CVE-2022-45709 in M50
Summary
by MITRE • 12/23/2022
IP-COM M50 V15.11.0.33(10768) was discovered to contain multiple command injection vulnerabilities via the pEnable, pLevel, and pModule parameters in the formSetDebugCfg function.
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Analysis
by VulDB Data Team • 01/23/2023
The IP-COM M50 V15.11.0.33(10768) device presents a critical command injection vulnerability through its formSetDebugCfg function that accepts unvalidated input parameters. This vulnerability specifically affects the pEnable, pLevel, and pModule parameters, which are processed without adequate sanitization or validation mechanisms. The flaw resides in the device's web interface configuration handling where user-supplied data directly influences system command execution paths, creating an avenue for malicious actors to inject arbitrary commands into the underlying operating system.
This vulnerability falls under CWE-77 which describes improper neutralization of special elements used in commands, and aligns with ATT&CK technique T1059.001 for command and script injection. The affected device operates on a Linux-based embedded system where the web server processes HTTP requests containing these debug configuration parameters. When an attacker submits malicious input through these parameters, the system fails to properly escape or validate the data before passing it to system execution functions, allowing for arbitrary code execution with the privileges of the web server process.
The operational impact of this vulnerability is significant as it provides attackers with potential remote code execution capabilities on the affected device. An attacker could leverage this vulnerability to execute arbitrary commands, potentially gaining full control over the device's operations, accessing sensitive data, modifying system configurations, or establishing persistent access points. The vulnerability is particularly concerning because it affects the debug configuration functionality, which may be accessible to authenticated users or potentially even unauthenticated attackers depending on the device's configuration.
Mitigation strategies should include immediate firmware updates from IP-COM addressing the command injection flaw, network segmentation to limit access to the device, and implementing input validation measures at the application level. Additionally, administrators should disable unnecessary debug features when not actively needed, implement web application firewalls to detect and block malicious payloads, and conduct regular security assessments to identify similar vulnerabilities in the device's interface. The vulnerability demonstrates the importance of proper input sanitization and the principle of least privilege in embedded device security, as the debug functionality should not provide unrestricted command execution capabilities to unauthorized users.