CVE-2008-6092 in Ranking-script
Summary
by MITRE
phpscripts Ranking Script allows remote attackers to bypass authentication and gain administrative access by sending an admin=ja cookie.
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Analysis
by VulDB Data Team • 11/05/2024
The vulnerability identified as CVE-2008-6092 resides within a php scripts ranking system that fails to properly validate authentication mechanisms, creating a critical security flaw that allows remote attackers to bypass administrative controls. This issue specifically manifests through the manipulation of a single cookie parameter named admin with the value ja, which when transmitted to the vulnerable application grants unauthorized administrative privileges. The flaw represents a classic case of insecure direct object reference and weak session management, where the application relies on client-side cookie values rather than server-side validation to determine administrative access levels. This vulnerability falls under the broader category of authentication bypass flaws and can be classified as CWE-287, which addresses improper handling of authentication tokens and credentials.
The technical implementation of this vulnerability demonstrates a fundamental flaw in the application's security architecture where the system accepts cookie-based authentication without proper verification of user credentials or session legitimacy. Attackers can exploit this by simply crafting a malicious HTTP request that includes the admin=ja cookie parameter, effectively circumventing the normal authentication process that would typically require valid username and password credentials. The vulnerability is particularly dangerous because it allows attackers to gain full administrative control over the ranking script without needing legitimate credentials, making it an attractive target for malicious actors seeking to compromise web applications. This type of vulnerability directly maps to ATT&CK technique T1078.004 which covers legitimate credentials and T1566.002 which involves credential harvesting through web application attacks.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it provides attackers with complete control over the ranking script functionality, potentially allowing them to modify rankings, delete content, manipulate data, and even install malicious code on the affected server. The ease of exploitation means that even relatively unsophisticated attackers can leverage this flaw to compromise the entire system. Organizations running this vulnerable software face significant risks including data manipulation, service disruption, and potential further compromise of their network infrastructure. The vulnerability also creates a persistent threat vector since the cookie-based authentication bypass can be easily automated and scaled across multiple targets. Security professionals should note that this represents a critical issue that requires immediate remediation, as the vulnerability can be exploited remotely without any prior access or knowledge of valid credentials.
Mitigation strategies for CVE-2008-6092 should focus on implementing proper server-side authentication validation and eliminating reliance on client-controlled cookie values for administrative access. Organizations must ensure that all administrative functions require proper credential verification before granting access, implementing robust session management protocols, and validating all user privileges server-side rather than trusting client-supplied information. The fix should involve modifying the application code to validate administrative access through legitimate authentication mechanisms such as username/password combinations, session tokens, or multi-factor authentication methods. Additionally, security measures should include implementing proper input validation, using secure session management practices, and regularly auditing application code for similar authentication bypass vulnerabilities. Organizations should also consider implementing network-level protections such as web application firewalls and intrusion detection systems to monitor for exploitation attempts. This vulnerability underscores the importance of following secure coding practices and proper authentication design principles as outlined in industry standards such as the OWASP Top Ten and NIST cybersecurity frameworks.