Zero-day vulnerability in CrushFTP

External Control of File Name or Path
CVE-2024-4040

Vulnerability details

Advisory: SB2024042213 - Arbitrary file download in CrushFTP

Vulnerable component: CrushFTP

CVE-ID: CVE-2024-4040

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:H/RL:O/RC:C

CWE-ID: CWE-73 - External Control of File Name or Path

Description:

The vulnerability allows a remote user to delete arbitrary files.

The vulnerability exists due to application allows to access files outside of the virtual file system. A remote authenticated user can read arbitrary system files.

Note, the vulnerability is being exploited in the wild.

External links:

https://www.crushftp.com/crush11wiki/Wiki.jsp?page=Update

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.