CVE-2007-5174 in actSite
Summary
by MITRE
Directory traversal vulnerability in phpinc/news.php in actSite 1.56 allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the do parameter.
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Analysis
by VulDB Data Team • 10/07/2024
The vulnerability identified as CVE-2007-5174 represents a critical directory traversal flaw within the actSite content management system version 1.56, specifically affecting the phpinc/news.php component. This vulnerability stems from insufficient input validation and improper parameter handling within the application's file inclusion mechanism, creating a pathway for malicious actors to access arbitrary local files on the server. The flaw manifests when the application processes the do parameter without adequate sanitization, allowing attackers to manipulate file paths through directory traversal sequences such as .. (dot dot) notation.
The technical implementation of this vulnerability aligns with CWE-22, which categorizes directory traversal attacks as a common weakness in web applications. When an attacker submits a malicious payload containing directory traversal sequences in the do parameter, the application fails to validate or sanitize this input before using it in file inclusion operations. This allows the attacker to navigate beyond the intended directory structure and potentially access sensitive files such as configuration files, database credentials, or system files that should remain protected from unauthorized access. The vulnerability operates at the application layer, specifically targeting the file inclusion functionality that is commonly used to dynamically load content components.
The operational impact of CVE-2007-5174 extends beyond simple information disclosure, as it provides attackers with the capability to execute arbitrary code on the target system. By leveraging the directory traversal vulnerability, an attacker can include and execute local files that may contain malicious code, potentially leading to complete system compromise. This vulnerability can be exploited through various attack vectors including web application penetration testing, automated scanning tools, or manual exploitation techniques. The attack surface is particularly concerning because it can be combined with other vulnerabilities or used to establish persistent access to the compromised system. The vulnerability also aligns with several ATT&CK techniques including T1059 for command and scripting interpreter and T1566 for credential access through various means.
Mitigation strategies for this vulnerability should focus on implementing robust input validation and sanitization mechanisms within the application. The primary defense involves ensuring that all user-supplied input, particularly parameters used in file inclusion operations, undergoes strict validation to prevent directory traversal sequences from being processed. Application developers should employ whitelisting approaches for file parameters, where only predefined, safe values are accepted. Additionally, implementing proper access controls and privilege separation can limit the damage that can be caused by successful exploitation attempts. The use of secure coding practices including proper file path validation, input filtering, and secure file inclusion methods should be enforced throughout the application development lifecycle. Organizations should also consider implementing web application firewalls and intrusion detection systems to monitor for suspicious patterns of directory traversal attempts and other malicious activities targeting similar vulnerabilities.