Vulnerabilites related to facebook - below
Vulnerability from fkie_nvd
Published
2025-03-11 19:15
Modified
2025-07-03 14:40
Severity ?
6.8 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Summary
A privilege escalation vulnerability existed in the Below service prior to v0.9.0 due to the creation of a world-writable directory at /var/log/below. This could have allowed local unprivileged users to escalate to root privileges through symlink attacks that manipulate files such as /etc/shadow.
References
cve-assign@fb.comhttps://github.com/facebookincubator/below/commit/da9382e6e3e332fd2c3195e22f34977f83f0f1f3Patch
cve-assign@fb.comhttps://www.facebook.com/security/advisories/cve-2025-27591Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2025/03/12/1Exploit, Mailing List
Impacted products
Vendor Product Version
facebook below *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:facebook:below:*:*:*:*:*:rust:*:*",
              "matchCriteriaId": "C449F323-7BC8-4478-B91A-BD2D62CF9365",
              "versionEndExcluding": "0.9.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A privilege escalation vulnerability existed in the Below service prior to v0.9.0 due to the creation of a world-writable directory at /var/log/below. This could have allowed local unprivileged users to escalate to root privileges through symlink attacks that manipulate files such as /etc/shadow."
    },
    {
      "lang": "es",
      "value": "En el servicio Below exist\u00eda una vulnerabilidad de escalada de privilegios antes de la versi\u00f3n v0.9.0 debido a la creaci\u00f3n de un directorio con permisos de escritura para todo el mundo en /var/log/below. Esto podr\u00eda haber permitido que usuarios locales sin privilegios escalaran a privilegios de superusuario mediante ataques de enlaces simb\u00f3licos que manipulan archivos como /etc/shadow."
    }
  ],
  "id": "CVE-2025-27591",
  "lastModified": "2025-07-03T14:40:01.117",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 4.2,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-03-11T19:15:43.390",
  "references": [
    {
      "source": "cve-assign@fb.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/facebookincubator/below/commit/da9382e6e3e332fd2c3195e22f34977f83f0f1f3"
    },
    {
      "source": "cve-assign@fb.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://www.facebook.com/security/advisories/cve-2025-27591"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Mailing List"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2025/03/12/1"
    }
  ],
  "sourceIdentifier": "cve-assign@fb.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-732"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2025-27591 (GCVE-0-2025-27591)
Vulnerability from cvelistv5
Published
2025-03-11 18:29
Modified
2025-03-21 20:38
Severity ?
6.8 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
CWE
  • Incorrect Permission Assignment for Critical Resource (CWE-732)
Summary
A privilege escalation vulnerability existed in the Below service prior to v0.9.0 due to the creation of a world-writable directory at /var/log/below. This could have allowed local unprivileged users to escalate to root privileges through symlink attacks that manipulate files such as /etc/shadow.
References
https://www.facebook.com/security/advisories/cve-2025-27591x_refsource_CONFIRM
https://github.com/facebookincubator/below/commit/da9382e6e3e332fd2c3195e22f34977f83f0f1f3x_refsource_MISC
Impacted products
Vendor Product Version
Meta Platforms, Inc below Version: 0.0.0   ≤
Create a notification for this product.
Show details on NVD website

To clipboard 

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        },
        "references": [
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          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "NONE",
              "baseScore": 6.8,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-27591",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-21T20:37:38.689510Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-03-21T20:38:10.292Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "below",
          "vendor": "Meta Platforms, Inc",
          "versions": [
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              "lessThan": "0.9.0",
              "status": "affected",
              "version": "0.0.0",
              "versionType": "semver"
            }
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        }
      ],
      "problemTypes": [
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      "providerMetadata": {
        "dateUpdated": "2025-03-11T18:29:21.569Z",
        "orgId": "4fc57720-52fe-4431-a0fb-3d2c8747b827",
        "shortName": "facebook"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.facebook.com/security/advisories/cve-2025-27591"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/facebookincubator/below/commit/da9382e6e3e332fd2c3195e22f34977f83f0f1f3"
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    "assignerShortName": "facebook",
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    "datePublished": "2025-03-11T18:29:21.569Z",
    "dateReserved": "2025-03-03T11:36:32.537Z",
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