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CVE-2001-0054 is a directory-traversal vulnerability in FTP Serv-U versions before 2.5i. The FTP server improperly handles an encoded whitespace variant of a dot-dot path component supplied to the FTP CD command. A remote attacker can use a crafted path such as a dot-dot component followed by encoded whitespace to escape the configured FTP root and access files outside the intended directory hierarchy.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A directory-traversal vulnerability in FTP Serv-U versions before 2.5i that permits remote attackers to escape the configured FTP root and read arbitrary files using a crafted CD command.
A multi-factor FTP-server vulnerability involving web-encoding path manipulation, directory traversal, and other issues.
Multi-factor FTP-server flaw involving directory traversal and web-encoding path manipulations.
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.