cve-2018-18509
Vulnerability from cvelistv5
Published
2019-04-26 16:13
Modified
2024-08-05 11:08
Severity ?
Summary
A flaw during verification of certain S/MIME signatures causes emails to be shown in Thunderbird as having a valid digital signature, even if the shown message contents aren't covered by the signature. The flaw allows an attacker to reuse a valid S/MIME signature to craft an email message with arbitrary content. This vulnerability affects Thunderbird < 60.5.1.
References
security@mozilla.orghttp://lists.opensuse.org/opensuse-security-announce/2019-04/msg00043.html
security@mozilla.orghttp://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.htmlThird Party Advisory, VDB Entry
security@mozilla.orghttp://seclists.org/fulldisclosure/2019/Apr/38Mailing List, Third Party Advisory
security@mozilla.orghttp://www.openwall.com/lists/oss-security/2019/04/30/4Mailing List, Third Party Advisory
security@mozilla.orghttps://access.redhat.com/errata/RHSA-2019:1144
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1507218Issue Tracking, Permissions Required, Vendor Advisory
security@mozilla.orghttps://github.com/RUB-NDS/Johnny-You-Are-Fired
security@mozilla.orghttps://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2019-06/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00043.html
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.htmlThird Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2019/Apr/38Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2019/04/30/4Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:1144
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=1507218Issue Tracking, Permissions Required, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/RUB-NDS/Johnny-You-Are-Fired
af854a3a-2127-422b-91ae-364da2661108https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2019-06/Vendor Advisory
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T11:08:21.996Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "openSUSE-SU-2019:1162",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00043.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.mozilla.org/security/advisories/mfsa2019-06/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1507218"
          },
          {
            "name": "[oss-security] 20190430 Spoofing OpenPGP and S/MIME Signatures in Emails (multiple clients)",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2019/04/30/4"
          },
          {
            "name": "20190430 OpenPGP and S/MIME signature forgery attacks in multiple email clients",
            "tags": [
              "mailing-list",
              "x_refsource_FULLDISC",
              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2019/Apr/38"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html"
          },
          {
            "name": "RHSA-2019:1144",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:1144"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/RUB-NDS/Johnny-You-Are-Fired"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Thunderbird",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "60.5.1",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw during verification of certain S/MIME signatures causes emails to be shown in Thunderbird as having a valid digital signature, even if the shown message contents aren\u0027t covered by the signature. The flaw allows an attacker to reuse a valid S/MIME signature to craft an email message with arbitrary content. This vulnerability affects Thunderbird \u003c 60.5.1."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "S/MIME signature spoofing",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-06-03T18:06:06",
        "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
        "shortName": "mozilla"
      },
      "references": [
        {
          "name": "openSUSE-SU-2019:1162",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00043.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.mozilla.org/security/advisories/mfsa2019-06/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1507218"
        },
        {
          "name": "[oss-security] 20190430 Spoofing OpenPGP and S/MIME Signatures in Emails (multiple clients)",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2019/04/30/4"
        },
        {
          "name": "20190430 OpenPGP and S/MIME signature forgery attacks in multiple email clients",
          "tags": [
            "mailing-list",
            "x_refsource_FULLDISC"
          ],
          "url": "http://seclists.org/fulldisclosure/2019/Apr/38"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html"
        },
        {
          "name": "RHSA-2019:1144",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:1144"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/RUB-NDS/Johnny-You-Are-Fired"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@mozilla.org",
          "ID": "CVE-2018-18509",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Thunderbird",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_value": "60.5.1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Mozilla"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A flaw during verification of certain S/MIME signatures causes emails to be shown in Thunderbird as having a valid digital signature, even if the shown message contents aren\u0027t covered by the signature. The flaw allows an attacker to reuse a valid S/MIME signature to craft an email message with arbitrary content. This vulnerability affects Thunderbird \u003c 60.5.1."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "S/MIME signature spoofing"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "openSUSE-SU-2019:1162",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00043.html"
