CVE-2024-31396 in A-Blog CMS
Summary
by MITRE • 05/22/2024
Code injection vulnerability exists in a-blog cms Ver.3.1.x series versions prior to Ver.3.1.12 and Ver.3.0.x series versions prior to Ver.3.0.32. If this vulnerability is exploited, a user with an administrator or higher privilege who can log in to the product may execute an arbitrary command on the server.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 05/12/2025
This code injection vulnerability in a-blog cms represents a critical security flaw that allows authenticated administrators to execute arbitrary commands on the underlying server. The vulnerability affects specific version ranges including 3.1.x series prior to 3.1.12 and 3.0.x series prior to 3.0.32, making it a significant concern for organizations relying on these outdated versions. The flaw stems from insufficient input validation and sanitization mechanisms within the application's command execution pathways, creating an avenue for privilege escalation attacks. This vulnerability directly maps to CWE-94, which describes the weakness of executing arbitrary code, and aligns with ATT&CK technique T1059.001 for command and scripting interpreter. The security implications are severe as it transforms a legitimate administrative account into a full system compromise vector, allowing attackers to perform actions such as data exfiltration, system modification, or establishing persistent access. The vulnerability's exploitation requires only an authenticated administrator account, making it particularly dangerous in environments where administrative privileges are granted to multiple users or where credential theft is possible through other attack vectors. Organizations using affected versions face substantial risk of complete system compromise and potential data breaches, as the vulnerability bypasses typical application-level security controls.
The technical implementation of this vulnerability likely involves improper handling of user-supplied input within administrative functions that process commands or configuration parameters. When administrators perform certain operations within the CMS, the application fails to properly sanitize or validate input before processing, allowing malicious payloads to be interpreted as executable commands. This type of flaw typically occurs in environments where dynamic command execution is implemented without adequate input filtering or when legacy code patterns are used that do not properly escape or validate user data. The vulnerability's impact extends beyond simple command execution as it can be leveraged to install backdoors, modify system files, access sensitive data, or even pivot to other systems within the network. Attackers can exploit this weakness to gain persistent access to the server, potentially leading to long-term unauthorized access and data theft. The attack surface is particularly concerning given that many organizations maintain administrative accounts for routine maintenance and content management, increasing the likelihood of successful exploitation.
Organizations must prioritize immediate remediation by upgrading to the patched versions 3.1.12 or 3.0.32, as these releases contain the necessary security patches to address the code injection vulnerability. The upgrade process should include thorough testing to ensure compatibility with existing configurations and content management workflows. Security teams should also implement network monitoring to detect potential exploitation attempts and conduct comprehensive vulnerability assessments to identify any systems that may have been compromised. Additional mitigations include implementing network segmentation to limit access to administrative functions, enforcing strict access controls for administrative accounts, and monitoring administrative login activities for unusual patterns. Organizations should also consider implementing web application firewalls to detect and block malicious payloads targeting this vulnerability. The incident highlights the importance of maintaining up-to-date software versions and following secure coding practices that prevent code injection vulnerabilities through proper input validation and sanitization techniques. Regular security audits and penetration testing should be conducted to identify similar weaknesses in other applications and systems within the organization's infrastructure.