Path traversal in WS_FTP - CVE-2023-42657
Published: September 29, 2023
Vulnerability identifier: #VU81276
CSH Severity: Medium
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-42657
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences. A remote user can escape the context of the WS_FTP Server file structure and perform file operations on any file on the underlying system.
Affected software
WS_FTP
How to mitigate CVE-2023-42657
Install update from vendor's website.
WS_FTP - addressed in versions 8.7.4, 8.8.2