            },
            {
              "name": "https://www.mozilla.org/security/advisories/mfsa2019-06/",
              "refsource": "MISC",
              "url": "https://www.mozilla.org/security/advisories/mfsa2019-06/"
            },
            {
              "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1507218",
              "refsource": "MISC",
              "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1507218"
            },
            {
              "name": "[oss-security] 20190430 Spoofing OpenPGP and S/MIME Signatures in Emails (multiple clients)",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2019/04/30/4"
            },
            {
              "name": "20190430 OpenPGP and S/MIME signature forgery attacks in multiple email clients",
              "refsource": "FULLDISC",
              "url": "http://seclists.org/fulldisclosure/2019/Apr/38"
            },
            {
              "name": "http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html"
            },
            {
              "name": "RHSA-2019:1144",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:1144"
            },
            {
              "name": "https://github.com/RUB-NDS/Johnny-You-Are-Fired",
              "refsource": "MISC",
              "url": "https://github.com/RUB-NDS/Johnny-You-Are-Fired"
            },
            {
              "name": "https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf",
              "refsource": "MISC",
              "url": "https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
    "assignerShortName": "mozilla",
    "cveId": "CVE-2018-18509",
    "datePublished": "2019-04-26T16:13:22",
    "dateReserved": "2018-10-19T00:00:00",
    "dateUpdated": "2024-08-05T11:08:21.996Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2018-18509\",\"sourceIdentifier\":\"security@mozilla.org\",\"published\":\"2019-04-26T17:29:00.243\",\"lastModified\":\"2024-11-21T03:56:04.547\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A flaw during verification of certain S/MIME signatures causes emails to be shown in Thunderbird as having a valid digital signature, even if the shown message contents aren\u0027t covered by the signature. The flaw allows an attacker to reuse a valid S/MIME signature to craft an email message with arbitrary content. This vulnerability affects Thunderbird \u003c 60.5.1.\"},{\"lang\":\"es\",\"value\":\"Un fallo durante la comprobaci\u00f3n de ciertas firmas S/MIME produce correos electr\u00f3nicos que se mostrar\u00e1n en Thunderbird con una firma digital v\u00e1lida, incluso si el contenido del mensaje mostrado no est\u00e1 cubierto por la firma. El fallo le permite a un atacante reutilizar una firma S/MIME v\u00e1lida para poder elaborar un mensaje de correo electr\u00f3nico con contenido arbitrario. Esta vulnerabilidad afecta a Thunderbird versiones \u003c60.5.1.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"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\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\"},\"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-347\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"60.5.1\",\"matchCriteriaId\":\"0C51200B-CE35-47CB-89C2-185BC159A0B4\"}]}]}],\"references\":[{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00043.html\",\"source\":\"security@mozilla.org\"},{\"url\":\"http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html\",\"source\":\"security@mozilla.org\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://seclists.org/fulldisclosure/2019/Apr/38\",\"source\":\"security@mozilla.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2019/04/30/4\",\"source\":\"security@mozilla.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2019:1144\",\"source\":\"security@mozilla.org\"},{\"url\":\"https://bugzilla.mozilla.org/show_bug.cgi?id=1507218\",\"source\":\"security@mozilla.org\",\"tags\":[\"Issue Tracking\",\"Permissions Required\",\"Vendor Advisory\"]},{\"url\":\"https://github.com/RUB-NDS/Johnny-You-Are-Fired\",\"source\":\"security@mozilla.org\"},{\"url\":\"https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf\",\"source\":\"security@mozilla.org\"},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2019-06/\",\"source\":\"security@mozilla.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00043.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://seclists.org/fulldisclosure/2019/Apr/38\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2019/04/30/4\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2019:1144\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://bugzilla.mozilla.org/show_bug.cgi?id=1507218\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Permissions Required\",\"Vendor Advisory\"]},{\"url\":\"https://github.com/RUB-NDS/Johnny-You-Are-Fired\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2019-06/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
  }
}


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.