CVE-2006-3750 in Hashcash
Summary
by MITRE
PHP remote file inclusion vulnerability in server.php in the Hashcash Component (com_hashcash) 1.2.1 for Joomla! allows remote attackers to execute arbitrary PHP code via a URL in the mosConfig_absolute_path parameter.
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Analysis
by VulDB Data Team • 07/07/2024
The vulnerability identified as CVE-2006-3750 represents a critical remote file inclusion flaw within the Hashcash Component version 1.2.1 for Joomla websites, but the implementation contains a dangerous input validation oversight that directly compromises system integrity.
This vulnerability directly maps to CWE-88, which describes improper neutralization of special elements used in an OS command, and more specifically to CWE-94, which addresses the execution of arbitrary code or commands. The flaw operates under the principle of insecure direct object reference where user-supplied input is directly used to construct file paths without proper sanitization or validation. Attackers can exploit this by crafting malicious URLs that point to remote servers hosting malicious PHP payloads, which then get included and executed by the vulnerable Joomla! component. The vulnerability falls under the ATT&CK technique T1190 - Exploit Public-Facing Application, specifically targeting web application vulnerabilities that allow remote code execution through file inclusion mechanisms.
The operational impact of this vulnerability is severe and far-reaching for affected Joomla installations running version 1.2.1 of the Hashcash Component, making it particularly dangerous as it could be exploited across numerous websites simultaneously. The remote nature of the attack means that exploitation does not require local system access or credentials, making it especially attractive to automated attack tools and opportunistic threat actors.
Mitigation strategies for CVE-2006-3750 must address both immediate remediation and long-term security hardening measures. The primary solution involves upgrading to a patched version of the Hashcash Component or completely removing the vulnerable component from affected Joomla! installations. System administrators should also implement proper input validation and sanitization for all user-supplied parameters, particularly those used in file path constructions. Additional protective measures include disabling remote file inclusion features in PHP configurations, implementing web application firewalls with content filtering capabilities, and conducting regular security audits of installed components. The vulnerability highlights the importance of keeping all web application components updated and following secure coding practices that prevent direct object reference vulnerabilities through proper parameter validation and sanitization techniques.