CVE-2008-1782 in ChartDirector
Summary
by MITRE
phpdemo/viewsource.php in Advanced Software Engineering ChartDirector 4.1 allows remote attackers to read sensitive files via the file parameter.
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Analysis
by VulDB Data Team • 10/20/2024
The vulnerability identified as CVE-2008-1782 resides within the Advanced Software Engineering ChartDirector 4.1 software suite, specifically in the phpdemo/viewsource.php component. This flaw represents a classic path traversal vulnerability that enables remote attackers to access arbitrary files on the target system through improper input validation. The vulnerability manifests when the application fails to adequately sanitize user-supplied input passed through the file parameter, allowing malicious actors to manipulate the file path and gain unauthorized access to sensitive system resources. The affected component operates as a demonstration script designed to display source code files, but due to insufficient validation mechanisms, it becomes a vector for unauthorized file retrieval.
This vulnerability directly maps to CWE-22, which describes improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The flaw operates by allowing attackers to manipulate the file parameter to traverse the file system hierarchy, potentially accessing configuration files, source code, database credentials, or other sensitive information that should remain protected. The attack vector is particularly dangerous because it requires no authentication and can be executed remotely, making it a significant security risk for systems where the vulnerable software is deployed. The vulnerability essentially bypasses normal access controls by exploiting the lack of proper input sanitization and validation mechanisms within the application's file handling logic.
The operational impact of this vulnerability extends beyond simple information disclosure, as it can provide attackers with critical system information that may lead to further exploitation. An attacker who successfully exploits this vulnerability can access not only source code files but potentially sensitive configuration data, database connection strings, or other system artifacts that could facilitate additional attacks. The vulnerability affects systems where ChartDirector 4.1 is installed and accessible over the network, particularly web applications that utilize the demonstration components. This type of vulnerability is particularly concerning in production environments where such demo scripts might be inadvertently left accessible or where proper security hardening has not been implemented.
Mitigation strategies for this vulnerability should focus on implementing proper input validation and sanitization mechanisms. Organizations should ensure that all user-supplied input is rigorously validated before being processed by the application, particularly when handling file paths or names. The implementation of a whitelist approach for acceptable file paths can significantly reduce the risk of path traversal attacks, as can the use of secure coding practices that prevent arbitrary file access. Additionally, proper access controls and authentication mechanisms should be implemented to restrict access to demonstration components and ensure that only authorized personnel can interact with potentially vulnerable functionality. System administrators should also consider removing or disabling unnecessary demo scripts from production environments to minimize the attack surface and reduce the likelihood of exploitation. The vulnerability highlights the importance of following secure coding practices and implementing proper input validation as recommended in the OWASP Top Ten and other industry security standards.