:40:38.434Z\"}}], \"cna\": {\"title\": \"Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv2 Site-to-Site VPN Denial of Service Vulnerability\", \"source\": {\"defect\": [[\"CSCvy93480\"]], \"advisory\": \"cisco-sa-asaftd-ikev2-dos-g4cmrr7C\", \"discovery\": \"INTERNAL\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"Cisco\", \"product\": \"Cisco Adaptive Security Appliance (ASA) Software\", \"versions\": [{\"status\": \"affected\", \"version\": \"n/a\"}]}], \"exploits\": [{\"lang\": \"en\", \"value\": \"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.\"}], \"datePublic\": \"2021-10-27T00:00:00\", \"references\": [{\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-g4cmrr7C\", \"name\": \"20211027 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv2 Site-to-Site VPN Denial of Service Vulnerability\", \"tags\": [\"vendor-advisory\", \"x_refsource_CISCO\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. This vulnerability is due to improper control of a resource. An attacker with the ability to spoof a trusted IKEv2 site-to-site VPN peer and in possession of valid IKEv2 credentials for that peer could exploit this vulnerability by sending malformed, authenticated IKEv2 messages to an affected device. A successful exploit could allow the attacker to trigger a reload of the device.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2021-10-27T18:50:09\"}, \"x_legacyV4Record\": {\"impact\": {\"cvss\": {\"version\": \"3.0\", \"baseScore\": \"5.3\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H\"}}, \"source\": {\"defect\": [[\"CSCvy93480\"]], \"advisory\": \"cisco-sa-asaftd-ikev2-dos-g4cmrr7C\", \"discovery\": \"INTERNAL\"}, \"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"version\": {\"version_data\": [{\"version_value\": \"n/a\"}]}, \"product_name\": \"Cisco Adaptive Security Appliance (ASA) Software\"}]}, \"vendor_name\": \"Cisco\"}]}}, \"exploit\": [{\"lang\": \"en\", \"value\": \"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.\"}], \"data_type\": \"CVE\", \"references\": {\"reference_data\": [{\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-g4cmrr7C\", \"name\": \"20211027 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv2 Site-to-Site VPN Denial of Service Vulnerability\", \"refsource\": \"CISCO\"}]}, \"data_format\": \"MITRE\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. This vulnerability is due to improper control of a resource. An attacker with the ability to spoof a trusted IKEv2 site-to-site VPN peer and in possession of valid IKEv2 credentials for that peer could exploit this vulnerability by sending malformed, authenticated IKEv2 messages to an affected device. A successful exploit could allow the attacker to trigger a reload of the device.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"CWE-416\"}]}]}, \"data_version\": \"4.0\", \"CVE_data_meta\": {\"ID\": \"CVE-2021-40125\", \"STATE\": \"PUBLIC\", \"TITLE\": \"Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv2 Site-to-Site VPN Denial of Service Vulnerability\", \"ASSIGNER\": \"psirt@cisco.com\", \"DATE_PUBLIC\": \"2021-10-27T16:00:00\"}}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-40125\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-07T21:46:26.254Z\", \"dateReserved\": \"2021-08-25T00:00:00\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2021-10-27T18:50:09.794256Z\", \"assignerShortName\": \"cisco\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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.