CVE-2008-5806 in PHP Classifieds
Summary
by MITRE
SQL injection vulnerability in login.php in DeltaScripts PHP Classifieds 7.5 and earlier allows remote attackers to execute arbitrary SQL commands via the admin_username parameter (aka admin field). NOTE: some of these details are obtained from third party information.
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Analysis
by VulDB Data Team • 11/10/2024
This vulnerability represents a critical sql injection flaw in the DeltaScripts PHP Classifieds version 7.5 and earlier, specifically targeting the login.php script. The vulnerability manifests through the admin_username parameter, which serves as an administrative field for user authentication. The flaw allows remote attackers to manipulate the database query structure by injecting malicious sql commands through this parameter, bypassing normal authentication mechanisms and potentially gaining unauthorized administrative access to the classifieds system.
The technical exploitation of this vulnerability occurs when the application fails to properly sanitize or validate user input passed through the admin_username parameter. This parameter is directly incorporated into sql queries without adequate input filtering or parameterization, creating an environment where attackers can inject malicious sql payloads. The vulnerability follows the common sql injection attack pattern where crafted input alters the intended query execution flow, enabling attackers to extract, modify, or delete database contents. This type of vulnerability is classified under cwe-89 sql injection according to the common weakness enumeration catalog.
The operational impact of this vulnerability extends beyond simple data theft or manipulation. Successful exploitation could result in complete system compromise, allowing attackers to escalate privileges to administrative levels, access sensitive user data, modify classified listings, or even install backdoors for persistent access. The remote nature of the attack means that adversaries do not require physical access to the system, making this vulnerability particularly dangerous for web applications. The vulnerability affects the authentication mechanism itself, potentially undermining the entire security posture of the classifieds platform.
Organizations affected by this vulnerability should immediately implement comprehensive mitigations including input validation, parameterized queries, and proper output encoding. The recommended approach involves implementing proper input sanitization techniques that reject or escape special sql characters, using prepared statements with parameterized queries to prevent sql injection, and implementing proper access controls. Additionally, network segmentation and intrusion detection systems should be deployed to monitor for suspicious authentication attempts. This vulnerability aligns with attack techniques described in the attack pattern taxonomy under initial access and privilege escalation categories, emphasizing the need for robust input validation controls at all application entry points.