CVE-2025-65882
Summary
CVE-2025-65882 is a critical vulnerability affecting openmptcprouter versions up to 0.64. This flaw allows attackers to potentially write arbitrary files or execute arbitrary commands on the affected system, leading to complete system compromise.
Technical Details
The vulnerability resides in the create_xor_ipad_opad function within the sysupgrade.c file of openmptcprouter. This function is responsible for generating cryptographic keys used during the system upgrade process. A flaw in the key generation or usage allows an attacker to manipulate the upgrade process. Specifically, by crafting malicious input, an attacker can influence the data written during the upgrade, enabling them to overwrite system files with arbitrary content or inject commands that will be executed with elevated privileges. The root cause is insufficient validation of input parameters used in the create_xor_ipad_opad function, leading to a buffer overflow or similar memory corruption issue that can be leveraged for arbitrary code execution. Successful exploitation requires the attacker to have some level of access to the system, such as the ability to initiate a system upgrade or inject data into the upgrade process.
Affected Products and Versions
- openmptcprouter versions up to 0.64
Impact Assessment
Successful exploitation of CVE-2025-65882 can have severe consequences.
- Complete System Compromise: Attackers can gain full control of the affected system.
- Data Breach Risk: Sensitive data stored on the system can be accessed and exfiltrated.
- Denial of Service: The system can be rendered unusable.
- Malware Installation: Attackers can install malware, including backdoors and ransomware.
Remediation
Immediate Actions
- Upgrade to the latest version of openmptcprouter: The vulnerability has been patched in versions later than 0.64.
- Monitor System Logs: Look for suspicious activity related to the system upgrade process.
- Restrict Access: Limit access to the system upgrade functionality to authorized personnel only.
Long-term Solutions
- Implement Input Validation: Ensure all input parameters are properly validated to prevent buffer overflows and other memory corruption issues.
- Regular Security Audits: Conduct regular security audits to identify and address potential vulnerabilities.
Detection & Scanning
Detecting CVE-2025-65882 requires careful analysis of system logs and network traffic. Look for suspicious activity during the system upgrade process, such as unexpected file modifications or command executions. Vulnerability scanners can also be used to identify vulnerable versions of openmptcprouter.
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