CVE-2024-25623 (GCVE-0-2024-25623)

Vulnerability from cvelistv5 – Published: 2024-02-19 15:28 – Updated: 2024-08-01 23:44
VLAI
Title
Lack of media type verification of Activity Streams objects allows impersonation of remote accounts
Summary
Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.2.7, 4.1.15, 4.0.15, and 3.5.19, when fetching remote statuses, Mastodon doesn't check that the response from the remote server has a `Content-Type` header value of the Activity Streams media type, which allows a threat actor to upload a crafted Activity Streams document to a remote server and make a Mastodon server fetch it, if the remote server accepts arbitrary user uploads. The vulnerability allows a threat actor to impersonate an account on a remote server that satisfies all of the following properties: allows the attacker to register an account; accepts arbitrary user-uploaded documents and places them on the same domain as the ActivityPub actors; and serves user-uploaded document in response to requests with an `Accept` header value of the Activity Streams media type. Versions 4.2.7, 4.1.15, 4.0.15, and 3.5.19 contain a fix for this issue.
Severity
8.5 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-20 18:34 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version CPE status
mastodon mastodon Affected: < 3.5.19
Affected: >= 4.0.0, < 4.0.15
Affected: >= 4.1.0, < 4.1.15
Affected: >= 4.2.0, < 4.2.7
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-25623",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-02-20T18:34:37.609043Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-07-05T17:21:47.723Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-01T23:44:09.828Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/mastodon/mastodon/security/advisories/GHSA-jhrq-qvrm-qr36",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-jhrq-qvrm-qr36"
          },
          {
            "name": "https://github.com/mastodon/mastodon/commit/9fee5e852669e26f970e278021302e1a203fc022",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/mastodon/mastodon/commit/9fee5e852669e26f970e278021302e1a203fc022"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "mastodon",
          "vendor": "mastodon",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.5.19"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.0.0, \u003c 4.0.15"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.1.0, \u003c 4.1.15"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.2.0, \u003c 4.2.7"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.2.7, 4.1.15, 4.0.15, and 3.5.19, when fetching remote statuses, Mastodon doesn\u0027t check that the response from the remote server has a `Content-Type` header value of the Activity Streams media type, which allows a threat actor to upload a crafted Activity Streams document to a remote server and make a Mastodon server fetch it, if the remote server accepts arbitrary user uploads. The vulnerability allows a threat actor to impersonate an account on a remote server that satisfies all of the following properties: allows the attacker to register an account; accepts arbitrary user-uploaded documents and places them on the same domain as the ActivityPub actors; and serves user-uploaded document in response to requests with an `Accept` header value of the Activity Streams media type. Versions 4.2.7, 4.1.15, 4.0.15, and 3.5.19 contain a fix for this issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-434",
              "description": "CWE-434: Unrestricted Upload of File with Dangerous Type",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-02-19T15:28:15.296Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/mastodon/mastodon/security/advisories/GHSA-jhrq-qvrm-qr36",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-jhrq-qvrm-qr36"
        },
        {
          "name": "https://github.com/mastodon/mastodon/commit/9fee5e852669e26f970e278021302e1a203fc022",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/mastodon/mastodon/commit/9fee5e852669e26f970e278021302e1a203fc022"
        }
      ],
      "source": {
        "advisory": "GHSA-jhrq-qvrm-qr36",
        "discovery": "UNKNOWN"
      },
      "title": "Lack of media type verification of Activity Streams objects allows impersonation of remote accounts"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-25623",
    "datePublished": "2024-02-19T15:28:15.296Z",
    "dateReserved": "2024-02-08T22:26:33.511Z",
    "dateUpdated": "2024-08-01T23:44:09.828Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-25623",
      "date": "2026-09-24",
      "epss": "0.00515",
      "percentile": "0.413"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "E8812D4F-2BE3-47EF-8184-1A59A8BD0345",
                  "versionEndExcluding": "3.5.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "0AEC8DE8-51AD-4C44-AF70-A2ABE8FD49AD",
                  "versionEndExcluding": "4.0.15",
                  "versionStartIncluding": "4.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "0CBB8738-9E7D-4DAE-8E6F-5D8F51363B94",
                  "versionEndExcluding": "4.1.15",
                  "versionStartIncluding": "4.1.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "00EE36CA-1391-4052-9CCB-7A087F06A51E",
                  "versionEndExcluding": "4.2.7",
                  "versionStartIncluding": "4.2.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.2.7, 4.1.15, 4.0.15, and 3.5.19, when fetching remote statuses, Mastodon doesn\u0027t check that the response from the remote server has a `Content-Type` header value of the Activity Streams media type, which allows a threat actor to upload a crafted Activity Streams document to a remote server and make a Mastodon server fetch it, if the remote server accepts arbitrary user uploads. The vulnerability allows a threat actor to impersonate an account on a remote server that satisfies all of the following properties: allows the attacker to register an account; accepts arbitrary user-uploaded documents and places them on the same domain as the ActivityPub actors; and serves user-uploaded document in response to requests with an `Accept` header value of the Activity Streams media type. Versions 4.2.7, 4.1.15, 4.0.15, and 3.5.19 contain a fix for this issue."
