CVE-2005-4528 in Chatspot
Summary
by MITRE
SQL injection vulnerability in the Chatspot 2.0.0a7 module for phpBB allows remote attackers to execute arbitrary SQL commands via unknown vectors.
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Analysis
by VulDB Data Team • 07/15/2018
The CVE-2005-4528 vulnerability represents a critical sql injection flaw within the Chatspot 2.0.0a7 module for phpBB, a widely deployed bulletin board system that has been a cornerstone of online community platforms since the early 2000s. This vulnerability specifically affects the integration between the Chatspot module and the phpBB framework, creating a pathway for malicious actors to exploit the underlying database communication mechanisms. The vulnerability exists due to inadequate input validation and sanitization within the module's database query construction processes, allowing attackers to inject malicious sql commands through unspecified input vectors that are processed by the phpBB application.
The technical exploitation of this vulnerability stems from the module's failure to properly escape or validate user-supplied data before incorporating it into sql queries. When phpBB processes requests through the Chatspot module, it accepts parameters that should be treated as data rather than executable commands. Attackers can manipulate these parameters to inject sql payloads that bypass normal authentication and authorization mechanisms, potentially gaining complete control over the database backend. This flaw aligns with CWE-89, which categorizes sql injection vulnerabilities as a fundamental weakness in data validation and query construction, making it one of the most persistent and dangerous web application security issues. The vulnerability operates at the application layer, specifically targeting the database interaction components of the phpBB system, and represents a classic example of how third-party modules can introduce security risks that extend beyond the core application's own defenses.
The operational impact of this vulnerability extends far beyond simple data theft, as successful exploitation could enable attackers to execute arbitrary sql commands with the privileges of the database user account used by the phpBB application. This could result in complete database compromise, including the ability to read, modify, or delete sensitive user information, forum content, and potentially system-level data. The implications are particularly severe given that phpBB installations often contain sensitive user data including usernames, email addresses, and potentially personal information that could be leveraged for identity theft or further attacks. From an attacker's perspective, this vulnerability provides a direct path to escalate privileges and maintain persistent access to the compromised system, making it a prime target for exploitation in the broader context of the attack lifecycle as defined by the mitre attack framework. The vulnerability's remote nature means that attackers do not require physical access to the system or knowledge of the internal network structure to exploit it, significantly expanding the attack surface and making it particularly dangerous for publicly accessible web applications.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security architecture improvements. The primary solution involves applying the vendor-supplied patch or upgrading to a version of the Chatspot module that properly sanitizes input data before database queries are executed. Organizations should implement proper input validation mechanisms that filter or escape special characters that could be used in sql injection attacks, particularly focusing on the specific parameters handled by the Chatspot module. Database access controls should be reviewed to ensure that the phpBB application connects to the database using accounts with minimal required privileges, following the principle of least privilege as recommended by security frameworks such as the iso 27001 standard for information security management. Additionally, regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other third-party modules or custom code that might be integrated into the phpBB platform, as this vulnerability demonstrates how seemingly isolated components can create systemic security risks that affect the entire application ecosystem.