---
cve: "CVE-2020-36771"
severity: "HIGH"
cvss: 7.8
epss: "0.5%"
vendor: "Cloudlinux OS"
kev: false
exploited: false
published: "2024-01-22 14:15:07"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-10-30T18:27:41+01:00"
---

# CVE-2020-36771

> 7.8 HIGH · 🧪 PoC

## Beschreibung

CloudLinux CageFS 7.1.1-1 or below passes the authentication token as a command line argument. In some configurations this allows local users to view the authentication token via the process list and gain code execution as another user.

## CNA-Record (Kanon, cvelistV5)

- CNA: **redhat**
- State: PUBLISHED
- Stand: 2025-06-20 18:33:37

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **no**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Schwachstellen-Klasse

- **CWE-200** — Exposure of Sensitive Information to an Unauthorized Actor
  The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
- **CWE-214** — Invocation of Process Using Visible Sensitive Information
  A process is invoked with sensitive command-line arguments, environment variables, or other elements that can be seen by other processes on the operating system.

## Angriffsmuster (CAPEC)

- [CAPEC-13 — Subverting Environment Variable Values](https://capec.mitre.org/data/definitions/13.html) _(Severity: Very High)_
- [CAPEC-22 — Exploiting Trust in Client](https://capec.mitre.org/data/definitions/22.html) _(Severity: High)_
- [CAPEC-116 — Excavation](https://capec.mitre.org/data/definitions/116.html) _(Severity: Medium)_
- [CAPEC-169 — Footprinting](https://capec.mitre.org/data/definitions/169.html) _(Severity: Very Low)_
- [CAPEC-224 — Fingerprinting](https://capec.mitre.org/data/definitions/224.html) _(Severity: Very Low)_
- [CAPEC-285 — ICMP Echo Request Ping](https://capec.mitre.org/data/definitions/285.html) _(Severity: Low)_
- [CAPEC-287 — TCP SYN Scan](https://capec.mitre.org/data/definitions/287.html) _(Severity: Low)_
- [CAPEC-290 — Enumerate Mail Exchange (MX) Records](https://capec.mitre.org/data/definitions/290.html) _(Severity: Low)_

## ATT&CK-Techniken

- [T1562.003 — Impair Defenses:Impair Command History Logging](https://attack.mitre.org/techniques/T1562/003/)
- [T1574.006 — Hijack Execution Flow:Dynamic Linker Hijacking](https://attack.mitre.org/techniques/T1574/006/)
- [T1574.007 — Hijack Execution Flow:Path Interception by PATH Environment ](https://attack.mitre.org/techniques/T1574/007/)
- [T1217 — Browser Bookmark Discovery](https://attack.mitre.org/techniques/T1217/)
- [T1592 — Gather Victim Host Information](https://attack.mitre.org/techniques/T1592/)
- [T1595 — Active Scanning](https://attack.mitre.org/techniques/T1595/)

## Referenzen

- <https://blog.cloudlinux.com/cagefs-lve-wrappers-and-bsock-have-been-rolled-out-to-100>
- <http://seclists.org/fulldisclosure/2024/Jan/24>
- <http://packetstormsecurity.com/files/176790/CloudLinux-CageFS-7.1.1-1-Token-Disclosure.html>
- <https://github.com/sbaresearch/advisories/tree/public/2020/SBA-ADV-20200707-01_CloudLinux_CageFS_Token_Disclosure>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2020-36771/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_