fkie_cve-2025-32955
Vulnerability from fkie_nvd
Published
2025-04-21 21:15
Modified
2025-04-23 14:08
Severity ?
Summary
Harden-Runner is a CI/CD security agent that works like an EDR for GitHub Actions runners. Versions from 0.12.0 to before 2.12.0 are vulnerable to `disable-sudo` bypass. Harden-Runner includes a policy option `disable-sudo` to prevent the GitHub Actions runner user from using sudo. This is implemented by removing the runner user from the sudoers file. However, this control can be bypassed as the runner user, being part of the docker group, can interact with the Docker daemon to launch privileged containers or access the host filesystem. This allows the attacker to regain root access or restore the sudoers file, effectively bypassing the restriction. This issue has been patched in version 2.12.0.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Harden-Runner is a CI/CD security agent that works like an EDR for GitHub Actions runners. Versions from 0.12.0 to before 2.12.0 are vulnerable to `disable-sudo` bypass. Harden-Runner includes a policy option `disable-sudo` to prevent the GitHub Actions runner user from using sudo. This is implemented by removing the runner user from the sudoers file. However, this control can be bypassed as the runner user, being part of the docker group, can interact with the Docker daemon to launch privileged containers or access the host filesystem. This allows the attacker to regain root access or restore the sudoers file, effectively bypassing the restriction. This issue has been patched in version 2.12.0."
},
{
"lang": "es",
"value": "Harden-Runner es un agente de seguridad de CI/CD que funciona como un EDR para ejecutores de GitHub Actions. Las versiones desde la 0.12.0 hasta anteriores a la 2.12.0 son vulnerables a la omisi\u00f3n de `disable-sudo`. Harden-Runner incluye la opci\u00f3n de pol\u00edtica `disable-sudo` para impedir que el usuario ejecutor de GitHub Actions use sudo. Esto se implementa eliminando al usuario ejecutor del archivo `sudoers`. Sin embargo, este control puede omitirse, ya que el usuario ejecutor, al formar parte del grupo Docker, puede interactuar con el daemon de Docker para lanzar contenedores privilegiados o acceder al sistema de archivos del host. Esto permite al atacante recuperar el acceso root o restaurar el archivo `sudoers`, evadiendo as\u00ed la restricci\u00f3n. Este problema se ha corregido en la versi\u00f3n 2.12.0."
}
],
"id": "CVE-2025-32955",
"lastModified": "2025-04-23T14:08:13.383",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.0,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 0.8,
"impactScore": 5.2,
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
},
"published": "2025-04-21T21:15:20.507",
"references": [
{
"source": "security-advisories@github.com",
"url": "https://github.com/step-security/harden-runner/commit/0634a2670c59f64b4a01f0f96f84700a4088b9f0"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/step-security/harden-runner/releases/tag/v2.12.0"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/step-security/harden-runner/security/advisories/GHSA-mxr3-8whj-j74r"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-268"
},
{
"lang": "en",
"value": "CWE-269"
}
],
"source": "security-advisories@github.com",
"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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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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