CVE-2007-1721 in C-Arbre
Summary
by MITRE
Multiple PHP remote file inclusion vulnerabilities in C-Arbre 0.6PR7 and earlier allow remote attackers to execute arbitrary PHP code via a URL in the root_path parameter to (1) Richtxt_functions.inc.php, (2) adddocfile.php, (3) auth_check.php, (4) browse_current_category.inc.php, (5) docfile_details.php, (6) main.php, (7) mainarticle.php, (8) maindocfile.php, (9) modify.php, (10) new.php, (11) resource_details.php, or (12) smallsearch.php in lib/; or (13) mwiki/LocalSettings.php.
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Analysis
by VulDB Data Team • 06/25/2025
The vulnerability identified as CVE-2007-1721 represents a critical remote file inclusion flaw affecting C-Arbre version 0.6PR7 and earlier. This vulnerability stems from improper input validation within the application's file handling mechanisms, specifically in the root_path parameter processing. The affected files span across multiple components of the C-Arbre application including various PHP include files and configuration scripts, creating multiple attack vectors that adversaries can exploit to execute arbitrary code on the target system.
The technical flaw manifests when the application accepts user-supplied input through the root_path parameter without adequate sanitization or validation. This allows attackers to inject malicious URLs that are then processed by PHP's include functions, effectively bypassing normal access controls and executing code from remote locations. The vulnerability affects not only core application files but also configuration scripts like LocalSettings.php in the mwiki directory, amplifying the potential impact across different system components.
From an operational standpoint, this vulnerability poses significant risks to system integrity and security posture. Attackers can leverage this flaw to execute malicious code remotely, potentially gaining full control over the affected server, exfiltrating sensitive data, or establishing persistent backdoors. The widespread nature of the vulnerability across multiple files in the lib/ directory and mwiki/ path means that successful exploitation can compromise various application functionalities and data processing components. This vulnerability directly maps to CWE-88, which describes improper neutralization of special elements used in an OS command, and aligns with ATT&CK technique T1190 for exploitation of remote services.
Mitigation strategies should focus on immediate patching of the C-Arbre application to version 0.6PR8 or later, which addresses this vulnerability through proper input validation and sanitization. Additionally, administrators should implement strict input validation at the application level, particularly for all parameters that are used in file inclusion operations. Network-level defenses such as web application firewalls should be configured to monitor and block suspicious URL patterns. The principle of least privilege should be enforced by restricting file inclusion capabilities and ensuring that all user inputs are properly escaped and validated before being processed by the application's include functions. Regular security assessments and code reviews should be conducted to identify similar vulnerabilities in other applications and prevent future exploitation attempts.