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CVE-2023-42657 is a critical directory traversal vulnerability in Progress WS_FTP Server affecting versions prior to 8.7.4 and 8.8.2. The flaw allows an attacker to escape the authorized WS_FTP folder path and perform file-system operations outside the intended server-managed file structure. Reported operations include deleting, renaming, removing directories, and creating directories on files and folders beyond the user’s permitted scope, including locations on the underlying operating system. The vulnerability represents a failure to properly restrict path traversal and enforce filesystem boundaries for file-management actions exposed by the product.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A directory traversal vulnerability in Progress Software's WS_FTP Server, enabling attackers to perform unauthorized file operations on the underlying operating system.
A critical directory traversal vulnerability in Progress WS_FTP Server that allows unauthorized file operations outside the authorized WS_FTP folder and potentially access to the underlying operating system.
A critical directory traversal vulnerability in Progress WS_FTP Server that allows file operations outside the authorized WS_FTP folder path, potentially impacting underlying OS file/folder locations.
A critical directory traversal vulnerability in WS_FTP Server that allows unauthorized file and folder operations outside the intended WS_FTP path, including on the underlying operating system.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.