CVE-2024-51114 in Yunke Information Technology
Summary
by MITRE • 12/03/2024
An issue in Beijing Digital China Yunke Information Technology Co.Ltd v.7.2.6.120 allows a remote attacker to execute arbitrary code via the code/function/dpi/web_auth/customizable.php file
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Analysis
by VulDB Data Team • 12/06/2024
The vulnerability identified as CVE-2024-51114 resides within the web application framework of Beijing Digital China Yunke Information Technology Co.Ltd version 7.2.6.120, representing a critical remote code execution flaw that fundamentally compromises system integrity. This vulnerability manifests through the code/function/dpi/web_auth/customizable.php file, which serves as an entry point for unauthorized remote attackers to inject and execute malicious code on the target system. The flaw constitutes a severe security weakness that directly violates the principle of least privilege and proper input validation, allowing attackers to bypass authentication mechanisms and gain unrestricted access to the underlying system infrastructure.
The technical implementation of this vulnerability stems from inadequate sanitization of user-supplied input parameters within the customizable.php endpoint, creating a pathway for attackers to inject malicious payloads that get executed with the privileges of the web application process. This represents a classic command injection vulnerability classified under CWE-77 and potentially CWE-94, where untrusted data flows directly into system commands or code execution contexts without proper validation or encoding. The vulnerability enables attackers to execute arbitrary code remotely without requiring authentication, making it particularly dangerous for networked environments where such devices are exposed to untrusted networks. The attack surface is further expanded by the fact that the vulnerable endpoint handles authentication-related functionality, meaning that successful exploitation could lead to complete system compromise including data exfiltration, privilege escalation, and persistent backdoor installation.
The operational impact of this vulnerability extends beyond simple remote code execution to encompass complete system compromise and potential lateral movement within network environments. Attackers leveraging this vulnerability can manipulate the device's configuration, access sensitive data, modify authentication mechanisms, and establish persistent access points that could remain undetected for extended periods. This vulnerability directly maps to multiple ATT&CK techniques including T1059.001 for command and script interpreter and T1078.004 for valid accounts, as attackers can leverage the compromised system to maintain persistence and move laterally through networks. Organizations using this software are at significant risk of data breaches, service disruption, and regulatory compliance violations, particularly in environments where these devices are deployed in critical infrastructure or connected to sensitive networks. The vulnerability's remote exploitability means that attackers do not require physical access or network proximity to the affected systems, making it a particularly attractive target for automated exploitation campaigns.
Mitigation strategies should focus on immediate remediation through vendor-provided patches or updates, while implementing network segmentation to limit access to vulnerable systems. Organizations should deploy web application firewalls to monitor and filter traffic to the affected endpoint, implement strict input validation and sanitization measures, and conduct comprehensive security assessments to identify similar vulnerabilities within the application codebase. The principle of defense in depth should be applied by restricting access to the customizable.php endpoint through network access control lists and ensuring that authentication mechanisms are properly hardened. Additionally, continuous monitoring and incident response procedures should be established to detect and respond to exploitation attempts, while regular security audits should be conducted to identify and remediate similar vulnerabilities in other software components. The vulnerability highlights the importance of secure coding practices and proper input validation in preventing remote code execution attacks that can lead to complete system compromise.