        },
        {
          "lang": "es",
          "value": "Mastodon es un servidor de red social gratuito y de c\u00f3digo abierto basado en ActivityPub. Antes de las versiones 4.2.7, 4.1.15, 4.0.15 y 3.5.19, al recuperar estados remotos, Mastodon no verifica que la respuesta del servidor remoto tenga un valor de encabezado \"Tipo de contenido\" de los flujos de actividad. tipo de medio, que permite a un actor de amenazas cargar un documento de Activity Streams manipulado a un servidor remoto y hacer que un servidor Mastodon lo recupere, si el servidor remoto acepta cargas arbitrarias de usuarios. La vulnerabilidad permite a un actor de amenazas hacerse pasar por una cuenta en un servidor remoto que cumple con todas las siguientes propiedades: permite al atacante registrar una cuenta; acepta documentos arbitrarios subidos por usuarios y los coloca en el mismo dominio que los actores de ActivityPub; y proporciona documentos subidos por el usuario en respuesta a solicitudes con un valor de encabezado \"Aceptar\" del tipo de medio Activity Streams. Las versiones 4.2.7, 4.1.15, 4.0.15 y 3.5.19 contienen una soluci\u00f3n para este problema."
        }
      ],
      "id": "CVE-2024-25623",
      "lastModified": "2024-12-18T22:39:17.437",
      "metrics": {
        "cvssMetricV31": [
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 8.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "LOW",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "CHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N",
              "version": "3.1"
            },
            "exploitabilityScore": 3.1,
            "impactScore": 4.7,
            "source": "security-advisories@github.com",
            "type": "Secondary"
          },
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 7.7,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "CHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N",
              "version": "3.1"
            },
            "exploitabilityScore": 3.1,
            "impactScore": 4.0,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2024-02-19T16:15:51.847",
      "references": [
        {
          "source": "security-advisories@github.com",
          "tags": [
            "Patch"
          ],
          "url": "https://github.com/mastodon/mastodon/commit/9fee5e852669e26f970e278021302e1a203fc022"
        },
        {
          "source": "security-advisories@github.com",
          "tags": [
            "Vendor Advisory"
          ],
          "url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-jhrq-qvrm-qr36"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://github.com/mastodon/mastodon/commit/9fee5e852669e26f970e278021302e1a203fc022"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Vendor Advisory"
          ],
          "url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-jhrq-qvrm-qr36"
        }
      ],
      "sourceIdentifier": "security-advisories@github.com",
      "vulnStatus": "Analyzed",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-434"
            }
          ],
          "source": "security-advisories@github.com",
          "type": "Secondary"
        },
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-434"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "mastodon",
                "vendor": "mastodon",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003c 3.5.19"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 4.0.0, \u003c 4.0.15"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 4.1.0, \u003c 4.1.15"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 4.2.0, \u003c 4.2.7"
                  }
                ]
              }
            ],
            "source": "security-advisories@github.com"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E8812D4F-2BE3-47EF-8184-1A59A8BD0345",
                    "versionEndExcluding": "3.5.19",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0AEC8DE8-51AD-4C44-AF70-A2ABE8FD49AD",
                    "versionEndExcluding": "4.0.15",
                    "versionStartIncluding": "4.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0CBB8738-9E7D-4DAE-8E6F-5D8F51363B94",
                    "versionEndExcluding": "4.1.15",
                    "versionStartIncluding": "4.1.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "00EE36CA-1391-4052-9CCB-7A087F06A51E",
                    "versionEndExcluding": "4.2.7",
                    "versionStartIncluding": "4.2.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.2.7, 4.1.15, 4.0.15, and 3.5.19, when fetching remote statuses, Mastodon doesn\u0027t check that the response from the remote server has a `Content-Type` header value of the Activity Streams media type, which allows a threat actor to upload a crafted Activity Streams document to a remote server and make a Mastodon server fetch it, if the remote server accepts arbitrary user uploads. The vulnerability allows a threat actor to impersonate an account on a remote server that satisfies all of the following properties: allows the attacker to register an account; accepts arbitrary user-uploaded documents and places them on the same domain as the ActivityPub actors; and serves user-uploaded document in response to requests with an `Accept` header value of the Activity Streams media type. Versions 4.2.7, 4.1.15, 4.0.15, and 3.5.19 contain a fix for this issue."
