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CVE-2021-25630

Estado: ModificadaAlta (7.8)—

"loolforkit" is a privileged program that is supposed to be run by a special, non-privileged "lool" user. Before doing anything else "loolforkit" checks, if it was invoked by the "lool" user, and refuses to run with privileges, if it's not the case. In the vulnerable version of "loolforkit" this check was wrong, so a normal user could start "loolforkit" and eventually get local root privileges.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Collaboraoffice — Online

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-25630",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@documentfoundation.org",
      "affectedData": [
        {
          "vendor": "Collabora Productivity",
          "product": "Collabora Online",
          "versions": [
            {
              "status": "affected",
              "version": "Collabora Online 4.2",
              "lessThan": "4.2.13",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "Collabora Online 6.4",
              "lessThan": "6.4.3",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "The Document Foundation",
          "product": "LibreOffice Online",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom",
              "lessThanOrEqual": "7.0.1.1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-02-23T16:15:13.253",
  "references": [
    {
      "url": "https://github.com/CollaboraOnline/online/security/advisories/GHSA-49w3-gr3w-m68v",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security@documentfoundation.org"
    },
    {
      "url": "https://www.openwall.com/lists/oss-security/2021/01/18/3",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "security@documentfoundation.org"
    },
    {
      "url": "https://github.com/CollaboraOnline/online/security/advisories/GHSA-49w3-gr3w-m68v",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.openwall.com/lists/oss-security/2021/01/18/3",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "\"loolforkit\" is a privileged program that is supposed to be run by a special, non-privileged \"lool\" user. Before doing anything else \"loolforkit\" checks, if it was invoked by the \"lool\" user, and refuses to run with privileges, if it's not the case. In the vulnerable version of \"loolforkit\" this check was wrong, so a normal user could start \"loolforkit\" and eventually get local root privileges."
    },
    {
      "lang": "es",
      "value": "\"loolforkit\" es un programa privilegiado que se supone debe ser ejecutado por un usuario \"lool\" especial, sin privilegios. Antes de hacer cualquier otra cosa, \"loolforkit\" comprueba si fue invocado por el usuario \"lool\" y se niega a ejecutar con privilegios, si no es el caso. En la versión vulnerable de \"loolforkit\", esta comprobación era equivocada, por lo que un usuario normal podría iniciar \"loolforkit\" y eventualmente alcanzar privilegios de root local"
    }
  ],
  "lastModified": "2026-06-17T03:42:14.987",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:collaboraoffice:online:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D3C184D8-37CC-4935-A1A1-A63CE7AEE5E6",
              "versionEndExcluding": "4.2.13",
              "versionStartIncluding": "4.2.0"
            },
            {
              "criteria": "cpe:2.3:a:collaboraoffice:online:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "42BD9B21-ACCF-4E83-8526-1A481CA6ED53",
              "versionEndExcluding": "6.4.3",
              "versionStartIncluding": "6.4.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@documentfoundation.org"
}