CVE-2021-46398
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.66%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 6.66% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-352
- Affected
- filebrowser/filebrowser
- Source
- cve@mitre.org
References
- http://packetstormsecurity.com/files/165885/FileBrowser-2.17.2-Code-Execution-Cross-Site-Request-Forgery.htmlExploit, Third Party Advisory, VDB Entry
- https://febin0x4e4a.blogspot.com/2022/01/critical-csrf-in-filebrowser.htmlExploit, Third Party Advisory
- https://febin0x4e4a.wordpress.com/2022/01/19/critical-csrf-in-filebrowser/Exploit, Third Party Advisory
- https://febinj.medium.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7Exploit, Third Party Advisory
- https://github.com/filebrowser/filebrowser/commit/74b7cd8e81840537a8206317344f118093153e8dPatch, Third Party Advisory
- https://systemweakness.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7Exploit, Third Party Advisory
- http://packetstormsecurity.com/files/165885/FileBrowser-2.17.2-Code-Execution-Cross-Site-Request-Forgery.htmlExploit, Third Party Advisory, VDB Entry
- https://febin0x4e4a.blogspot.com/2022/01/critical-csrf-in-filebrowser.htmlExploit, Third Party Advisory
- https://febin0x4e4a.wordpress.com/2022/01/19/critical-csrf-in-filebrowser/Exploit, Third Party Advisory
- https://febinj.medium.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7Exploit, Third Party Advisory
- https://github.com/filebrowser/filebrowser/commit/74b7cd8e81840537a8206317344f118093153e8dPatch, Third Party Advisory
- https://systemweakness.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.