CVE-2006-6938 in NitroTech
Summary
by MITRE
Directory traversal vulnerability in includes/common.php in NitroTech 0.0.3a, as distributed before 2006, allows remote attackers to include arbitrary files via ".." sequences in the root parameter.
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Analysis
by VulDB Data Team • 08/04/2024
The vulnerability described in CVE-2006-6938 represents a classic directory traversal flaw that existed in the NitroTech content management system version 0.0.3a. This type of vulnerability falls under the CWE-22 category, which specifically addresses improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The flaw was present in the includes/common.php file, which served as a critical component in the application's file inclusion mechanism, making it a prime target for exploitation by malicious actors seeking to gain unauthorized access to system resources.
The technical implementation of this vulnerability stems from inadequate input validation within the root parameter handling logic. When attackers submitted crafted ".." sequences through the root parameter, the application failed to properly sanitize or validate these inputs before using them in file inclusion operations. This lack of proper input validation allowed attackers to manipulate the file system paths and potentially access files outside the intended directory structure. The vulnerability specifically affected versions of NitroTech released before 2006, indicating that it was a known issue that had not been properly addressed in the software lifecycle.
The operational impact of this vulnerability was significant as it provided remote attackers with the capability to include arbitrary files on the target system. This could potentially lead to unauthorized access to sensitive system files, configuration data, or even allow for remote code execution if the included files contained malicious code. Attackers could leverage this vulnerability to escalate their privileges, access confidential information, or compromise the entire system. The remote nature of the attack meant that exploitation could occur without requiring physical access to the target system, making it particularly dangerous in networked environments where such applications might be exposed to the internet.
From a cybersecurity perspective, this vulnerability aligns with several ATT&CK techniques including T1059 for command and scripting interpreter and T1566 for credential access through exploitation of software vulnerabilities. The attack pattern demonstrates how seemingly simple input validation flaws can create substantial security risks in web applications. Organizations should implement proper input validation, use secure coding practices, and maintain up-to-date software versions to prevent such vulnerabilities from being exploited. The remediation approach involves implementing proper parameter validation, using allowlists for file paths, and ensuring that all file inclusion operations are properly sandboxed within designated directories. Additionally, regular security audits and penetration testing should be conducted to identify and address similar vulnerabilities in legacy systems that may not have received proper security updates over time.