---
cve: "CVE-2022-36029"
severity: "CRITICAL"
cvss: 9.1
epss: "0.4%"
vendor: "bigbluebutton"
kev: false
exploited: false
published: "2024-04-25 21:15:46"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-11-09T12:42:04+01:00"
---

# CVE-2022-36029

> 9.1 CRITICAL · 🧪 PoC

## Beschreibung

Greenlight is an end-user interface for BigBlueButton servers. Versions prior to 2.13.0 have an open redirect vulnerability in the Login page due to unchecked the value of the `return_to` cookie. Versions 2.13.0 contains a patch for the issue.

## CNA-Record (Kanon, cvelistV5)

- CNA: **GitHub_M**
- State: PUBLISHED
- Stand: 2024-08-29 20:11:18
- CNA-CVSS: **9.1** (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **total**

## CVSS-Vektor

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

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

## Schwachstellen-Klasse

- **CWE-601** — URL Redirection to Untrusted Site
  The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.

## Angriffsmuster (CAPEC)

- [CAPEC-178 — Cross-Site Flashing](https://capec.mitre.org/data/definitions/178.html) _(Severity: Medium)_

## Patch verfügbar (OSV)

- 3622a25e134eaea16eadc8795ebc05df9461ceeb (Commit)
- 20fe1ee71b5703fcc4ed698a959ad224fed19623 (Commit)

## Referenzen

- <https://huntr.com/bounties/ba5834bd-1f04-4936-8e93-2442d45403bahttps://>
- <https://github.com/bigbluebutton/greenlight/commit/20fe1ee71b5703fcc4ed698a959ad224fed19623>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2022-36029/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_