High severity · published Feb 4, 2022
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…
8.8
CVSS
6.7%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)6.7% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Filebrowser · Filebrowser
before 2.18.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-46398
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-46398
Exploit
http://packetstormsecurity.com/files/165885/FileBrowser-2.17.2-Code-Execution-Cross-Site-Request-Forgery.html
Exploit
https://febin0x4e4a.blogspot.com/2022/01/critical-csrf-in-filebrowser.html
Exploit
https://febin0x4e4a.wordpress.com/2022/01/19/critical-csrf-in-filebrowser/
Exploit
https://febinj.medium.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7
Patch
https://github.com/filebrowser/filebrowser/commit/74b7cd8e81840537a8206317344f118093153e8d
Exploit
https://systemweakness.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7
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