CVE-2014-4672 in Yiiframework
Summary
by MITRE
The CDetailView widget in Yii PHP Framework 1.1.14 allows remote attackers to execute arbitrary PHP scripts via vectors related to the value property.
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Analysis
by VulDB Data Team • 03/24/2022
The CVE-2014-4672 vulnerability resides within the CDetailView widget of the Yii PHP Framework version 1.1.14, representing a critical remote code execution flaw that significantly impacts web application security. This vulnerability specifically targets the value property handling mechanism within the widget, creating a pathway for malicious actors to inject and execute arbitrary PHP code on affected systems. The issue stems from insufficient input validation and sanitization processes that fail to properly filter user-supplied data before it is processed within the widget's rendering logic.
The technical exploitation of this vulnerability occurs when attacker-controlled data is passed through the value property of the CDetailView widget without adequate sanitization. This allows remote attackers to craft malicious input that gets interpreted as executable PHP code rather than mere data, enabling full command execution capabilities on the server hosting the vulnerable application. The flaw operates at the application layer and can be leveraged through various attack vectors including web forms, API endpoints, or parameter manipulation that ultimately feeds data into the vulnerable widget component.
From an operational impact perspective, this vulnerability presents a severe threat to organizations utilizing the Yii framework, as it allows attackers to gain complete control over affected servers. Successful exploitation can result in data breaches, system compromise, unauthorized access to sensitive information, and potential lateral movement within network infrastructures. The vulnerability affects any application built on Yii Framework 1.1.14 that employs the CDetailView widget with user-controllable input, making it particularly dangerous in environments where user input is not properly validated or sanitized before being rendered.
Security practitioners should immediately implement mitigations including upgrading to patched versions of the Yii Framework, implementing strict input validation measures, and employing web application firewalls to monitor for suspicious patterns. The vulnerability aligns with CWE-94, which specifically addresses "Improper Control of Generation of Code ('Code Injection')" and demonstrates characteristics consistent with ATT&CK technique T1059.007 for PHP code injection. Organizations should also establish comprehensive monitoring procedures to detect anomalous code execution patterns and ensure all framework components are regularly updated to prevent exploitation of known vulnerabilities in the application stack.