Description
A Cross-Site Request Forgery vulnerability exists in Filebrowser < 2.18.0 that allows attackers to create a backdoor user with admin privilege and get access to the filesystem via a malicious HTML webpage that is sent to the victim. An admin can run commands using the FileBrowser and hence it leads to RCE.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Exploit-DB 1
- FileBrowser 2.17.2 - Cross Site Request Forgery (CSRF) to Remote Code Execution (RCE) EDB-50717 · webapps · Feb 8, 2022
GitHub 2 repositories
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febinrev/CVE-2021-46398_Chamilo-LMS-RCE ★ 5 · Mar 22, 2022
Chamilo LMS v1.11.14 was discovered to contain a zero click code injection vulnerability which allows attackers to execute arbitrary code via a crafted plugin. This vulnerability is triggered through…
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LalieA/CVE-2021-46398 ★ 0 · Jan 3, 2023
A Proof of Concept for the CVE-2021-46398 flaw exploitation
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/filebrowser/filebrowser/v2 | < 2.18.0 | 2.18.0 | GHSA-72wf-hwcq-65h9 |
References
- https://github.com/filebrowser/filebrowser/commit/74b7cd8e81840537a8206317344f118093153e8d
- https://febin0x4e4a.blogspot.com/2022/01/critical-csrf-in-filebrowser.html
- https://febin0x4e4a.wordpress.com/2022/01/19/critical-csrf-in-filebrowser/
- https://systemweakness.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7
- http://packetstormsecurity.com/files/165885/FileBrowser-2.17.2-Code-Execution-Cross-Site-Request-Forgery.html
- https://febinj.medium.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7