CVE-2008-3299 in eSyndiCat
Summary
by MITRE
eSyndiCat 1.6 allows remote attackers to bypass authentication and gain administrative access by setting the admin_lng cookie value to 1. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
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Analysis
by VulDB Data Team • 06/15/2025
The vulnerability described in CVE-2008-3299 represents a critical authentication bypass flaw in eSyndiCat version 1.6, a content management system that was widely used for web publishing and syndication. This issue stems from a poorly implemented cookie-based authentication mechanism that fails to properly validate administrative privileges, creating a pathway for unauthorized users to escalate their access rights. The vulnerability specifically targets the administrative language selection cookie, which should normally be restricted to authenticated administrators but can be manipulated by any remote attacker to gain full administrative control over the system. Such a flaw fundamentally undermines the security model of the application and represents a significant weakness in the software's access control implementation.
The technical exploitation of this vulnerability occurs through manipulation of the admin_lng cookie parameter, which when set to the value of 1, effectively grants the attacker administrative privileges without proper authentication. This type of vulnerability falls under the category of weak session management and improper access control, as outlined in CWE-285 and CWE-668. The flaw demonstrates a classic case of insufficient authorization checks where the application fails to verify whether the user possesses the necessary privileges to access administrative functions. The cookie value manipulation suggests that the application's authentication logic relies on client-side trust mechanisms rather than server-side validation, making it susceptible to trivial exploitation. This vulnerability is particularly dangerous because it allows for complete system compromise without requiring any special knowledge of the system's internal workings beyond basic cookie manipulation techniques.
From an operational perspective, this authentication bypass vulnerability poses severe risks to organizations using eSyndiCat 1.6, as it provides attackers with unrestricted access to all administrative functions including user management, content modification, system configuration changes, and potential data exfiltration. The impact extends beyond immediate unauthorized access to include potential lateral movement within networks, as administrators often have elevated privileges that could enable further compromise of connected systems. The vulnerability's remote nature means that attackers do not need physical access or local network presence to exploit it, making it particularly dangerous for web-facing applications. According to ATT&CK framework, this vulnerability maps to T1078 (Valid Accounts) and T1566 (Phishing), as it essentially creates a valid administrative account that can be used for persistence and further attacks. Organizations may experience complete system takeover, data breaches, and potential regulatory compliance violations depending on the sensitivity of the information managed by the compromised system.
The remediation approach for this vulnerability requires immediate patching or upgrading of the affected eSyndiCat installation to a version that properly validates administrative privileges before granting access to administrative functions. System administrators should implement proper input validation and authentication checks that do not rely on client-side cookie values for privilege escalation. Security measures should include monitoring for unusual cookie manipulation patterns and implementing proper session management practices that validate user credentials and privileges server-side. Organizations should also consider implementing additional security controls such as multi-factor authentication, network segmentation, and regular security assessments to prevent exploitation of similar vulnerabilities. The vulnerability highlights the importance of robust authentication mechanisms and proper privilege separation in web applications, aligning with security best practices outlined in OWASP Top Ten and NIST cybersecurity frameworks. Regular vulnerability assessments and security updates are essential to prevent exploitation of such flaws that can lead to complete system compromise and unauthorized access to sensitive data.