CVE-2009-4173 in UTF-8 CuteNews
Summary
by MITRE
Cross-site request forgery (CSRF) vulnerability in CutePHP CuteNews 1.4.6 and UTF-8 CuteNews before 8b allows remote attackers to hijack the authentication of administrators for requests that create new users, including a new administrator, via an adduser action in the editusers module in index.php.
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Analysis
by VulDB Data Team • 03/29/2025
The CVE-2009-4173 vulnerability represents a critical cross-site request forgery flaw affecting CutePHP CuteNews versions 1.4.6 and earlier, as well as UTF-8 CuteNews versions prior to 8b. This vulnerability resides within the editusers module of the index.php file, specifically targeting the adduser action functionality. The flaw enables remote attackers to exploit the authentication mechanism of administrative accounts by crafting malicious requests that appear legitimate to the vulnerable system. The vulnerability stems from the absence of proper anti-CSRF tokens or validation mechanisms that would normally verify the authenticity of user-initiated requests.
This CSRF vulnerability operates by tricking authenticated administrators into executing unintended actions without their knowledge or consent. When an administrator visits a malicious website or clicks on a compromised link, the attacker can leverage the existing authentication session to perform administrative tasks such as creating new user accounts, including potentially elevating privileges to administrator level. The vulnerability specifically targets the user management functionality of the CuteNews content management system, making it particularly dangerous for organizations relying on this platform for web content management.
The technical implementation of this vulnerability violates fundamental web security principles and aligns with CWE-352, which categorizes cross-site request forgery as a critical web application vulnerability. The flaw demonstrates poor input validation and session management practices, as the system fails to verify the origin of requests or ensure that administrative actions are genuinely initiated by the authenticated user. Attackers can craft specially formatted requests that exploit the trust relationship between the web application and the administrator's browser, effectively bypassing the authentication mechanisms that should protect administrative functions.
The operational impact of this vulnerability extends beyond simple user creation, as it provides attackers with potential privilege escalation capabilities. An attacker who successfully exploits this CSRF vulnerability could establish persistent administrative access to the web application, potentially leading to complete system compromise. The vulnerability affects the integrity and availability of the web application, as unauthorized users could gain administrative control and modify or delete content, create backdoors, or exfiltrate sensitive information from the system. This represents a significant threat to organizations that rely on CuteNews for their web presence.
Security mitigations for this vulnerability involve implementing proper anti-CSRF token mechanisms within the web application's administrative functions. The solution requires generating unique, unpredictable tokens for each user session and validating these tokens with every administrative request. This approach directly addresses the underlying CWE-352 vulnerability by ensuring that requests originate from legitimate user interactions rather than automated malicious scripts. Organizations should also implement proper session management practices, including secure cookie attributes, session timeout mechanisms, and regular security updates to prevent exploitation of known vulnerabilities. Additionally, network-level protections such as web application firewalls and intrusion detection systems can help detect and prevent exploitation attempts, while regular security audits should verify that all administrative functions properly validate request authenticity. The vulnerability also aligns with ATT&CK technique T1078 which covers valid accounts and privilege escalation, as successful exploitation would allow attackers to maintain access through administrative accounts.