gsd-2021-38502
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Thunderbird ignored the configuration to require STARTTLS security for an SMTP connection. A MITM could perform a downgrade attack to intercept transmitted messages, or could take control of the authenticated session to execute SMTP commands chosen by the MITM. If an unprotected authentication method was configured, the MITM could obtain the authentication credentials, too. This vulnerability affects Thunderbird < 91.2.
Aliases
Aliases
CVE-2021-38502


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-38502",
    "description": "Thunderbird ignored the configuration to require STARTTLS security for an SMTP connection. A MITM could perform a downgrade attack to intercept transmitted messages, or could take control of the authenticated session to execute SMTP commands chosen by the MITM. If an unprotected authentication method was configured, the MITM could obtain the authentication credentials, too. This vulnerability affects Thunderbird \u003c 91.2.",
    "id": "GSD-2021-38502",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-38502.html",
      "https://www.debian.org/security/2022/dsa-5034",
      "https://access.redhat.com/errata/RHSA-2021:3841",
      "https://access.redhat.com/errata/RHSA-2021:3840",
      "https://access.redhat.com/errata/RHSA-2021:3839",
      "https://access.redhat.com/errata/RHSA-2021:3838",
      "https://ubuntu.com/security/CVE-2021-38502",
      "https://advisories.mageia.org/CVE-2021-38502.html",
      "https://security.archlinux.org/CVE-2021-38502",
      "https://linux.oracle.com/cve/CVE-2021-38502.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-38502"
      ],
      "details": "Thunderbird ignored the configuration to require STARTTLS security for an SMTP connection. A MITM could perform a downgrade attack to intercept transmitted messages, or could take control of the authenticated session to execute SMTP commands chosen by the MITM. If an unprotected authentication method was configured, the MITM could obtain the authentication credentials, too. This vulnerability affects Thunderbird \u003c 91.2.",
      "id": "GSD-2021-38502",
      "modified": "2023-12-13T01:23:17.336267Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@mozilla.org",
        "ID": "CVE-2021-38502",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Thunderbird",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_value": "91.2"
                        }
                      ]
                    }
                  }
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            }
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            "value": "Thunderbird ignored the configuration to require STARTTLS security for an SMTP connection. A MITM could perform a downgrade attack to intercept transmitted messages, or could take control of the authenticated session to execute SMTP commands chosen by the MITM. If an unprotected authentication method was configured, the MITM could obtain the authentication credentials, too. This vulnerability affects Thunderbird \u003c 91.2."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Downgrade attack on SMTP STARTTLS connections"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://www.mozilla.org/security/advisories/mfsa2021-47/",
            "refsource": "MISC",
            "url": "https://www.mozilla.org/security/advisories/mfsa2021-47/"
          },
          {
            "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1733366",
            "refsource": "MISC",
            "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1733366"
          },
          {
            "name": "DSA-5034",
            "refsource": "DEBIAN",
            "url": "https://www.debian.org/security/2022/dsa-5034"
          },
          {
            "name": "[debian-lts-announce] 20220104 [SECURITY] [DLA 2874-1] thunderbird security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html"
          }
        ]
      }
    },
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        "ASSIGNER": "security@mozilla.org",
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      },
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            }
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      "data_type": "CVE",
      "data_version": "4.0",
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          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
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              {
                "lang": "eng",
                "value": "Downgrade attack on SMTP STARTTLS connections"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "url": "https://www.mozilla.org/security/advisories/mfsa2021-47/"
          },
          {
            "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1733366"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "91.2",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
                "cpe_name": [],
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            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
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          "ASSIGNER": "security@mozilla.org",
          "ID": "CVE-2021-38502"
        },
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Thunderbird ignored the configuration to require STARTTLS security for an SMTP connection. A MITM could perform a downgrade attack to intercept transmitted messages, or could take control of the authenticated session to execute SMTP commands chosen by the MITM. If an unprotected authentication method was configured, the MITM could obtain the authentication credentials, too. This vulnerability affects Thunderbird \u003c 91.2."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-522"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1733366",
              "refsource": "MISC",
              "tags": [
                "Issue Tracking",
                "Permissions Required",
                "Vendor Advisory"
              ],
              "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1733366"
            },
            {
              "name": "https://www.mozilla.org/security/advisories/mfsa2021-47/",
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              "tags": [
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              ],
              "url": "https://www.mozilla.org/security/advisories/mfsa2021-47/"
            },
            {
              "name": "DSA-5034",
              "refsource": "DEBIAN",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://www.debian.org/security/2022/dsa-5034"
            },
            {
              "name": "[debian-lts-announce] 20220104 [SECURITY] [DLA 2874-1] thunderbird security update",
              "refsource": "MLIST",
              "tags": [
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                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-03-17T19:37Z",
      "publishedDate": "2021-11-03T01:15Z"
    }
  }
}


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