fkie_cve-2025-27591
Vulnerability from fkie_nvd
Published
2025-03-11 19:15
Modified
2025-07-03 14:40
Severity ?
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
{
"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"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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