CVE-2005-3544 in XMB
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in u2u.php in XMB 1.9.3 allows remote attackers to inject arbitrary web script or HTML via the username parameter.
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Analysis
by VulDB Data Team • 07/13/2018
The vulnerability identified as CVE-2005-3544 represents a classic cross-site scripting flaw within the XMB 1.9.3 bulletin board system, specifically affecting the u2u.php script. This issue falls under the CWE-79 category of Cross-Site Scripting, which is one of the most prevalent and well-documented web application security weaknesses. The vulnerability manifests when the application fails to properly sanitize user input received through the username parameter, creating an opening for malicious actors to execute arbitrary web scripts or HTML code within the context of other users' browsers. The affected script u2u.php appears to handle user-to-user communication functionality, making it a critical point of entry for attackers seeking to compromise user sessions or deface the bulletin board interface.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious username containing embedded script tags or HTML content and submits it through the vulnerable u2u.php endpoint. Upon successful injection, any user who views the malicious username within the application interface will have the injected code executed in their browser context, potentially leading to session hijacking, credential theft, or unauthorized actions performed on behalf of the victim. This type of vulnerability is particularly dangerous in bulletin board systems where user-generated content is displayed without proper sanitization, as it can affect numerous users simultaneously and may be leveraged to spread malicious payloads across the entire user base. The attack vector is entirely remote and requires no privileged access to the system, making it highly exploitable and dangerous for organizations using vulnerable versions of XMB.
The operational impact of CVE-2005-3544 extends beyond simple script injection, as it provides attackers with the capability to perform session hijacking attacks through the exploitation of the XSS vulnerability. According to ATT&CK framework category T1531, this vulnerability enables adversaries to move laterally within the application environment by stealing session cookies or other authentication tokens. The vulnerability also poses significant risks to data integrity and user privacy, as attackers can potentially redirect users to malicious sites, harvest sensitive information, or modify the bulletin board content to spread misinformation. Organizations running XMB 1.9.3 are particularly vulnerable since this version predates many modern security hardening practices and lacks proper input validation mechanisms that would prevent such attacks from succeeding.
Mitigation strategies for this vulnerability must focus on implementing proper input sanitization and output encoding practices throughout the application. The most effective immediate solution involves escaping all user-provided input before rendering it within the web interface, particularly targeting the username parameter in the u2u.php script. Security measures should include implementing Content Security Policy headers to limit script execution, employing proper HTML encoding for all dynamic content, and establishing comprehensive input validation routines that reject or sanitize potentially malicious content. Organizations should also consider implementing web application firewalls to detect and block XSS attack patterns, though the most robust defense lies in proper code-level remediation. According to industry best practices and security standards, this vulnerability should be addressed through comprehensive security code reviews and the implementation of secure coding practices that prevent similar issues from occurring in other application components. The remediation process should involve updating to a patched version of XMB or implementing custom security measures to validate and sanitize all user inputs before processing them within the application context.