CVE-2009-2786 in reputation
Summary
by MITRE
SQL injection vulnerability in reputation.php in the Reputation plugin 2.2.4, 2.2.3, 2.0.4, and earlier for PunBB allows remote attackers to execute arbitrary SQL commands via the poster parameter.
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Analysis
by VulDB Data Team • 12/07/2024
The vulnerability identified as CVE-2009-2786 represents a critical sql injection flaw within the reputation plugin for PunBB forums. This issue affects versions 2.2.4, 2.2.3, 2.0.4, and earlier releases, making it a widespread concern for forum administrators who have not upgraded their systems. The vulnerability specifically resides in the reputation.php file, which processes user reputation data within the PunBB platform. The flaw manifests when the poster parameter is manipulated by remote attackers, allowing them to inject malicious sql commands that can be executed on the underlying database server.
The technical nature of this vulnerability aligns with CWE-89, which categorizes sql injection as a dangerous input validation issue where untrusted data is directly incorporated into sql queries without proper sanitization or parameterization. Attackers exploiting this vulnerability can manipulate the poster parameter to inject malicious sql payloads that bypass normal authentication mechanisms and execute arbitrary commands on the database level. This type of attack can result in complete database compromise, data exfiltration, and potential system takeover. The vulnerability operates at the application layer and requires no special privileges to exploit, making it particularly dangerous for web applications that handle sensitive user data.
The operational impact of CVE-2009-2786 extends beyond simple data theft, as successful exploitation can enable attackers to modify or delete forum content, escalate privileges within the database, and potentially use the compromised system as a launch point for further attacks within the network infrastructure. The reputation plugin typically handles user ratings and feedback systems, making it a prime target for attackers seeking to manipulate forum dynamics or extract user information. This vulnerability directly maps to several ATT&CK techniques including T1071.004 for application layer protocol usage and T1046 for network service discovery, as attackers may use the compromised system to explore network resources or establish persistence.
Mitigation strategies for this vulnerability require immediate patching of affected PunBB installations to versions that address the sql injection flaw in the reputation plugin. System administrators should implement input validation measures and parameterized queries to prevent similar issues in the future. Additionally, network segmentation and database access controls can limit the potential damage from successful exploitation attempts. The vulnerability demonstrates the importance of regular security assessments and timely patch management, as the issue affects multiple versions of the plugin and represents a fundamental flaw in input handling that could be exploited by automated scanning tools. Organizations should also consider implementing web application firewalls and database activity monitoring to detect and prevent sql injection attempts.