CVE-2011-0519 in PHP Photo Gallery script
Summary
by MITRE
SQL injection vulnerability in gallery.php in Gallarific PHP Photo Gallery script 2.1 and possibly other versions allows remote attackers to execute arbitrary SQL commands via the id parameter.
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Analysis
by VulDB Data Team • 12/15/2024
The CVE-2011-0519 vulnerability represents a critical sql injection flaw within the Gallarific PHP Photo Gallery script version 2.1 and potentially earlier releases. This vulnerability exists in the gallery.php file where user input is not properly sanitized before being incorporated into sql queries. The specific weakness lies in how the script handles the id parameter, which serves as the primary attack vector for malicious actors seeking to manipulate the underlying database operations. The vulnerability stems from inadequate input validation and improper sql query construction practices that allow attackers to inject malicious sql code through the web interface.
The technical exploitation of this vulnerability occurs when an attacker submits a crafted id parameter value that contains sql injection payloads. The vulnerable script directly incorporates this user-supplied input into sql statements without proper escaping or parameterization, enabling attackers to manipulate the intended database behavior. This flaw falls under the common weakness enumeration CWE-89 which specifically addresses sql injection vulnerabilities, and represents a fundamental failure in input sanitization and query construction practices. The attack can be executed remotely without requiring any special privileges or authentication, making it particularly dangerous for web applications that are publicly accessible.
From an operational impact perspective, this vulnerability creates significant risk for systems running the affected Gallarific gallery script. Attackers can execute arbitrary sql commands, potentially leading to unauthorized data access, data modification, or complete database compromise. The vulnerability allows for privilege escalation attacks where malicious users might gain administrative access to the gallery system and underlying database. Depending on the database configuration and the privileges assigned to the web application, attackers could extract sensitive information including user credentials, gallery metadata, or even access other systems within the database infrastructure. The impact extends beyond simple data theft to include potential service disruption and system compromise.
Mitigation strategies for CVE-2011-0519 should focus on immediate remediation through input validation and parameterized queries. The most effective approach involves implementing proper input sanitization techniques where all user-supplied data is validated against expected formats and ranges before being processed. Database query construction must be updated to utilize prepared statements or parameterized queries that separate sql code from data, preventing malicious input from being interpreted as sql commands. Additionally, the affected gallery script should be updated to the latest available version that addresses this vulnerability, as the original 2.1 version contains known security flaws. Network-level protections such as web application firewalls and intrusion detection systems can provide additional layers of defense, though these should not replace proper code-level fixes. System administrators should also implement proper access controls and database privilege management to limit the potential damage from successful exploitation attempts. The vulnerability aligns with ATT&CK technique T1071.004 for application layer protocol manipulation and T1190 for exploitation of remote services, demonstrating how such flaws can be leveraged in broader attack frameworks.