CVE-2023-42657

CRITICAL EXPLOITED

WS_FTP Server < 8.7.4 - Path Traversal and Arbitrary File Operations

Title source: llm

Exploitation Summary

CVE-2023-42657 has been observed exploited in the wild (reported by VulnCheck KEV).

Description

In WS_FTP Server versions prior to 8.7.4 and 8.8.2, a directory traversal vulnerability was discovered. An attacker could leverage this vulnerability to perform file operations (delete, rename, rmdir, mkdir) on files and folders outside of their authorized WS_FTP folder path. Attackers could also escape the context of the WS_FTP Server file structure and perform the same level of operations (delete, rename, rmdir, mkdir) on file and folder locations on the underlying operating system.

References (2)

Core 2

Core References

Product product

https://www.progress.com/ws_ftp

Vendor Advisory vendor-advisory

https://community.progress.com/s/article/WS-FTP-Server-Critical-Vulnerability-September-2023

Scores

CVSS v3 9.9

EPSS 0.0060

EPSS Percentile 69.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

VulnCheck KEV 2023-10-09

CWE

CWE-22

Status published

Products (1)

progress/ws_ftp_server < 8.7.4

Published Sep 27, 2023

Tracked Since Feb 18, 2026