CVE-2008-7047 in NatterChat
Summary
by MITRE
NatterChat 1.1 allows remote attackers to bypass authentication and gain administrator privileges to read or delete rooms and messages via a direct request to admin/home.asp.
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Analysis
by VulDB Data Team • 11/11/2024
The vulnerability identified as CVE-2008-7047 affects NatterChat version 1.1, a web-based chat application that exposes a critical authentication bypass flaw. This issue stems from inadequate access control mechanisms within the application's administrative interface, specifically targeting the admin/home.asp endpoint. The flaw allows remote attackers to directly access administrative functions without proper authentication, fundamentally compromising the security model of the application. The vulnerability represents a classic case of insufficient authorization checks, where the application fails to validate user credentials before granting access to privileged administrative operations.
The technical implementation of this vulnerability involves the absence of proper session validation and user role verification within the administrative pathways. When attackers make direct requests to the admin/home.asp endpoint, the application does not perform necessary authentication checks or privilege validation. This design flaw creates an attack surface where unauthorized users can escalate their privileges and gain full administrative control over the chat system. The vulnerability operates at the application layer and can be exploited remotely, making it particularly dangerous as it does not require local system access or physical presence. According to CWE standards, this corresponds to CWE-285: Improper Authorization, which specifically addresses insufficient checks for user permissions and access rights.
The operational impact of this vulnerability is severe and multifaceted, as it provides attackers with complete administrative control over the affected system. Once exploited, attackers can read, modify, or delete any chat rooms and messages stored within the application, leading to data integrity compromise and potential information disclosure. The ability to delete content can result in denial of service conditions for legitimate users while the read access capabilities enable unauthorized data harvesting. Additionally, administrative access allows attackers to potentially modify system configurations, add malicious users, or manipulate the application's core functionality. From an attack perspective, this vulnerability aligns with ATT&CK technique T1078: Valid Accounts, as it exploits the application's authentication system to gain elevated privileges without requiring additional credential theft or brute force attempts.
Mitigation strategies for this vulnerability must address the fundamental authorization flaws within the NatterChat application. The primary solution involves implementing robust authentication checks at all administrative endpoints, ensuring that only properly authenticated users with appropriate privileges can access administrative functions. This includes implementing session management controls, enforcing role-based access controls, and validating user permissions before executing privileged operations. Organizations should also consider implementing network-level controls such as firewall rules to restrict access to administrative interfaces, though this should not replace proper application-level authentication. The vulnerability demonstrates the critical importance of defense-in-depth principles, where multiple layers of security controls work together to protect against various attack vectors. Regular security assessments and code reviews should be conducted to identify similar authorization flaws in other application components, as this vulnerability type remains prevalent in legacy web applications.