CVE-2007-1935 in ScarAdController
Summary
by MITRE
PHP file inclusion vulnerability in admin/index.php in ScarAdControl (ScarAdController) 1.1 allows remote attackers to execute arbitrary PHP code via a UNC share pathname or a local file pathname in the site parameter, which is accessed by the file_exists function.
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Analysis
by VulDB Data Team • 09/03/2024
The vulnerability identified as CVE-2007-1935 represents a critical server-side include flaw in ScarAdControl version 1.1, specifically within the admin/index.php component. This vulnerability stems from improper input validation and sanitization mechanisms that fail to adequately restrict user-supplied data before it is processed by the application's file handling functions. The flaw manifests when the application accepts a site parameter that is subsequently passed to the file_exists function, creating an avenue for malicious actors to manipulate file access operations through carefully crafted input sequences.
The technical exploitation of this vulnerability leverages the application's reliance on user-provided input to determine file paths for validation purposes. Attackers can supply either UNC share pathnames or local file pathnames through the site parameter, which are then processed by the file_exists function without proper sanitization. This creates a condition where the application's file handling logic can be manipulated to access arbitrary files on the server or execute code through the inclusion of maliciously crafted file paths. The vulnerability directly maps to CWE-98, which describes improper file inclusion vulnerabilities that allow attackers to include files that are not intended to be included, and represents a classic example of a path traversal or file inclusion attack vector.
The operational impact of this vulnerability extends beyond simple code execution to encompass full system compromise capabilities. Remote attackers can leverage this flaw to access sensitive server files, execute arbitrary commands, and potentially gain complete control over the affected system. The vulnerability's reach is amplified by its location within the administrative interface, which typically requires elevated privileges and contains sensitive configuration data. This makes the attack surface particularly dangerous as successful exploitation could lead to unauthorized access to administrative functions, data exfiltration, and persistence mechanisms within the target environment. The vulnerability also aligns with ATT&CK technique T1059, which covers command and scripting interpreter usage, as the attack vector enables execution of arbitrary code through PHP file inclusion.
Mitigation strategies for CVE-2007-1935 should focus on implementing robust input validation and sanitization measures that prevent user-supplied data from being processed as file paths. Organizations should immediately patch the affected ScarAdControl version to the latest available release that addresses this vulnerability. Additionally, implementing proper parameter validation, using allowlists for acceptable file paths, and restricting file access permissions can significantly reduce the risk of exploitation. Network segmentation and firewall rules should be configured to limit access to administrative interfaces, while regular security audits and penetration testing can help identify similar vulnerabilities in other applications. The vulnerability also underscores the importance of following secure coding practices that emphasize input validation, output encoding, and principle of least privilege access controls in web application development.