          },
          {
            "lang": "es",
            "value": "Mastodon es un servidor de red social gratuito y de c\u00f3digo abierto basado en ActivityPub. Antes de las versiones 4.2.7, 4.1.15, 4.0.15 y 3.5.19, al recuperar estados remotos, Mastodon no verifica que la respuesta del servidor remoto tenga un valor de encabezado \"Tipo de contenido\" de los flujos de actividad. tipo de medio, que permite a un actor de amenazas cargar un documento de Activity Streams manipulado a un servidor remoto y hacer que un servidor Mastodon lo recupere, si el servidor remoto acepta cargas arbitrarias de usuarios. La vulnerabilidad permite a un actor de amenazas hacerse pasar por una cuenta en un servidor remoto que cumple con todas las siguientes propiedades: permite al atacante registrar una cuenta; acepta documentos arbitrarios subidos por usuarios y los coloca en el mismo dominio que los actores de ActivityPub; y proporciona documentos subidos por el usuario en respuesta a solicitudes con un valor de encabezado \"Aceptar\" del tipo de medio Activity Streams. Las versiones 4.2.7, 4.1.15, 4.0.15 y 3.5.19 contienen una soluci\u00f3n para este problema."
          }
        ],
        "id": "CVE-2024-25623",
        "lastModified": "2026-06-17T07:16:18.837",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 8.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "LOW",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 3.1,
              "impactScore": 4.7,
              "source": "security-advisories@github.com",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 7.7,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 3.1,
              "impactScore": 4.0,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2024-25623",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-02-20T18:34:37.609043Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2024-02-19T16:15:51.847",
        "references": [
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Patch"
            ],
            "url": "https://github.com/mastodon/mastodon/commit/9fee5e852669e26f970e278021302e1a203fc022"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-jhrq-qvrm-qr36"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://github.com/mastodon/mastodon/commit/9fee5e852669e26f970e278021302e1a203fc022"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-jhrq-qvrm-qr36"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-434"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-434"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2025-05-28T22:18:06+00:00",
      "cve": "CVE-2024-25623",
      "id": "CVE-2024-25623",
      "initial_release_date": "2024-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Lack of media type verification of Activity Streams objects allows impersonation of remote accounts",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-25623.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-01T23:44:09.828Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "name": "https://github.com/mastodon/mastodon/security/advisories/GHSA-jhrq-qvrm-qr36",
                "tags": [
                  "x_refsource_CONFIRM",
                  "x_transferred"
                ],
                "url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-jhrq-qvrm-qr36"
              },
              {
                "name": "https://github.com/mastodon/mastodon/commit/9fee5e852669e26f970e278021302e1a203fc022",
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "https://github.com/mastodon/mastodon/commit/9fee5e852669e26f970e278021302e1a203fc022"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-25623",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-02-20T18:34:37.609043Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-07-05T15:20:39.992Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "mastodon",
              "vendor": "mastodon",
              "versions": [
                {
                  "status": "affected",
                  "version": "\u003c 3.5.19"
                },
                {
                  "status": "affected",
                  "version": "\u003e= 4.0.0, \u003c 4.0.15"
                },
                {
                  "status": "affected",
                  "version": "\u003e= 4.1.0, \u003c 4.1.15"
                },
                {
                  "status": "affected",
                  "version": "\u003e= 4.2.0, \u003c 4.2.7"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.2.7, 4.1.15, 4.0.15, and 3.5.19, when fetching remote statuses, Mastodon doesn\u0027t check that the response from the remote server has a `Content-Type` header value of the Activity Streams media type, which allows a threat actor to upload a crafted Activity Streams document to a remote server and make a Mastodon server fetch it, if the remote server accepts arbitrary user uploads. The vulnerability allows a threat actor to impersonate an account on a remote server that satisfies all of the following properties: allows the attacker to register an account; accepts arbitrary user-uploaded documents and places them on the same domain as the ActivityPub actors; and serves user-uploaded document in response to requests with an `Accept` header value of the Activity Streams media type. Versions 4.2.7, 4.1.15, 4.0.15, and 3.5.19 contain a fix for this issue."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 8.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "LOW",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N",
                "version": "3.1"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-434",
                  "description": "CWE-434: Unrestricted Upload of File with Dangerous Type",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2024-02-19T15:28:15.296Z",
            "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
            "shortName": "GitHub_M"
          },
          "references": [
            {
              "name": "https://github.com/mastodon/mastodon/security/advisories/GHSA-jhrq-qvrm-qr36",
              "tags": [
                "x_refsource_CONFIRM"
              ],
              "url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-jhrq-qvrm-qr36"
            },
            {
              "name": "https://github.com/mastodon/mastodon/commit/9fee5e852669e26f970e278021302e1a203fc022",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/mastodon/mastodon/commit/9fee5e852669e26f970e278021302e1a203fc022"
            }
          ],
          "source": {
            "advisory": "GHSA-jhrq-qvrm-qr36",
            "discovery": "UNKNOWN"
          },
          "title": "Lack of media type verification of Activity Streams objects allows impersonation of remote accounts"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2024-25623",
        "datePublished": "2024-02-19T15:28:15.296Z",
        "dateReserved": "2024-02-08T22:26:33.511Z",
        "dateUpdated": "2024-08-01T23:44:09.828Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.