Horizon Alert
Summary of the vulnerability and why it matters
Certain Cleo products, including Harmony, VLTrader, and LexiCom, have a vulnerability that allows unauthenticated users to execute commands on the host system. This occurs when default settings are leveraged within the Autorun directory. The potential impact includes unauthorized command execution, leading to data compromise or system disruption.
- Vulnerable Cleo software components.
- Unauthenticated command execution flaw.
- Potential for data loss or system compromise.
Attack Path
How an attacker could exploit the issue
An unauthenticated user can gain control of a host system by exploiting a vulnerability in the Autorun directory's default settings. This allows for the import and execution of arbitrary commands. The affected products include Cleo Harmony, VLTrader, and LexiCom.
- Unauthenticated network access to the system.
- User imports malicious file.
- Arbitrary command execution occurs.
Live Threat
Current exploitation, exposure, and threat context
Exploitation of this vulnerability could allow an unauthenticated user to execute arbitrary commands on the host system. The attack leverages default settings within the Autorun directory, posing a significant risk to organizations using the affected Cleo products. Successful exploitation could lead to unauthorized access and control of the affected systems. The U.S. government has identified this vulnerability as actively exploited, indicating a high level of threat.
- Likely attacker skill level: Low
- Required access or conditions: Network access, unauthenticated
- Business risk or urgency: High, actively exploited
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
The organization's managed file transfer solutions, Cleo Harmony, VLTrader, and LexiCom, are susceptible to an unauthenticated command execution vulnerability. This issue arises from default settings allowing the import and execution of arbitrary Bash or PowerShell commands on the host system. The potential impact includes unauthorized system access and control, posing a significant business risk.
- Identify all instances of Cleo Harmony, VLTrader, and LexiCom.
- Limit network access to these systems.
- Update software and confirm the fix.
- Monitor for unusual system activity.
