CVE-2015-4075 in Helpdesk Pro Plugin
Summary
by MITRE
The Helpdesk Pro plugin before 1.4.0 for Joomla! allows remote attackers to write to arbitrary .ini files via a crafted language.save task.
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Analysis
by VulDB Data Team • 06/25/2024
The CVE-2015-4075 vulnerability affects the Helpdesk Pro plugin for Joomla! versions prior to 1.4.0, presenting a critical security flaw that enables remote attackers to perform unauthorized file operations. This vulnerability specifically targets the language.save task functionality within the plugin, creating a path for attackers to manipulate configuration files on the target system. The issue stems from inadequate input validation and sanitization mechanisms within the plugin's file handling processes, allowing malicious actors to exploit the system's trust in user-provided data.
The technical implementation of this vulnerability occurs through a carefully crafted language.save task that bypasses normal file access controls. When the plugin processes this task, it fails to properly validate or sanitize the file path parameter, enabling attackers to specify arbitrary .ini files for writing operations. This flaw operates at the application layer and leverages the plugin's legitimate file manipulation capabilities to achieve unauthorized file system access. The vulnerability is classified as a path traversal or file injection issue, which can be mapped to CWE-22 Path Traversal and CWE-73 Path Traversal in the Common Weakness Enumeration catalog. Attackers can exploit this weakness to overwrite critical configuration files, potentially leading to complete system compromise or denial of service conditions.
The operational impact of CVE-2015-4075 extends beyond simple file manipulation, as it provides attackers with a foothold for further exploitation within the Joomla installations with vulnerable plugins are commonly targeted in automated scanning campaigns.
Mitigation strategies for CVE-2015-4075 focus primarily on immediate plugin updates to version 1.4.0 or later, which contain the necessary security patches to address the input validation flaws. Organizations should conduct comprehensive vulnerability assessments to identify all instances of the Helpdesk Pro plugin across their Joomla! installations and ensure prompt patch deployment. Additional protective measures include implementing web application firewalls to monitor and filter suspicious language.save task requests, restricting file permissions on configuration directories to minimize potential damage from successful exploitation attempts, and conducting regular security audits of third-party plugins. The vulnerability also highlights the importance of input validation and output encoding practices as recommended by OWASP Top Ten and the SANS Institute's secure coding guidelines, emphasizing that proper sanitization of user-supplied data is critical for preventing such file manipulation attacks.