CVE-2006-4912 in PHP DocWriter
Summary
by MITRE
PHP remote file inclusion vulnerability in PHP DocWriter 0.3 and earlier allows remote attackers to execute arbitrary PHP code via a URL in the script parameter.
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Analysis
by VulDB Data Team • 12/20/2024
The vulnerability identified as CVE-2006-4912 represents a critical remote file inclusion flaw in PHP DocWriter version 0.3 and earlier, classified under CWE-88 as improper neutralization of argument delimiters in a command. This vulnerability specifically affects the way the application handles user-supplied input parameters, creating an exploitable condition where remote attackers can inject malicious URLs into the script parameter. The flaw arises from insufficient input validation and sanitization within the PHP application's parameter handling mechanisms, allowing attackers to manipulate the application's execution flow through crafted input.
The technical exploitation of this vulnerability occurs when the PHP DocWriter application fails to properly validate or sanitize the script parameter before incorporating it into file inclusion operations. When an attacker provides a malicious URL as the script parameter value, the application blindly includes and executes the remote file, effectively allowing arbitrary code execution on the target system. This type of vulnerability falls under the broader category of remote code execution attacks and demonstrates a classic lack of proper input validation and secure coding practices in web applications.
The operational impact of this vulnerability is severe and multifaceted, as it provides attackers with complete control over the affected system. Successful exploitation enables adversaries to execute arbitrary commands, potentially leading to data breaches, system compromise, and further lateral movement within network environments. The vulnerability affects the confidentiality, integrity, and availability of the affected system, making it a high-priority target for exploitation. Organizations running vulnerable versions of PHP DocWriter face significant risk of unauthorized access and potential system takeover.
Mitigation strategies for CVE-2006-4912 should focus on immediate patching and implementation of proper input validation measures. The most effective solution involves upgrading to a patched version of PHP DocWriter that properly validates and sanitizes all user-supplied input parameters. Additionally, implementing strict input validation, disabling remote file inclusion features, and using whitelisting approaches for parameter handling can prevent exploitation. Security controls should include web application firewalls, input sanitization routines, and regular security assessments to identify similar vulnerabilities. Organizations should also consider implementing the principle of least privilege and network segmentation to limit potential damage from successful exploitation attempts. This vulnerability aligns with ATT&CK techniques related to command and control, privilege escalation, and initial access through web application exploitation.