CVE-2008-5783 in V3 Chat Live Support
Summary
by MITRE
admin/index.php in V3 Chat Live Support 3.0.4 allows remote attackers to bypass authentication and gain administrative access by setting the admin cookie to 1.
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Analysis
by VulDB Data Team • 11/10/2024
The vulnerability identified as CVE-2008-5783 affects V3 Chat Live Support version 3.0.4 and represents a critical authentication bypass flaw that allows remote attackers to escalate privileges without proper credentials. This vulnerability resides within the admin/index.php file where the application fails to properly validate administrative privileges before granting access to administrative functions. The flaw manifests when an attacker manipulates the admin cookie value to 1, effectively circumventing the normal authentication mechanisms that should verify user credentials and administrative status.
This vulnerability directly maps to CWE-287 which describes improper authentication scenarios where systems fail to properly verify user identities or authorization levels. The issue demonstrates a classic case of weak input validation and improper privilege management, where the application relies on client-side cookie values without server-side verification of administrative status. The attack vector is particularly dangerous as it requires no valid credentials and can be executed remotely, making it highly exploitable in automated attack scenarios. The vulnerability exists due to the application's trust in client-side cookie values without implementing proper server-side validation checks that should confirm whether the user actually possesses administrative privileges.
The operational impact of this vulnerability is severe as it allows unauthorized users to gain full administrative control over the V3 Chat Live Support system. Once authenticated as an administrator, attackers can modify system configurations, access sensitive user data, manipulate chat logs, add or remove users, and potentially use the system as a pivot point for further attacks within the network. This privilege escalation capability undermines the entire security model of the application and compromises the integrity and confidentiality of all data managed by the chat support system. The vulnerability affects the availability of the system as well, since attackers could potentially disable or corrupt system functionality through administrative access.
Mitigation strategies for this vulnerability should focus on implementing proper server-side validation of administrative privileges and eliminating trust in client-side cookie values. The application must verify administrative status through secure server-side mechanisms rather than relying on cookie values that can be easily manipulated. Security patches should enforce proper authentication checks before granting administrative access, ensuring that only legitimate administrators with valid credentials can access administrative functions. Additionally, implementing proper session management with secure token generation and validation, along with regular security audits of authentication mechanisms, would prevent similar vulnerabilities from occurring. Organizations should also consider implementing network segmentation and monitoring for unusual administrative access patterns to detect potential exploitation attempts. The vulnerability highlights the importance of following secure coding practices as outlined in the OWASP Top Ten and adheres to ATT&CK technique T1078 which covers valid accounts and legitimate credentials as attack vectors.