CVE-2010-3206 in DiY-CMS
Summary
by MITRE
Multiple PHP remote file inclusion vulnerabilities in DiY-CMS 1.0 allow remote attackers to execute arbitrary PHP code via a URL in the (1) lang parameter to modules/guestbook/blocks/control.block.php, (2) main_module parameter to index.php, and (3) getFile parameter to includes/general.functions.php.
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Analysis
by VulDB Data Team • 03/16/2025
The vulnerability described in CVE-2010-3206 represents a critical remote code execution flaw affecting DiY-CMS version 1.0, specifically targeting three distinct entry points that enable attackers to inject and execute arbitrary PHP code on the affected system. This vulnerability stems from improper input validation and sanitization within the content management system's module handling mechanisms, creating pathways for malicious actors to escalate privileges and compromise the entire web infrastructure. The affected parameters lang, main_module, and getFile demonstrate a pattern of insecure direct object reference vulnerabilities where user-supplied input is directly processed without adequate sanitization or validation checks.
The technical implementation of this vulnerability occurs through the manipulation of HTTP parameters that control module loading and file inclusion processes within the PHP application. When an attacker supplies a malicious URL in any of the three vulnerable parameters, the system fails to validate the input properly and instead directly includes the specified file, allowing remote code execution. This flaw operates at the core of the application's file inclusion mechanism, where the lang parameter in modules/guestbook/blocks/control.block.php, the main_module parameter in index.php, and the getFile parameter in includes/general.functions.php all accept user input without proper filtering. The vulnerability aligns with CWE-94, which describes improper control of generation of code, specifically covering the execution of arbitrary code through insecure file inclusion practices.
From an operational perspective, this vulnerability presents an extremely dangerous attack surface that enables full system compromise through remote exploitation. Attackers can leverage these entry points to upload backdoors, establish persistent access, or execute arbitrary commands on the target server, potentially leading to complete system takeover. The impact extends beyond immediate code execution to include data theft, system enumeration, and the ability to use the compromised system as a pivot point for attacking other networked systems. The vulnerability affects the confidentiality, integrity, and availability of the web application, as demonstrated by the ATT&CK technique T1059.007 for command and scripting interpreter and T1566 for credential access through web application exploitation.
Mitigation strategies for this vulnerability should focus on immediate input validation and sanitization across all user-supplied parameters, implementing proper parameter whitelisting, and eliminating the use of dynamic file inclusion without proper security controls. System administrators should apply the vendor-provided patches immediately, as no reliable workarounds exist for this specific vulnerability. The implementation of web application firewalls with rules specifically targeting file inclusion patterns, along with comprehensive monitoring of file access patterns, can provide additional defense layers. Security measures should also include regular vulnerability assessments, code reviews focusing on input validation, and implementation of the principle of least privilege for web application processes to limit potential damage from successful exploitation attempts.