CVE-2007-5187 in Expanded Calendar Module
Summary
by MITRE
SQL injection vulnerability in infusions/calendar_events_panel/show_single.php in the Expanded Calendar 2.x module for PHP-Fusion allows remote attackers to execute arbitrary SQL commands via the sel parameter.
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Analysis
by VulDB Data Team • 10/07/2024
The CVE-2007-5187 vulnerability represents a critical sql injection flaw within the Expanded Calendar 2.x module for PHP-Fusion content management system. This vulnerability specifically affects the infusions/calendar_events_panel/show_single.php script where user input is improperly handled, creating an avenue for malicious actors to execute unauthorized database operations. The vulnerability manifests through the sel parameter which is directly incorporated into sql query construction without adequate sanitization or parameterization mechanisms.
The technical exploitation of this vulnerability occurs when remote attackers manipulate the sel parameter to inject malicious sql code that bypasses normal input validation procedures. This flaw falls under the common weakness enumeration CWE-89 which specifically addresses sql injection vulnerabilities where untrusted data is concatenated or interpolated into sql commands without proper escaping or parameterization. The vulnerability enables attackers to perform unauthorized database operations including but not limited to data retrieval, modification, deletion, and potentially gaining administrative access to the underlying database system.
Operational impact of this vulnerability extends beyond simple data compromise as it provides attackers with the capability to escalate privileges and execute arbitrary commands on the affected system. The Expanded Calendar 2.x module serves as a panel component within PHP-Fusion which means successful exploitation could lead to complete system compromise depending on the database user permissions. Attackers could extract sensitive information such as user credentials, session data, and other confidential database content. Additionally, the vulnerability could be leveraged to modify calendar events, potentially disrupting business operations or creating false information within the calendar system.
The attack vector for this vulnerability is straightforward requiring only a remote connection to the affected web application with knowledge of the vulnerable endpoint. According to ATT&CK framework, this vulnerability maps to technique T1190 - exploit public-facing application which involves targeting applications accessible from the internet. The exploitation process typically involves crafting malicious sql payloads that are designed to manipulate the database queries and extract or modify data as desired. Security professionals should note that this vulnerability exists in older versions of PHP-Fusion modules and represents a classic example of inadequate input validation and output encoding practices.
Mitigation strategies for CVE-2007-5187 include immediate patching of the affected PHP-Fusion installation with the latest security updates from the vendor. Organizations should implement proper parameterized queries or prepared statements to prevent sql injection attacks by separating sql code from data. Input validation and sanitization measures should be strengthened to ensure all user-supplied data is properly escaped before being incorporated into database queries. Network segmentation and access controls should be implemented to limit exposure of vulnerable applications to unauthorized users. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other components of the web application stack. Additionally, implementing web application firewalls and intrusion detection systems can provide additional layers of protection against sql injection attacks targeting the affected module.