CVE-2023-36462 (GCVE-0-2023-36462)

Vulnerability from cvelistv5 – Published: 2023-07-06 19:16 – Updated: 2024-10-24 14:25
VLAI
Title
Mastodon's verified profile links can be formatted in a misleading way
Summary
Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 2.6.0 and prior to versions 3.5.9, 4.0.5, and 4.1.3, an attacker can craft a verified profile link using specific formatting to conceal arbitrary parts of the link, enabling it to appear to link to a different URL altogether. The link is visually misleading, but clicking on it will reveal the actual link. This can still be used for phishing, though, similar to IDN homograph attacks. Versions 3.5.9, 4.0.5, and 4.1.3 contain a patch for this issue.
Severity
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-24 14:21 UTC
CWE
  • CWE-20 - Improper Input Validation
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7565 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
mastodon mastodon Affected: >= 2.6.0, < 3.5.9
Affected: >= 4.0.0, < 4.0.5
Affected: >= 4.1.0, < 4.1.3
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Mastodon\u0027s verified profile links can be formatted in a misleading way",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-36462.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-02T16:45:57.097Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "name": "https://github.com/mastodon/mastodon/security/advisories/GHSA-55j9-c3mp-6fcq",
                "tags": [
                  "x_refsource_CONFIRM",
                  "x_transferred"
                ],
                "url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-55j9-c3mp-6fcq"
              },
              {
                "name": "https://github.com/mastodon/mastodon/commit/610731b03dfcadd887078cb0399f4e514aa1931c",
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "https://github.com/mastodon/mastodon/commit/610731b03dfcadd887078cb0399f4e514aa1931c"
              },
              {
                "name": "https://github.com/mastodon/mastodon/releases/tag/v3.5.9",
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "https://github.com/mastodon/mastodon/releases/tag/v3.5.9"
              },
              {
                "name": "https://github.com/mastodon/mastodon/releases/tag/v4.0.5",
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "https://github.com/mastodon/mastodon/releases/tag/v4.0.5"
              },
              {
                "name": "https://github.com/mastodon/mastodon/releases/tag/v4.1.3",
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "https://github.com/mastodon/mastodon/releases/tag/v4.1.3"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2023-36462",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-10-24T14:21:58.873405Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-10-24T14:25:27.893Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "mastodon",
              "vendor": "mastodon",
              "versions": [
                {
                  "status": "affected",
                  "version": "\u003e= 2.6.0, \u003c 3.5.9"
                },
                {
                  "status": "affected",
                  "version": "\u003e= 4.0.0, \u003c 4.0.5"
                },
                {
                  "status": "affected",
                  "version": "\u003e= 4.1.0, \u003c 4.1.3"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 2.6.0 and prior to versions 3.5.9, 4.0.5, and 4.1.3, an attacker can craft a verified profile link using specific formatting to conceal arbitrary parts of the link, enabling it to appear to link to a different URL altogether. The link is visually misleading, but clicking on it will reveal the actual link. This can still be used for phishing, though, similar to IDN homograph attacks. Versions 3.5.9, 4.0.5, and 4.1.3 contain a patch for this issue."
            }
          ],
          "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"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-20",
                  "description": "CWE-20: Improper Input Validation",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2023-07-06T19:16:37.617Z",
            "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
            "shortName": "GitHub_M"
          },
          "references": [
            {
              "name": "https://github.com/mastodon/mastodon/security/advisories/GHSA-55j9-c3mp-6fcq",
              "tags": [
                "x_refsource_CONFIRM"
              ],
              "url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-55j9-c3mp-6fcq"
            },
            {
              "name": "https://github.com/mastodon/mastodon/commit/610731b03dfcadd887078cb0399f4e514aa1931c",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/mastodon/mastodon/commit/610731b03dfcadd887078cb0399f4e514aa1931c"
            },
            {
              "name": "https://github.com/mastodon/mastodon/releases/tag/v3.5.9",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/mastodon/mastodon/releases/tag/v3.5.9"
            },
            {
              "name": "https://github.com/mastodon/mastodon/releases/tag/v4.0.5",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/mastodon/mastodon/releases/tag/v4.0.5"
            },
            {
              "name": "https://github.com/mastodon/mastodon/releases/tag/v4.1.3",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/mastodon/mastodon/releases/tag/v4.1.3"
            }
          ],
          "source": {
            "advisory": "GHSA-55j9-c3mp-6fcq",
            "discovery": "UNKNOWN"
          },
          "title": "Mastodon\u0027s verified profile links can be formatted in a misleading way"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2023-36462",
        "datePublished": "2023-07-06T19:16:37.617Z",
        "dateReserved": "2023-06-21T18:50:41.699Z",
        "dateUpdated": "2024-10-24T14:25:32.031Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.