Unauthenticated Command Injection in Cleo Harmony, VLTrader, and LexiCom Autorun Directory
CVE-2024-55956 affects Cleo Harmony, VLTrader, and LexiCom before version 5.8.0.24. According to the provided content, an unauthenticated attacker can import and execute arbitrary Bash or PowerShell commands on the underlying host by leveraging the default settings of the Autorun directory. Supporting reporting also characterizes the issue as an unauthenticated arbitrary file-write condition associated with the /Synchronization endpoint, which can be used to place attacker-controlled content into locations that are subsequently executed via Autorun behavior. The vulnerability was observed in the wild in late 2024 and used in compromises of Cleo managed file transfer deployments, including deployment of the Java backdoor 'Malichus.'
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Exploits
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No public exploit code observed for this vulnerability.
Affected products & vendors
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
17 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability in Cleo Harmony, VLTrader, and LexiCom file transfer products exploited for mass data exfiltration by ransomware groups.
A zero-day vulnerability in Cleo file transfer software exploited by Clop in 2024 for data theft and extortion.
Command injection vulnerability affecting CLEO MFT platforms, cited as being mass-exploited to drive a surge in Cl0p ransomware victimization.
A Cleo Managed File Transfer (MFT) vulnerability cited as a driver of CL0P ransomware activity impacting manufacturing and supply chains.
The version that knows your environment.
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.