CVE-2024-42905 in DCME-320
Summary
by MITRE • 08/28/2024
Beijing Digital China Cloud Technology Co., Ltd. DCME-320 v.7.4.12.60 has a command execution vulnerability, which can be exploited to obtain device administrator privileges via the getVar function in the code/function/system/tool/ping.php file.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 08/29/2024
The vulnerability identified as CVE-2024-42905 affects the DCME-320 device management system version 7.4.12.60 produced by Beijing Digital China Cloud Technology Co., Ltd. This critical command execution flaw resides within the ping.php file, specifically within the getVar function that handles system variable retrieval operations. The vulnerability represents a significant security weakness that allows unauthorized attackers to execute arbitrary commands on the affected device with administrative privileges, effectively compromising the entire system infrastructure.
The technical implementation of this vulnerability stems from insufficient input validation and sanitization within the getVar function, which processes user-supplied parameters without proper security controls. This lack of proper parameter validation creates an environment where malicious input can be directly interpreted and executed as system commands, enabling attackers to leverage the ping.php endpoint as a gateway for privilege escalation. The vulnerability aligns with CWE-78, which describes improper neutralization of special elements used in OS commands, and specifically manifests as a command injection flaw that bypasses normal security mechanisms.
The operational impact of this vulnerability is severe and far-reaching, as it provides attackers with complete administrative control over the affected DCME-320 devices. Once exploited, adversaries can execute arbitrary code, install malware, modify system configurations, and potentially establish persistent backdoors within the network infrastructure. The vulnerability affects the device management capabilities of the system, which typically handles critical network operations and device monitoring functions, making it an attractive target for both cybercriminals and nation-state actors seeking to compromise enterprise networks. The attack surface extends beyond individual device compromise to potentially enable lateral movement throughout connected network segments.
Mitigation strategies should prioritize immediate patch deployment from the vendor to address the command injection vulnerability in the getVar function of ping.php. Organizations should implement network segmentation and access controls to limit exposure of affected devices to untrusted networks. Security monitoring should focus on detecting anomalous command execution patterns and unusual network traffic originating from the affected system. Network administrators should consider implementing web application firewalls to filter potentially malicious payloads targeting the ping.php endpoint. The vulnerability demonstrates the importance of secure coding practices and input validation as outlined in the OWASP Top Ten and MITRE ATT&CK framework, specifically addressing techniques related to command injection and privilege escalation. Regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in other system components and prevent similar incidents in the future.