CVE-2006-1965 in Net Clubs Pro
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in aasi media Net Clubs Pro 4.0 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) onuser, (2) pass, (3) chatsys, (4) room, (5) username, and (6) to parameters in (a) sendim.cgi; the (7) username parameter in (b) imessage.cgi; the (8) password parameter in (c) login.cgi; and the (9) cat_id parameter in (d) viewcat.cgi.
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Analysis
by VulDB Data Team • 12/29/2024
The vulnerability described in CVE-2006-1965 represents a critical cross-site scripting flaw affecting aasi media Net Clubs Pro version 4.0 and earlier. This vulnerability resides within multiple CGI scripts that handle user authentication and messaging functionalities, creating multiple attack vectors that can be exploited by remote attackers to inject malicious web scripts or HTML content. The affected parameters span across several core application functions including user authentication, instant messaging, chat system operations, and category viewing mechanisms.
The technical flaw manifests through insufficient input validation and output encoding within the application's CGI scripts. Specifically, the vulnerability affects parameters such as onuser, pass, chatsys, room, username, and to in sendim.cgi, username in imessage.cgi, password in login.cgi, and cat_id in viewcat.cgi. These parameters receive user-supplied input without proper sanitization or encoding, allowing attackers to inject malicious scripts that execute in the context of other users' browsers. The vulnerability is classified as a classic reflected XSS attack where malicious payloads are reflected back to users through the application's response, bypassing standard security mechanisms that would normally prevent such code execution.
The operational impact of this vulnerability is severe and multifaceted. Remote attackers can exploit these XSS flaws to steal session cookies, perform unauthorized actions on behalf of authenticated users, redirect users to malicious websites, or inject phishing content. The attack surface is particularly concerning as it encompasses core authentication mechanisms through login.cgi and messaging systems through sendim.cgi and imessage.cgi. An attacker could potentially gain access to user accounts, manipulate chat communications, or even escalate privileges within the application's user management system. The vulnerability affects the entire user base since the attack requires no prior authentication and can be executed through simple web requests.
The exploitation of this vulnerability aligns with ATT&CK technique T1566.001 for initial access through malicious web content and T1059.001 for command and control through script injection. From a CWE perspective, this vulnerability maps to CWE-79 which describes improper neutralization of input during web page generation, specifically manifesting as a reflected cross-site scripting vulnerability. Organizations using this vulnerable software face significant risk of data breaches, user account compromise, and potential full system infiltration if attackers leverage these XSS vulnerabilities to establish persistent access. The impact extends beyond immediate security concerns to include potential regulatory compliance violations and reputational damage from successful attacks.
Mitigation strategies should focus on immediate input validation and output encoding implementations across all affected CGI scripts. The most effective approach involves implementing strict parameter validation, sanitizing all user inputs before processing, and ensuring proper HTML encoding of output data. Organizations should also implement Content Security Policy headers to limit script execution capabilities, deploy web application firewalls to detect and block malicious payloads, and conduct comprehensive security testing to identify similar vulnerabilities in other application components. Regular security updates and patches should be prioritized to address this vulnerability and prevent future exploitation attempts.