CVE-2024-39929 (GCVE-0-2024-39929)

Vulnerability from cvelistv5 – Published: 2024-07-04 00:00 – Updated: 2025-03-18 15:37
VLAI?
Summary
Exim through 4.97.1 misparses a multiline RFC 2231 header filename, and thus remote attackers can bypass a $mime_filename extension-blocking protection mechanism, and potentially deliver executable attachments to the mailboxes of end users.
CWE
  • n/a
Assigner
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "exim",
            "vendor": "exim",
            "versions": [
              {
                "lessThanOrEqual": "4.97.1",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.4,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-39929",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-07-08T16:09:08.280186Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-116",
                "description": "CWE-116 Improper Encoding or Escaping of Output",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-03-18T15:37:58.804Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T04:33:11.626Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.rfc-editor.org/rfc/rfc2231.txt"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugs.exim.org/show_bug.cgi?id=3099#c4"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Exim through 4.97.1 misparses a multiline RFC 2231 header filename, and thus remote attackers can bypass a $mime_filename extension-blocking protection mechanism, and potentially deliver executable attachments to the mailboxes of end users."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-07-04T14:47:11.317Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357"
        },
        {
          "url": "https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b"
        },
        {
          "url": "https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3"
        },
        {
          "url": "https://www.rfc-editor.org/rfc/rfc2231.txt"
        },
        {
          "url": "https://bugs.exim.org/show_bug.cgi?id=3099#c4"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2024-39929",
    "datePublished": "2024-07-04T00:00:00.000Z",
    "dateReserved": "2024-07-04T00:00:00.000Z",
    "dateUpdated": "2025-03-18T15:37:58.804Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "descriptions": "[{\"lang\": \"en\", \"value\": \"Exim through 4.97.1 misparses a multiline RFC 2231 header filename, and thus remote attackers can bypass a $mime_filename extension-blocking protection mechanism, and potentially deliver executable attachments to the mailboxes of end users.\"}, {\"lang\": \"es\", \"value\": \"Exim hasta la versi\\u00f3n 4.97.1 analiza err\\u00f3neamente un nombre de archivo de encabezado RFC 2231 multil\\u00ednea y, por lo tanto, atacantes remotos pueden eludir un mecanismo de protecci\\u00f3n de bloqueo de extensi\\u00f3n $mime_filename y potencialmente entregar archivos adjuntos ejecutables a los buzones de correo de los usuarios finales.\"}]",
      "id": "CVE-2024-39929",
      "lastModified": "2024-11-21T09:28:35.660",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N\", \"baseScore\": 5.4, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"REQUIRED\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"LOW\", \"integrityImpact\": \"LOW\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 2.5}]}",
      "published": "2024-07-04T15:15:10.323",
      "references": "[{\"url\": \"https://bugs.exim.org/show_bug.cgi?id=3099#c4\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://www.rfc-editor.org/rfc/rfc2231.txt\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://bugs.exim.org/show_bug.cgi?id=3099#c4\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://www.rfc-editor.org/rfc/rfc2231.txt\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Awaiting Analysis"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-39929\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2024-07-04T15:15:10.323\",\"lastModified\":\"2025-07-10T22:15:25.230\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Exim through 4.97.1 misparses a multiline RFC 2231 header filename, and thus remote attackers can bypass a $mime_filename extension-blocking protection mechanism, and potentially deliver executable attachments to the mailboxes of end users.\"},{\"lang\":\"es\",\"value\":\"Exim hasta la versi\u00f3n 4.97.1 analiza err\u00f3neamente un nombre de archivo de encabezado RFC 2231 multil\u00ednea y, por lo tanto, atacantes remotos pueden eludir un mecanismo de protecci\u00f3n de bloqueo de extensi\u00f3n $mime_filename y potencialmente entregar archivos adjuntos ejecutables a los buzones de correo de los usuarios finales.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N\",\"baseScore\":5.4,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":2.5}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-116\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"4.97.1\",\"matchCriteriaId\":\"067D683A-5A3E-4B3D-86A4-4BB405D84A7D\"}]}]}],\"references\":[{\"url\":\"https://bugs.exim.org/show_bug.cgi?id=3099#c4\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\",\"Vendor Advisory\"]},{\"url\":\"https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b\",\"source\":\"cve@mitre.org\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357\",\"source\":\"cve@mitre.org\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3\",\"source\":\"cve@mitre.org\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://www.rfc-editor.org/rfc/rfc2231.txt\",\"source\":\"cve@mitre.org\",\"tags\":[\"Not Applicable\"]},{\"url\":\"https://bugs.exim.org/show_bug.cgi?id=3099#c4\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Vendor Advisory\"]},{\"url\":\"https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://www.rfc-editor.org/rfc/rfc2231.txt\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Not Applicable\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://www.rfc-editor.org/rfc/rfc2231.txt\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://bugs.exim.org/show_bug.cgi?id=3099#c4\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T04:33:11.626Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.4, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"LOW\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-39929\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-07-08T16:09:08.280186Z\"}}}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*\"], \"vendor\": \"exim\", \"product\": \"exim\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"4.97.1\"}], \"defaultStatus\": \"unknown\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-116\", \"description\": \"CWE-116 Improper Encoding or Escaping of Output\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-07-08T16:10:49.707Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"n/a\", \"product\": \"n/a\", \"versions\": [{\"status\": \"affected\", \"version\": \"n/a\"}]}], \"references\": [{\"url\": \"https://git.exim.org/exim.git/commit/6ce5c70cff8989418e05d01fd2a57703007a6357\"}, {\"url\": \"https://git.exim.org/exim.git/commit/1b3209b0577a9327ebb076f3b32b8a159c253f7b\"}, {\"url\": \"https://github.com/Exim/exim/compare/exim-4.98-RC2...exim-4.98-RC3\"}, {\"url\": \"https://www.rfc-editor.org/rfc/rfc2231.txt\"}, {\"url\": \"https://bugs.exim.org/show_bug.cgi?id=3099#c4\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Exim through 4.97.1 misparses a multiline RFC 2231 header filename, and thus remote attackers can bypass a $mime_filename extension-blocking protection mechanism, and potentially deliver executable attachments to the mailboxes of end users.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"text\", \"description\": \"n/a\"}]}], \"providerMetadata\": {\"orgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"shortName\": \"mitre\", \"dateUpdated\": \"2024-07-04T14:47:11.317Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-39929\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-03-18T15:37:58.804Z\", \"dateReserved\": \"2024-07-04T00:00:00.000Z\", \"assignerOrgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"datePublished\": \"2024-07-04T00:00:00.000Z\", \"assignerShortName\": \"mitre\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…