CVE-2007-5786 in GoSamba
Summary
by MITRE
Multiple PHP remote file inclusion vulnerabilities in GoSamba 1.0.1 allow remote attackers to execute arbitrary PHP code via a URL in the include_path parameter to (1) HTML_oben.php, (2) inc_freigabe.php, (3) inc_freigabe1.php, or (4) inc_freigabe3.php in include/; (5) inc_group.php; (6) inc_manager.php; (7) inc_newgroup.php; (8) inc_smb_conf.php; (9) inc_user.php; or (10) main.php.
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Analysis
by VulDB Data Team • 10/09/2024
The vulnerability identified as CVE-2007-5786 represents a critical remote file inclusion flaw in GoSamba 1.0.1, a web-based file sharing and management system. This vulnerability falls under the category of insecure direct object reference and remote code execution, with the specific weakness classified as CWE-88, which deals with improper neutralization of argument delimiters in a command. The flaw exists in the application's handling of user-supplied input within the include_path parameter, which is processed without proper validation or sanitization, creating an avenue for attackers to inject malicious URLs that can be executed within the application context.
The technical implementation of this vulnerability allows an attacker to manipulate the include_path parameter in multiple files within the include directory of GoSamba. The affected files include HTML_oben.php, inc_freigabe.php, inc_freigabe1.php, inc_freigabe3.php, inc_group.php, inc_manager.php, inc_newgroup.php, inc_smb_conf.php, inc_user.php, and main.php. When these files process the include_path parameter, they fail to validate the input source, enabling attackers to specify external URLs that contain malicious PHP code. This creates a scenario where the web server will fetch and execute code from remote locations, effectively allowing arbitrary code execution on the target system.
The operational impact of this vulnerability is severe, as it provides attackers with complete control over the affected web server. An attacker can leverage this flaw to upload and execute malicious scripts, potentially leading to data breaches, system compromise, and further lateral movement within the network. The vulnerability is particularly dangerous because it affects multiple entry points within the application, increasing the attack surface and the likelihood of successful exploitation. This type of vulnerability aligns with ATT&CK technique T1190, which covers exploitation of remote services, and T1059, which covers command and scripting interpreter usage.
From a security perspective, this vulnerability demonstrates poor input validation practices and highlights the importance of implementing proper sanitization of user-supplied data before using it in file inclusion operations. The flaw represents a classic example of how insecure parameter handling can lead to privilege escalation and system compromise. Organizations using GoSamba 1.0.1 should immediately implement mitigations including input validation, parameter sanitization, and the removal of external URL inclusion capabilities. The vulnerability also underscores the necessity of following secure coding practices as outlined in OWASP Top Ten and the principle of least privilege in web application security. This particular vulnerability would typically be addressed through patching the application to properly validate and sanitize all input parameters, implementing proper access controls, and using secure coding practices that prevent the inclusion of external resources without explicit user consent and validation.