CVE-2006-3194 in singapore
Summary
by MITRE
Directory traversal vulnerability in index.php in singapore 0.10.0 and earlier allows remote attackers to read arbitrary files via a .. (dot dot) sequence and trailing null (%00) byte in the (1) gallery and (2) template parameter.
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Analysis
by VulDB Data Team • 07/29/2018
The vulnerability identified as CVE-2006-3194 represents a critical directory traversal flaw affecting the singapore 0.10.0 content management system and earlier versions. This security weakness resides within the index.php script where input validation fails to properly sanitize user-supplied parameters, creating an avenue for malicious actors to access arbitrary files on the affected system. The vulnerability specifically impacts the gallery and template parameters, which are processed without adequate restrictions on path traversal sequences, allowing attackers to navigate beyond the intended directory structure.
The technical implementation of this flaw exploits the absence of proper input sanitization mechanisms that should validate and filter user-provided data before processing. When attackers submit malicious input containing the .. (dot dot) sequence combined with a trailing null byte %00, the application fails to properly handle these special characters in the parameter parsing process. This allows the application to interpret the crafted input as a legitimate path traversal request, enabling access to files outside the designated web root or gallery directories. The vulnerability is particularly dangerous because it can be exploited remotely without requiring authentication, making it an attractive target for automated attacks.
The operational impact of this vulnerability extends beyond simple information disclosure, as it can potentially lead to complete system compromise when combined with other attack vectors. An attacker could leverage this flaw to read sensitive configuration files, database connection details, or even system files that contain credentials and other confidential information. The trailing null byte injection technique adds additional complexity to the exploitation process, as it can bypass certain input validation checks that might otherwise detect the directory traversal attempt. This vulnerability aligns with CWE-22, which specifically addresses improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks.
The security implications of CVE-2006-3194 demonstrate the critical importance of input validation and proper parameter handling in web applications. Attackers can exploit this weakness through simple HTTP requests containing malicious parameters, making it particularly dangerous in environments where the application is publicly accessible. The vulnerability operates at the application layer and can be classified under ATT&CK technique T1083, which covers discovery of file and directory permissions, and T1005, which addresses data from local system. Organizations running affected versions of singapore should immediately implement mitigations including input validation, parameter sanitization, and access controls to prevent unauthorized file access. The flaw represents a fundamental security design issue that highlights the necessity of following secure coding practices and implementing proper input validation mechanisms to prevent such attacks from occurring in the first place.