CVE-2010-1476 in Com Alphauserpoints
Summary
by MITRE
Directory traversal vulnerability in the AlphaUserPoints (com_alphauserpoints) component 1.5.5 for Joomla! allows remote attackers to read arbitrary files and possibly have unspecified other impact via a .. (dot dot) in the view parameter to index.php.
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Analysis
by VulDB Data Team • 02/03/2025
The vulnerability identified as CVE-2010-1476 represents a critical directory traversal flaw within the AlphaUserPoints component version 1.5.5 for Joomla! platforms. This security weakness stems from inadequate input validation mechanisms that fail to properly sanitize user-supplied parameters before processing them within the application's file system operations. The vulnerability specifically manifests when the application processes the view parameter through the index.php endpoint without sufficient sanitization measures to prevent malicious path manipulation attempts.
The technical exploitation of this vulnerability occurs through the manipulation of the view parameter to include directory traversal sequences such as .. (dot dot) characters. When an attacker crafts a malicious request containing these sequences, the application fails to validate or sanitize the input properly, allowing the traversal logic to interpret the crafted path as a legitimate file system navigation attempt. This flaw enables attackers to bypass normal access controls and potentially access sensitive files that should remain protected within the application's directory structure. The vulnerability falls under the Common Weakness Enumeration category CWE-22, which specifically addresses improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks.
The operational impact of this vulnerability extends beyond simple file reading capabilities to potentially enable more sophisticated attacks depending on the system configuration and file permissions. Remote attackers can leverage this weakness to access configuration files, database credentials, application source code, and other sensitive data that may be stored within the web root or adjacent directories. The unspecified other impacts mentioned in the vulnerability description suggest that the exploitation may potentially lead to privilege escalation, system compromise, or additional attack vectors depending on the specific environment and file access permissions. This vulnerability directly aligns with ATT&CK technique T1083, which focuses on discovering system information through directory listing and file enumeration activities, and T1566, which encompasses the initial access phase through exploitation of vulnerable web applications.
Mitigation strategies for CVE-2010-1476 should prioritize immediate patching of the AlphaUserPoints component to version 1.5.6 or later, which contains the necessary input validation fixes. System administrators should implement comprehensive input validation measures at multiple layers including application-level parameter sanitization, web application firewall rules that detect and block directory traversal patterns, and proper file system access controls that limit the application's ability to access sensitive directories. Additionally, implementing principle of least privilege for web application accounts, regular security audits of installed components, and maintaining up-to-date vulnerability assessments can significantly reduce the risk of exploitation. The vulnerability demonstrates the critical importance of input validation in web applications and serves as a reminder of the necessity for robust security practices in content management systems where third-party components may introduce exploitable weaknesses into otherwise secure environments.