CVE-2006-4472 in Joomla
Summary
by MITRE
Multiple unspecified vulnerabilities in Joomla! before 1.0.11 allow attackers to bypass user authentication via unknown vectors involving the (1) do_pdf command and the (2) emailform com_content task.
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Analysis
by VulDB Data Team • 04/21/2019
The vulnerability identified as CVE-2006-4472 represents a critical authentication bypass flaw in Joomla! content management systems prior to version 1.0.11. This issue stems from unspecified security weaknesses that permit unauthorized access to protected administrative functions through two distinct attack vectors. The first vector involves the do_pdf command while the second relates to the emailform com_content task, both of which were susceptible to manipulation by malicious actors seeking to circumvent normal user authentication mechanisms.
From a technical perspective, this vulnerability operates at the application level and demonstrates a fundamental flaw in the Joomla! authentication system's input validation and access control implementation. The unspecified nature of the underlying flaw suggests that multiple weaknesses may exist within the codebase, potentially involving improper session handling, inadequate privilege checks, or flawed parameter validation routines. The attack vectors specifically target commands that should require valid user credentials to execute, yet were accessible through manipulated parameters or direct command execution paths. This type of vulnerability falls under the category of authentication bypass attacks and aligns with CWE-287 which addresses improper authentication issues.
The operational impact of CVE-2006-4472 is significant for organizations running vulnerable Joomla! installations, as it could enable attackers to gain administrative access to websites without proper credentials. This compromise allows unauthorized individuals to modify website content, install malicious software, access sensitive data, and potentially use the compromised system as a launch point for further attacks within the network. The vulnerability affects the core security model of the CMS, undermining the trust model that users place in the authentication system. Attackers could exploit this weakness to manipulate website content, deface sites, or establish persistent access through the administrative interface.
Mitigation strategies for this vulnerability primarily involve immediate upgrading to Joomla! version 1.0.11 or later, which contains the necessary security patches to address the authentication bypass issues. System administrators should also implement network-level security controls such as web application firewalls to monitor and filter suspicious requests targeting the vulnerable commands. Additionally, regular security audits and vulnerability assessments should be conducted to identify similar weaknesses in other components of the web application stack. The remediation process should include disabling unnecessary administrative functions, implementing proper input validation, and ensuring that access controls are properly enforced for all administrative tasks. Organizations should also consider implementing monitoring solutions that can detect unusual access patterns or attempts to exploit known vulnerabilities in their CMS infrastructure. This vulnerability highlights the importance of maintaining current security patches and following secure coding practices to prevent authentication bypass scenarios that could lead to complete system compromise.
This vulnerability demonstrates the critical importance of proper access control implementation in web applications and aligns with ATT&CK technique T1078 which covers valid accounts and T1566 which covers credential harvesting. The attack surface is particularly concerning because it affects core CMS functionality and could be exploited by attackers with minimal technical expertise, making it a high-priority issue for security teams to address promptly.