FKIE_CVE-2025-21611

Vulnerability from fkie_nvd - Published: 2025-01-06 16:15 - Updated: 2025-08-19 13:17
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
tgstation-server is a production scale tool for BYOND server management. Prior to 6.12.3, roles used to authorize API methods were incorrectly OR'd instead of AND'ed with the role used to determine if a user was enabled. This allows enabled users access to most, but not all, authorized actions regardless of their permissions. Notably, the WriteUsers right is unaffected so users may not use this bug to permanently elevate their account permissions. The fix is release in tgstation-server-v6.12.3.
References
security-advisories@github.comhttps://github.com/tgstation/tgstation-server/commit/e7b1189620baaf03c2d23f6e164d07c7c7d87d57Patch
security-advisories@github.comhttps://github.com/tgstation/tgstation-server/issues/2064Issue Tracking
security-advisories@github.comhttps://github.com/tgstation/tgstation-server/security/advisories/GHSA-rf5r-q276-vrc4Vendor Advisory
Impacted products
Vendor Product Version
tgstation13 tgstation-server *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:tgstation13:tgstation-server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "954F1D42-C83C-47B0-8134-0C926F1F1E29",
              "versionEndExcluding": "6.12.3",
              "versionStartIncluding": "6.11.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "tgstation-server is a production scale tool for BYOND server management. Prior to 6.12.3, roles used to authorize API methods were incorrectly OR\u0027d instead of AND\u0027ed with the role used to determine if a user was enabled. This allows enabled users access to most, but not all, authorized actions regardless of their permissions. Notably, the WriteUsers right is unaffected so users may not use this bug to permanently elevate their account permissions. The fix is release in tgstation-server-v6.12.3."
    },
    {
      "lang": "es",
      "value": "tgstation-server es una herramienta de escala de producci\u00f3n para la administraci\u00f3n de servidores BYOND. Antes de la versi\u00f3n 6.12.3, los roles utilizados para autorizar m\u00e9todos de API se combinaban incorrectamente con OR en lugar de AND con el rol utilizado para determinar si un usuario estaba habilitado. Esto permite a los usuarios habilitados acceder a la mayor\u00eda de las acciones autorizadas, pero no a todas, independientemente de sus permisos. En particular, el derecho WriteUsers no se ve afectado, por lo que los usuarios no pueden usar este error para elevar permanentemente los permisos de su cuenta. La soluci\u00f3n se publica en tgstation-server-v6.12.3."
    }
  ],
  "id": "CVE-2025-21611",
  "lastModified": "2025-08-19T13:17:13.010",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-01-06T16:15:31.413",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/tgstation/tgstation-server/commit/e7b1189620baaf03c2d23f6e164d07c7c7d87d57"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Issue Tracking"
      ],
      "url": "https://github.com/tgstation/tgstation-server/issues/2064"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/tgstation/tgstation-server/security/advisories/GHSA-rf5r-q276-vrc4"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-285"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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Sightings

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  • 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.



Detection rules are retrieved from Rulezet.