CVE-2009-3528 in MyMsg
Summary
by MITRE
SQL injection vulnerability in Profile.php in MyMsg 1.0.3 allows remote authenticated users to execute arbitrary SQL commands via the uid parameter in a show action.
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Analysis
by VulDB Data Team • 12/03/2024
The vulnerability described in CVE-2009-3528 represents a critical sql injection flaw within the MyMsg 1.0.3 messaging system that specifically targets the profile.php script. This vulnerability exists in the context of a web application that handles user profiles and allows authenticated users to view their personal information through a show action. The flaw manifests when the application fails to properly sanitize or validate user input before incorporating it into sql query constructs, creating an exploitable condition that can be leveraged by malicious actors.
The technical implementation of this vulnerability occurs through the uid parameter within the show action of profile.php, where user-supplied input is directly concatenated into sql statements without adequate sanitization measures. When an authenticated user submits a malicious uid value containing sql payload characters, the application processes this input without proper input validation or parameterized query construction, allowing attackers to manipulate the underlying database queries. This creates a pathway for arbitrary sql command execution that can be used to extract, modify, or delete database contents. The vulnerability specifically aligns with CWE-89 which classifies sql injection as a weakness that allows attackers to execute unauthorized sql commands through improper input handling.
The operational impact of this vulnerability extends beyond simple data theft, as authenticated users can leverage this flaw to gain unauthorized access to the underlying database system. Attackers can potentially extract sensitive user information including credentials, personal data, and system configurations that may lead to further compromise of the application infrastructure. The authenticated nature of the vulnerability means that attackers do not need to perform credential brute force attacks, as they can exploit existing user sessions to execute malicious payloads. This vulnerability can be categorized under the ATT&CK technique T1071.004 for application layer protocol manipulation and T1046 for network service scanning, as exploitation typically involves crafting malicious payloads that can be passed through the application interface.
Mitigation strategies for this vulnerability should focus on implementing proper input validation and parameterized queries throughout the application codebase. The most effective remediation involves converting all sql queries to use parameterized statements or prepared queries that separate user input from sql command structures. Additionally, implementing proper input sanitization routines and employing web application firewalls can provide additional layers of protection. Organizations should also consider implementing proper access controls and monitoring mechanisms to detect unusual query patterns that may indicate exploitation attempts. The vulnerability demonstrates the critical importance of following secure coding practices and adhering to the principle of least privilege when designing web applications that interact with database systems.