CVE-2022-45706 in M50
Summary
by MITRE • 12/23/2022
IP-COM M50 V15.11.0.33(10768) was discovered to contain a buffer overflow via the hostname parameter in the formSetNetCheckTools function.
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Analysis
by VulDB Data Team • 01/23/2023
The vulnerability identified as CVE-2022-45706 represents a critical buffer overflow flaw within IP-COM M50 firmware version V15.11.0.33(10768). This issue manifests through the hostname parameter within the formSetNetCheckTools function, creating a potential pathway for remote code execution and system compromise. The affected device operates within the network infrastructure domain, specifically targeting IP-COM M50 models that utilize this particular firmware revision. The buffer overflow vulnerability arises from insufficient input validation and boundary checking mechanisms within the network configuration handling routines, particularly when processing hostname values submitted through web forms.
The technical implementation of this vulnerability stems from improper memory management practices where the hostname parameter lacks adequate bounds checking before being copied into a fixed-size buffer. This flaw falls under CWE-121, which categorizes buffer overflow conditions that occur when insufficient space is allocated for data, allowing attackers to overwrite adjacent memory locations. The vulnerability exists in the web interface component of the device, specifically in the network tools configuration section where administrators can set hostname parameters for network monitoring functions. Attackers can exploit this by crafting malicious hostname inputs that exceed the allocated buffer size, potentially leading to stack corruption and arbitrary code execution with the privileges of the web server process.
The operational impact of this vulnerability extends beyond simple denial of service scenarios, as it provides attackers with potential access to critical network infrastructure components. An attacker who successfully exploits this buffer overflow could gain unauthorized access to the device's administrative interface, potentially leading to complete system compromise, data exfiltration, or use of the device as a pivot point for further network attacks. The vulnerability affects organizations that deploy IP-COM M50 devices in their network infrastructure, particularly those relying on these devices for network monitoring and management functions. This flaw aligns with ATT&CK technique T1210, which involves exploitation of remote services through buffer overflow vulnerabilities, and T1071.004, which covers application layer protocol usage for command and control communications.
Mitigation strategies for this vulnerability should prioritize immediate firmware updates from IP-COM, as the vendor would have likely released patches addressing the buffer overflow conditions in the formSetNetCheckTools function. Network administrators should implement network segmentation to limit access to affected devices and employ intrusion detection systems to monitor for suspicious hostname parameter submissions. Additionally, implementing input validation measures at the network level and disabling unnecessary web management interfaces can reduce the attack surface. Organizations should also conduct thorough vulnerability assessments of their network infrastructure to identify other potentially affected IP-COM devices or similar models that may contain analogous buffer overflow vulnerabilities. The remediation process should include comprehensive testing of updated firmware to ensure that the patch does not introduce compatibility issues with existing network configurations while maintaining the device's operational integrity.