CVE-2019-12146: ipswitch ws_ftp_server Path Traversal

Vulnerability summary

CVE-2019-12146 is a critical (CVSS 9.1) Path Traversal vulnerability in ipswitch ws_ftp_server. EPSS estimates a 3.97% chance of exploitation in the next 30 days, higher than 90.3% of scored vulnerabilities.

Timeline

1. 11-06-2019
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

A Directory Traversal issue was discovered in SSHServerAPI.dll in Progress ipswitch WS_FTP Server 2018 before 8.6.1. Attackers have the ability to abuse a flaw in the SCP listener by crafting strings using specific patterns to write files and create directories outside of their authorized directory.

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.