{
  "id": "CVE-2021-22981",
  "sourceIdentifier": "f5sirt@f5.com",
  "published": "2021-02-12T18:15:12.797",
  "lastModified": "2021-02-19T17:14:08.280",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "On all versions of BIG-IP 12.1.x and 11.6.x, the original TLS protocol includes a weakness in the master secret negotiation that is mitigated by the Extended Master Secret (EMS) extension defined in RFC 7627. TLS connections that do not use EMS are vulnerable to man-in-the-middle attacks during renegotiation. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated."
    },
    {
      "lang": "es",
      "value": "En todas las versiones de BIG-IP 12.1.x y 11.6.x, el protocolo TLS original incluye una debilidad en la negociaci\u00f3n del secreto maestro que es mitigada por la extensi\u00f3n Extended Master Secret (EMS) definida en RFC 7627. Las conexiones TLS que no utilizan EMS son vulnerables a ataques man-in-the-middle durante la renegociaci\u00f3n. Nota: No son evaluadas las versiones de software que han alcanzado End of Software Development (EoSD)"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE",
          "baseScore": 4.8,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 2.5
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.8
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 4.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "11.6.1",
              "versionEndIncluding": "11.6.5",
              "matchCriteriaId": "2FBA9552-4645-4BFF-91A4-47B6A3414325"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "12.1.0",
              "versionEndIncluding": "12.1.5",
              "matchCriteriaId": "6C3B5688-0235-4D4F-A26C-440FF24A1B43"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "11.6.1",
              "versionEndIncluding": "11.6.5",
              "matchCriteriaId": "61D1B91F-8672-4947-AF9A-F635679D0FB7"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "12.1.0",
              "versionEndIncluding": "12.1.5",
              "matchCriteriaId": "151ED6D1-AA85-4213-8F3A-8167CBEC4721"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "11.6.1",
              "versionEndIncluding": "11.6.5",
              "matchCriteriaId": "D8A02AA8-E1CA-487B-AAF3-9AD3206D417E"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "12.1.0",
              "versionEndIncluding": "12.1.5",
              "matchCriteriaId": "322AA283-E494-45E0-975E-2725E2FCC2DE"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "11.6.1",
              "versionEndIncluding": "11.6.5",
              "matchCriteriaId": "C3787453-ECE9-4958-8FD8-8A43A9F86077"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "12.1.0",
              "versionEndIncluding": "12.1.5",
              "matchCriteriaId": "5D5AA99B-08E7-4959-A3B4-41AA527B4B22"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "11.6.1",
              "versionEndIncluding": "11.6.5",
              "matchCriteriaId": "05ED802A-A8A0-4E96-AB45-811A98AA11C2"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "12.1.0",
              "versionEndIncluding": "12.1.5",
              "matchCriteriaId": "9DC86A5F-C793-4848-901F-04BFB57A07F6"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "11.6.1",
              "versionEndIncluding": "11.6.5",
              "matchCriteriaId": "B15992E6-85B6-4E62-A284-FE4B78F5F373"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "12.1.0",
              "versionEndIncluding": "12.1.5",
              "matchCriteriaId": "2E5552A3-91CD-4B97-AD33-4F1FB4C8827A"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "11.6.1",
              "versionEndIncluding": "11.6.5",
              "matchCriteriaId": "70F9B5A0-0EF7-4D2E-B8DF-EA3508BF4B61"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "12.1.0",
              "versionEndIncluding": "12.1.5",
              "matchCriteriaId": "2E42E5C6-2E8F-4879-A5A9-3FE8422D0445"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "11.6.1",
              "versionEndIncluding": "11.6.5",
              "matchCriteriaId": "8376922B-0D04-4E5D-BADE-0D6AC23A4696"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "12.1.0",
              "versionEndIncluding": "12.1.5",
              "matchCriteriaId": "55C2EC23-E78F-4447-BACF-21FC36ABF155"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "11.6.1",
              "versionEndIncluding": "11.6.5",
              "matchCriteriaId": "0471086D-B70E-4B87-862E-01FB99B0D5D5"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "12.1.0",
              "versionEndIncluding": "12.1.5",
              "matchCriteriaId": "945A19E8-51EB-42FE-9BF1-12DAC78B5286"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "11.6.1",
              "versionEndIncluding": "11.6.5",
              "matchCriteriaId": "CD3D5803-35A0-4FF7-9AD3-E345C53A18FC"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "12.1.0",
              "versionEndIncluding": "12.1.5",
              "matchCriteriaId": "EB5007D0-BBDB-4D74-9C88-98FBA74757D1"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "11.6.1",
              "versionEndIncluding": "11.6.5",
              "matchCriteriaId": "E20DFBD1-5469-4330-81B1-078D6487C01D"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "12.1.0",
              "versionEndIncluding": "12.1.5",
              "matchCriteriaId": "B7725810-66D2-4460-A174-9F3BFAD966F2"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "11.6.1",
              "versionEndIncluding": "11.6.5",
              "matchCriteriaId": "F92F2449-8A6E-431E-8CB1-5255D2464B31"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "12.1.0",
              "versionEndIncluding": "12.1.5",
              "matchCriteriaId": "EFD760FE-4347-4D36-B5C6-4009398060F2"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "11.6.1",
              "versionEndIncluding": "11.6.5",
              "matchCriteriaId": "53F940F3-6CF4-48C8-BFBF-4FE9B3A26D31"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "12.1.0",
              "versionEndIncluding": "12.1.5",
              "matchCriteriaId": "65B76F53-7D8B-477E-8B6E-91AC0A9009FF"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_ssl_orchestrator:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "11.6.1",
              "versionEndIncluding": "11.6.5",
              "matchCriteriaId": "2B12C324-109D-42BB-82E9-702C946491BB"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:f5:big-ip_ssl_orchestrator:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "12.1.0",
              "versionEndIncluding": "12.1.5",
              "matchCriteriaId": "440C631C-1C66-4A26-BE28-D3D1CCC4AD2F"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://support.f5.com/csp/article/K09121542",
      "source": "f5sirt@f5.com",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}