{
  "id": "CVE-2021-27351",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2021-02-19T19:15:12.690",
  "lastModified": "2022-05-23T22:18:15.767",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "The Terminate Session feature in the Telegram application through 7.2.1 for Android, and through 2.4.7 for Windows and UNIX, fails to invalidate a recently active session."
    },
    {
      "lang": "es",
      "value": "La funcionalidad Terminate Session en la aplicaci\u00f3n Telegram hasta la versi\u00f3n 7.2.1 para Android, y hasta la versi\u00f3n 2.4.7 para Windows y UNIX, presenta una fallo al invalidar una sesi\u00f3n activa recientemente"
    }
  ],
  "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:N/I:L/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-613"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:telegram:telegram:*:*:*:*:*:unix:*:*",
              "versionEndIncluding": "2.4.7",
              "matchCriteriaId": "2F800B5C-6AB3-4177-B2FB-23AB42F9D754"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:telegram:telegram:*:*:*:*:*:windows:*:*",
              "versionEndIncluding": "2.4.7",
              "matchCriteriaId": "F685C105-8269-4DE8-BA20-323B9EB1323E"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:telegram:telegram:*:*:*:*:*:android:*:*",
              "versionEndIncluding": "7.2.1",
              "matchCriteriaId": "F00955F1-BB6E-4BD9-8807-F8A9FE2A87A3"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://0ffsecninja.github.io/Telegram:CVE-2021-2735.html",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://security.gentoo.org/glsa/202105-07",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    }
  ]
}