CVE-2007-4895 in Sisfo Kampus
Summary
by MITRE
Directory traversal vulnerability in dwoprn.php in Sisfo Kampus 2006 (Semarang 3) allows remote attackers to read arbitrary files via the f parameter.
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Analysis
by VulDB Data Team • 10/06/2024
The vulnerability identified as CVE-2007-4895 represents a critical directory traversal flaw within the dwoprn.php script of Sisfo Kampus 2006 version Semarang 3, a campus management system that was widely deployed in educational institutions during that period. This directory traversal vulnerability specifically affects the file parameter handling mechanism, allowing malicious actors to exploit the system's inadequate input validation processes. The flaw exists in the way the application processes user-supplied input through the f parameter, which is intended to specify file paths for operations within the system's document management functionality.
The technical implementation of this vulnerability stems from insufficient sanitization and validation of user input within the dwoprn.php script. When an attacker supplies a malicious value through the f parameter, the application fails to properly validate or sanitize the input before using it in file operations. This allows attackers to manipulate the file path traversal mechanism by incorporating directory traversal sequences such as ../ or ..\ into the parameter value. The vulnerability specifically enables attackers to bypass normal file access controls and retrieve arbitrary files from the server's file system, potentially exposing sensitive data including configuration files, database credentials, and other system-related information.
The operational impact of this vulnerability extends beyond simple unauthorized file access, as it provides attackers with the capability to escalate their privileges and potentially gain deeper system access. According to CWE classification, this vulnerability maps to CWE-22, which describes improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal. The attack vector is particularly concerning because it requires no authentication or prior system access, making it a significant threat to any organization running the affected Sisfo Kampus system. The vulnerability also aligns with ATT&CK technique T1083, which covers discovering file and directory permissions, as attackers can use this flaw to enumerate system files and understand the underlying system structure.
Organizations affected by this vulnerability face substantial risk of data exposure and potential system compromise. The flaw allows attackers to access not only user documents but potentially sensitive system files, configuration data, and other confidential information that could be used for further attacks. Security practitioners should note that this vulnerability was present in legacy systems that were not regularly updated or patched, highlighting the importance of maintaining current security measures and conducting regular vulnerability assessments. The vulnerability demonstrates the critical need for proper input validation and the principle of least privilege in system design. Mitigation strategies should include immediate patching of the affected software, implementation of proper input validation mechanisms, and restriction of file access permissions to prevent unauthorized file system access. Additionally, network segmentation and monitoring of unusual file access patterns can help detect exploitation attempts and limit the potential impact of such vulnerabilities in production environments.