CVE-2024-55956 Ransomware

CISA description

Cleo Harmony, VLTrader, and LexiCom, which are managed file transfer products, contain an unrestricted file upload vulnerability that could allow an unauthenticated user to import and execute arbitrary bash or PowerShell commands on the host system by leveraging the default settings of the Autorun directory.

Required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Notes & references

• https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Update-CVE-2024-55956
• https://nvd.nist.gov/vuln/detail/CVE-2024-55956

Where this lands in 800-53

Vulnerability data triggers these controls during assessment and continuous monitoring.

• RA-5 · Vulnerability Monitoring and Scanning
• SI-2 · Flaw Remediation
• CM-6 · Configuration Settings
• SI-7 · Software, Firmware, and Information Integrity
• CM-8 · System Component Inventory

External lookups

• NVD · CVE-2024-55956
• CVE.org · CVE-2024-55956
• CISA KEV catalog (canonical)