CVE-2024-55956
Cleo Multiple Products Unauthenticated File Upload Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 7 January 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
In Cleo Harmony before 5.8.0.24, VLTrader before 5.8.0.24, and LexiCom before 5.8.0.24, an unauthenticated user can import and execute arbitrary Bash or PowerShell commands on the host system by leveraging the default settings of the Autorun directory.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 94.04% probability · 100th percentile
- CISA KEV
- Listed 17 December 2024 · due 7 January 2025 · used in ransomware campaigns
- Weakness
- CWE-77
- Affected
- cleo/harmony · cleo/lexicom · cleo/vltrader
- Source
- cve@mitre.org
CISA notes
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. 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
References
- https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Advisory-CVE-PendingVendor Advisory
- https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-UpdateVendor Advisory
- https://www.huntress.com/blog/threat-advisory-oh-no-cleo-cleo-software-actively-being-exploited-in-the-wildExploit, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-55956US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.