CVE-2008-2886 in Jamroom
Summary
by MITRE
PHP remote file inclusion vulnerability in include/plugins/jrBrowser/purchase.php in Jamroom 3.3.0 through 3.3.5, when register_globals is enabled, allows remote attackers to execute arbitrary PHP code via a URL in the jamroom[jm_dir] parameter.
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Analysis
by VulDB Data Team • 10/29/2024
The vulnerability identified as CVE-2008-2886 represents a critical remote file inclusion flaw within the Jamroom content management system version 3.3.0 through 3.3.5. This vulnerability specifically affects installations where the PHP configuration parameter register_globals is enabled, creating a dangerous condition that allows remote attackers to inject and execute arbitrary PHP code on the target server. The flaw resides in the purchase.php file located within the jrBrowser plugin directory, making it a targeted attack vector for malicious actors seeking to compromise systems running vulnerable versions of Jamroom.
The technical mechanism behind this vulnerability stems from improper input validation and sanitization within the jamroom[jm_dir] parameter handling. When register_globals is enabled, PHP automatically creates global variables from GET, POST, and cookie data, which eliminates the need for explicit variable declaration. This configuration creates a dangerous environment where attacker-controlled input can directly influence the execution flow of the application. The vulnerability manifests when an attacker supplies a malicious URL through the jamroom[jm_dir] parameter, which gets processed without adequate validation, allowing the inclusion of remote files that contain malicious code. This flaw directly maps to CWE-88, which describes improper neutralization of special elements used in an expression, and CWE-94, which covers execution of arbitrary code.
The operational impact of this vulnerability is severe and far-reaching for affected organizations. Remote code execution capabilities enable attackers to gain complete control over compromised systems, potentially leading to data breaches, system compromise, and unauthorized access to sensitive information. Attackers can leverage this vulnerability to establish persistent backdoors, install malware, steal database credentials, and perform further reconnaissance within the network. The vulnerability affects not just individual websites but entire server infrastructures, as compromised systems can serve as launching points for broader attacks. According to ATT&CK framework category T1059, this vulnerability enables adversaries to execute code through various means including web shell deployment and command injection techniques.
Mitigation strategies for CVE-2008-2886 require immediate action from system administrators and security teams. The primary recommendation involves upgrading to Jamroom versions that have addressed this vulnerability, as newer releases contain proper input validation and sanitization mechanisms. Organizations should disable register_globals in their PHP configuration files, which eliminates one of the key prerequisites for exploitation. Additionally, implementing proper input validation and sanitization measures within the application code can prevent malicious input from being processed. Network-level defenses such as web application firewalls and intrusion detection systems can provide additional layers of protection by monitoring for suspicious patterns in traffic. Security teams should also conduct comprehensive vulnerability assessments to identify and remediate similar issues across their entire software portfolio, as this vulnerability type remains relevant in modern attack landscapes where legacy systems continue to pose risks.