CVE-2006-4635 in MySource Classic
Summary
by MITRE
Unspecified vulnerability in MySource Classic 2.14.6, and possibly earlier, allows remote authenticated users, with superuser privileges, to inject arbitrary PHP code via unspecified vectors related to the Equation attribute in Web_Extensions - Notitia (I/II). NOTE: due to lack of details, it is not clear whether this issue is file inclusion, static code injection, or another type of issue.
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Analysis
by VulDB Data Team • 09/23/2017
The vulnerability identified as CVE-2006-4635 affects MySource Classic 2.14.6 and potentially earlier versions of the content management system. This security flaw represents a critical code injection vulnerability that could enable remote authenticated attackers with superuser privileges to execute arbitrary PHP code on the affected system. The vulnerability specifically relates to the Equation attribute within the Web_Extensions - Notitia component, which is part of the broader MySource Classic framework used for web content management and publishing.
The technical nature of this vulnerability remains somewhat ambiguous due to limited disclosure details, which complicates the precise classification of the attack vector. However, based on the context of the affected component and the nature of code injection vulnerabilities, this issue likely involves improper input validation and sanitization of the Equation attribute parameter. The vulnerability could manifest as either a file inclusion vulnerability where user-supplied input is directly incorporated into file paths, or as a static code injection mechanism where malicious PHP code is executed within the application context. This ambiguity in classification makes the vulnerability particularly dangerous as it could potentially allow attackers to bypass multiple security controls depending on the specific exploitation technique used.
The operational impact of this vulnerability is severe and potentially catastrophic for organizations using affected MySource Classic installations. An attacker with superuser privileges could execute arbitrary PHP code, which would provide complete system compromise and potentially allow for privilege escalation beyond the initial authenticated session. This vulnerability could enable attackers to access sensitive data, modify content, install backdoors, or use the compromised system as a pivot point for attacking other systems within the network. The fact that this requires only authenticated superuser access significantly reduces the attack surface complexity, making it particularly dangerous for organizations that maintain extensive MySource Classic deployments.
Security professionals should treat this vulnerability as a critical risk requiring immediate attention and remediation. Organizations should implement comprehensive network monitoring to detect any suspicious code execution patterns and conduct thorough vulnerability assessments to identify all instances of affected MySource Classic installations. The remediation strategy should include applying the latest security patches from the vendor if available, implementing proper input validation controls, and establishing network segmentation to limit the potential impact of such vulnerabilities. Additionally, organizations should review their access control policies to ensure that superuser privileges are strictly limited and monitored, as this vulnerability specifically requires superuser authentication to exploit. This case demonstrates the importance of maintaining up-to-date security patches and proper input validation in web applications, aligning with CWE principles related to code injection vulnerabilities and ATT&CK techniques focused on privilege escalation and code execution.