CVE-2009-5090 in Bloggeruniverse
Summary
by MITRE
SQL injection vulnerability in editcomments.php in Bloggeruniverse Beta 2, when magic_quotes_gpc is disabled, allows remote attackers to execute arbitrary SQL commands via the id parameter and possibly other unspecified vectors.
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Analysis
by VulDB Data Team • 11/23/2024
The vulnerability identified as CVE-2009-5090 represents a critical SQL injection flaw within the Bloggeruniverse Beta 2 blogging platform. This security weakness resides in the editcomments.php script which fails to properly sanitize user input before incorporating it into database queries. The vulnerability becomes particularly dangerous when the PHP configuration parameter magic_quotes_gpc is disabled, removing a crucial built-in protection mechanism that would normally escape special characters in GET, POST, and COOKIE data. Without this safeguard, malicious actors can craft specially crafted SQL commands that get executed directly against the underlying database system, potentially leading to complete system compromise.
The technical exploitation of this vulnerability occurs through the id parameter within the editcomments.php script, where attacker-controlled input is directly concatenated into SQL query strings without proper validation or escaping. This flaw falls under the CWE-89 category of SQL Injection, which is classified as a high-severity weakness in the Common Weakness Enumeration system. The vulnerability's impact extends beyond simple data extraction as it can enable attackers to execute arbitrary SQL commands, potentially allowing for data manipulation, unauthorized access to sensitive information, or even complete database compromise. The unspecified vectors mentioned in the description suggest that additional parameters within the same script or related functionality may also be susceptible to similar attacks, indicating a broader code quality issue that requires comprehensive review.
Operationally, this vulnerability creates significant risks for organizations relying on the Bloggeruniverse platform, as remote attackers can exploit it from any location without requiring authentication. The implications include unauthorized data modification, information disclosure, and potential system takeover scenarios. Attackers could leverage this weakness to delete comments, modify user accounts, extract confidential database information, or even escalate privileges within the database environment. The vulnerability's exploitation does not require advanced technical skills beyond basic SQL injection techniques, making it particularly dangerous as it can be targeted by automated attack tools. Security professionals should consider this issue in the context of the MITRE ATT&CK framework, specifically under the T1071.004 technique for application layer protocol and T1190 technique for exploit public-facing application, as it represents a classic example of how insecure input handling can lead to database compromise.
Mitigation strategies for CVE-2009-5090 should prioritize immediate patching of the affected Bloggeruniverse platform to the latest stable release that addresses this vulnerability. Organizations should implement input validation and output encoding mechanisms to prevent malicious SQL code from being executed, utilizing parameterized queries or prepared statements to ensure that user input is properly separated from SQL command structure. The temporary workaround of enabling magic_quotes_gpc should be avoided as it is deprecated in modern PHP versions and can create compatibility issues. Comprehensive security auditing of the platform's codebase should be conducted to identify and remediate similar vulnerabilities in other scripts, particularly focusing on all input parameters that interact with database systems. Network-level protections such as web application firewalls should be deployed to detect and block suspicious SQL injection attempts, while regular security monitoring and log analysis can help identify exploitation attempts. Organizations should also implement proper access controls and database permissions to limit the potential impact of successful exploitation, ensuring that database accounts used by the web application have minimal required privileges to prevent lateral movement within the database environment.