CVE-2008-6302 in Local Classifieds
Summary
by MITRE
TurnkeyForms Local Classifieds allows remote attackers to bypass authentication and gain administrative access via a direct request to Site_Admin/admin.php.
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Analysis
by VulDB Data Team • 11/11/2024
The vulnerability identified as CVE-2008-6302 affects TurnkeyForms Local Classifieds, a web-based advertising platform that enables users to create and manage classified advertisements. This particular flaw represents a critical authentication bypass vulnerability that allows remote attackers to escalate their privileges without proper authorization. The vulnerability stems from inadequate access controls within the application's administrative interface, specifically in the Site_Admin/admin.php component which serves as the gateway for administrative functions.
The technical implementation of this vulnerability involves a missing or improperly enforced authentication check within the Site_Admin/admin.php file. When an attacker makes a direct HTTP request to this specific endpoint, the application fails to validate whether the requesting user possesses administrative privileges. This design flaw typically occurs when developers assume that certain administrative functions will only be accessed through legitimate user sessions or when session validation mechanisms are bypassed entirely. The vulnerability falls under CWE-285 which specifically addresses improper authorization in software systems, and aligns with ATT&CK technique T1078 which covers valid accounts and privilege escalation through unauthorized access to administrative interfaces.
The operational impact of this vulnerability is severe and far-reaching for any organization utilizing TurnkeyForms Local Classifieds. Remote attackers can immediately gain full administrative control over the classified advertising platform without requiring legitimate credentials or knowledge of user accounts. This unauthorized access enables malicious actors to modify or delete classified listings, manipulate user accounts, access sensitive data, and potentially use the compromised system as a launching point for further attacks within the network. The vulnerability's remote nature means that attackers can exploit it from anywhere on the internet without requiring physical access to the system or local network presence, making it particularly dangerous for web-hosted applications.
Organizations affected by this vulnerability should implement immediate mitigations including applying the vendor-provided security patches or updates, implementing proper access controls for administrative endpoints, and conducting thorough security reviews of all application components that handle privileged operations. Network-level protections such as web application firewalls should be configured to monitor and restrict direct access to administrative URLs, while also implementing robust session management and authentication mechanisms. The remediation process should include comprehensive testing to ensure that all administrative functions properly validate user privileges before executing sensitive operations. Additionally, regular security assessments should be conducted to identify similar authentication bypass vulnerabilities in other application components, as this type of flaw often indicates broader security design issues that may affect other parts of the software ecosystem.