CVE-2007-2324 in JulmaCMS
Summary
by MITRE
Directory traversal vulnerability in file.php in JulmaCMS 1.4 allows remote attackers to read arbitrary files via a .. (dot dot) in the file parameter.
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Analysis
by VulDB Data Team • 09/09/2024
The vulnerability identified as CVE-2007-2324 represents a critical directory traversal flaw within the JulmaCMS 1.4 content management system. This security weakness resides in the file.php component where improper input validation allows malicious actors to manipulate file access parameters. The vulnerability specifically manifests when the file parameter contains directory traversal sequences such as .. (dot dot) which enables attackers to navigate beyond the intended directory structure and access arbitrary files on the server filesystem. This type of vulnerability falls under the common weakness enumeration CWE-22, which categorizes directory traversal or path traversal attacks as a fundamental security flaw that permits unauthorized access to files outside the designated directory boundaries.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious request containing directory traversal sequences in the file parameter of the file.php script. By appending .. sequences to the parameter value, the attacker can traverse up the directory hierarchy and access files that should remain protected or restricted. This flaw essentially bypasses normal file access controls and allows the retrieval of sensitive information such as configuration files, database credentials, application source code, or other confidential data stored on the server. The vulnerability demonstrates a classic lack of proper input sanitization and validation, where user-supplied data is directly incorporated into file system operations without adequate security checks or normalization.
The operational impact of this directory traversal vulnerability is significant and potentially devastating for systems running JulmaCMS 1.4. Attackers can leverage this weakness to gain unauthorized access to critical system files, potentially leading to complete system compromise. The vulnerability enables information disclosure attacks where sensitive data can be extracted without authentication, including database connection strings, administrative credentials, or application source code that may contain additional vulnerabilities. Additionally, this flaw can serve as a stepping stone for more sophisticated attacks, allowing threat actors to gather intelligence about the system architecture and potentially escalate privileges or deploy further malicious payloads. The vulnerability affects the confidentiality and integrity aspects of the CIA security triad, as unauthorized file access compromises both data protection and system integrity.
Mitigation strategies for CVE-2007-2324 should focus on implementing proper input validation and sanitization mechanisms within the file.php component. The most effective approach involves normalizing all user-supplied input by removing or encoding directory traversal sequences such as .. or %2e%2e. Implementing a whitelist approach where only pre-approved file paths or names are accepted can prevent unauthorized access attempts. Organizations should also ensure that the affected CMS version is updated to a patched release that addresses this vulnerability, as the original JulmaCMS 1.4 version is no longer supported. System administrators should implement proper file access controls and ensure that web server processes run with minimal required privileges to limit the potential damage from successful exploitation attempts. The vulnerability aligns with ATT&CK technique T1083 which describes the discovery of files and directories, and T1566 which covers the delivery of malicious payloads through web application vulnerabilities. Regular security audits and input validation testing should be conducted to identify similar weaknesses in other applications and prevent similar attacks from occurring in the future.