CVE-2021-46398

EPSS 6.7%

Vexday Risk Score

23Low

SSVC decision (CISA)

Attend

PoC available → attend closely

Exploit maturity

Proof of concept

Public proof of concept exists, but not yet automated.

CVSS —EPSS 6.7%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

04 Feb 2022Published on NVD

08 Feb 2022Public PoC

Weaponization speed

3 daysto first PoC

Weaponized quickly — attackers prioritized this vulnerability. Patch urgently.

Recommendation: Plan a near-term fix — a public PoC already exists.

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.

Affected products

n/a · n/a

public PoCs found — 3

githubgithub.com/LalieA/CVE-2021-46398★ 0 cve_referencepacketstormsecurity.com/files/165885/FileBrowser-2.17.2-Code-Execution-Cross-Site-Request-Forgery.htmlunverified exploitdbwww.exploit-db.com/exploits/50717unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

http://packetstormsecurity.com/files/165885/FileBrowser-2.17.2-Code-Execution-Cross-Site-Request-Forgery.html https://febin0x4e4a.blogspot.com/2022/01/critical-csrf-in-filebrowser.html https://febin0x4e4a.wordpress.com/2022/01/19/critical-csrf-in-filebrowser/https://febinj.medium.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7 https://github.com/filebrowser/filebrowser/commit/74b7cd8e81840537a8206317344f118093153e8d https://systemweakness.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7