CVE-2007-1613 in MPM Chat
Summary
by MITRE
Directory traversal vulnerability in view.php in MPM Chat 2.5 allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the logi parameter.
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Analysis
by VulDB Data Team • 08/29/2024
The vulnerability identified as CVE-2007-1613 represents a critical directory traversal flaw in MPM Chat 2.5's view.php script that exposes the application to remote code execution attacks. This vulnerability falls under the Common Weakness Enumeration category CWE-22, which specifically addresses improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The flaw exists in the logi parameter handling within the view.php file, where user-supplied input is directly incorporated into file inclusion operations without proper sanitization or validation.
The technical implementation of this vulnerability allows an attacker to manipulate the logi parameter by injecting .. (dot dot) sequences that navigate upward through the directory structure. When the application processes these malicious inputs, it fails to validate or sanitize the user-provided path information, enabling attackers to traverse beyond the intended directory boundaries. This weakness specifically affects the file inclusion mechanism in the chat application, where the logi parameter is used to determine which log files to display or process. The vulnerability is particularly dangerous because it allows attackers to access arbitrary local files on the server, potentially including sensitive configuration files, database credentials, or system files that should remain protected from unauthorized access.
The operational impact of this vulnerability extends beyond simple information disclosure to encompass full system compromise capabilities. An attacker who successfully exploits this vulnerability can execute arbitrary code on the target system, potentially gaining complete control over the web server hosting the MPM Chat application. The attack vector is particularly concerning because it requires no authentication or privileged access, making it a remote code execution vulnerability that can be exploited from any location on the internet. This type of vulnerability aligns with the ATT&CK framework's technique T1059.007 for command and scripting interpreter, as it enables adversaries to execute arbitrary commands on the compromised system. The vulnerability also maps to T1566.001 for valid accounts, as attackers can potentially escalate privileges through the execution of malicious code that may be loaded via the directory traversal attack.
Mitigation strategies for CVE-2007-1613 should focus on implementing proper input validation and sanitization mechanisms within the application. The most effective approach involves implementing a whitelist-based validation system that only allows specific, predetermined values for the logi parameter rather than accepting arbitrary user input. Additionally, developers should implement proper path normalization and validation techniques that prevent directory traversal sequences from being processed. The application should enforce strict access controls and implement proper file access restrictions that prevent unauthorized access to sensitive system files. Security patches for this vulnerability typically involve modifying the view.php script to sanitize user input before processing and implementing proper file inclusion mechanisms that prevent traversal attacks. Organizations should also consider implementing web application firewalls that can detect and block suspicious path traversal attempts, and conduct regular security assessments to identify similar vulnerabilities in other applications. The remediation process should include thorough code reviews focusing on file inclusion operations and input validation mechanisms, as this vulnerability demonstrates the critical importance of proper input sanitization in preventing directory traversal attacks.