CVE-2020-37070

CloudMe · CloudMe

A buffer overflow vulnerability in CloudMe 1.11.2 allows unauthenticated remote attackers to execute arbitrary code by sending crafted packets to port 8888.

Executive summary

CloudMe 1.11.2 contains a critical buffer overflow vulnerability that allows unauthenticated remote code execution, posing a severe risk of complete system takeover.

Vulnerability

A buffer overflow exists in the way the CloudMe service processes incoming network packets on port 8888. An unauthenticated attacker can send a specially crafted payload to overflow the buffer and gain control of the execution flow.

Business impact

The CVSS score of 9.8 highlights the extreme risk of Remote Code Execution (RCE). Successful exploitation allows an attacker to run arbitrary commands on the host system with the privileges of the CloudMe service, leading to data theft, ransomware deployment, or use of the system as a pivot point for further network attacks.

Remediation

Immediate Action: Update CloudMe to the latest version that includes the fix for this buffer overflow and close port 8888 to the public internet.

Proactive Monitoring: Monitor network traffic for unusual or oversized packets directed at port 8888 and audit system processes for unauthorized activity.

Compensating Controls: Implement an Intrusion Prevention System (IPS) to detect and block buffer overflow signatures and use host-based security tools to monitor for suspicious execution patterns.

Exploitation status

Public Exploit Available: false

Analyst recommendation

The primary remediation is to apply the vendor's security patch immediately. If an update is not possible, the CloudMe service should be disabled or strictly firewalled to prevent any untrusted network communication with the vulnerable port.