{
  "id": "CVE-2021-26084",
  "sourceIdentifier": "security@atlassian.com",
  "published": "2021-08-30T07:15:06.587",
  "lastModified": "2022-06-10T14:26:16.320",
  "vulnStatus": "Analyzed",
  "cisaExploitAdd": "2021-11-03",
  "cisaActionDue": "2021-11-17",
  "cisaRequiredAction": "Apply updates per vendor instructions.",
  "cisaVulnerabilityName": "Atlassian Confluence Server < 6.13.23, 6.14.0 - 7.12.5 Arbitrary Code Execution",
  "descriptions": [
    {
      "lang": "en",
      "value": "In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5."
    },
    {
      "lang": "es",
      "value": "En las versiones afectadas de Confluence Server y Data Center, se presenta una vulnerabilidad de inyecci\u00f3n OGNL que permitir\u00eda a un usuario no autenticado ejecutar c\u00f3digo arbitrario en una instancia de Confluence Server o Data Center. Las versiones afectadas son las versiones anteriores a 6.13.23, desde versiones 6.14.0 anteriores a 7.4.11, desde versiones 7.5.0 anteriores a 7.11.6 y desde versiones 7.12.0 anteriores a 7.12.5."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5
        },
        "baseSeverity": "HIGH",
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-74"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "6.13.23",
              "matchCriteriaId": "6A28735F-4827-4410-8B0B-C209ECD21DFC"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.14.0",
              "versionEndExcluding": "7.4.11",
              "matchCriteriaId": "FA5224DF-97AB-4D8E-B66D-FC65A1333531"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.5.0",
              "versionEndExcluding": "7.11.6",
              "matchCriteriaId": "E776BF66-74F1-4D8E-9099-42A4E5EEE300"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.12.0",
              "versionEndExcluding": "7.12.5",
              "matchCriteriaId": "E11303D6-258F-4FAC-A868-BF506E7F5A4E"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "6.13.23",
              "matchCriteriaId": "6D1FF67F-3FB4-4C0C-8263-3D4CA00A02CD"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.14.0",
              "versionEndExcluding": "7.4.11",
              "matchCriteriaId": "F5CCD4D0-6BC7-442A-9D4D-43841FE40F3E"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.5.0",
              "versionEndExcluding": "7.11.6",
              "matchCriteriaId": "DF59072C-9911-4035-A75A-27D882988919"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.12.0",
              "versionEndExcluding": "7.12.5",
              "matchCriteriaId": "BFEE2534-EBEF-438B-B616-ED4FFBC9246E"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html",
      "source": "security@atlassian.com",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "https://jira.atlassian.com/browse/CONFSERVER-67940",
      "source": "security@atlassian.com",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Vendor Advisory"
      ]
    }
  ]
}