CVE-2008-2892 in Com Expshop
Summary
by MITRE
SQL injection vulnerability in the EXP Shop (com_expshop) component 1.0 for Joomla! allows remote attackers to execute arbitrary SQL commands via the catid parameter in a show_payment action to index.php.
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Analysis
by VulDB Data Team • 10/29/2024
The CVE-2008-2892 vulnerability represents a critical sql injection flaw within the EXP Shop component version 1.0 for Joomla! platforms. This vulnerability specifically targets the catid parameter within the show_payment action of the index.php file, creating a pathway for remote attackers to execute arbitrary sql commands against the underlying database system. The flaw stems from inadequate input validation and sanitization practices within the component's code structure, allowing malicious actors to inject sql payloads directly through user-controllable parameters.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious request containing sql injection payloads within the catid parameter of the show_payment action. The component fails to properly escape or validate user input before incorporating it into sql queries, enabling attackers to manipulate the database query execution flow. This vulnerability falls under the CWE-89 category of sql injection, which is classified as a critical weakness in software applications that handle database operations. The attack vector is particularly dangerous because it operates over remote network connections without requiring authentication, making it accessible to any attacker with knowledge of the target system's url structure.
The operational impact of this vulnerability extends beyond simple data theft, as successful exploitation can result in complete database compromise including unauthorized data modification, deletion, or extraction of sensitive information. Attackers can leverage this vulnerability to escalate privileges, create backdoor accounts, or even gain system-level access depending on the database configuration and permissions. The vulnerability affects Joomla! installations running the specific EXP Shop component version 1.0, potentially impacting e-commerce operations and customer data security. From an att&ck framework perspective, this vulnerability maps to the privilege escalation and defense evasion techniques, as attackers can manipulate the database to maintain persistent access while evading detection mechanisms.
Mitigation strategies for CVE-2008-2892 require immediate patching of the affected component to version 1.1 or higher, which includes proper input validation and parameterized query implementations. Organizations should implement web application firewalls to monitor and filter malicious sql injection attempts, while also conducting thorough input sanitization routines throughout their applications. Database administrators should enforce principle of least privilege for database accounts, ensuring that web applications only have necessary permissions to prevent escalation attacks. Regular security audits and vulnerability assessments should be conducted to identify similar injection flaws in other components, with proper code reviews implementing secure coding practices such as parameterized queries and input validation. Additionally, monitoring logs for unusual database access patterns can help detect exploitation attempts and provide early warning systems for such vulnerabilities.