CVE-2004-2193 in Cjoverkill
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in trade.php for CJOverkill 4.0.3 allows remote attackers to inject arbitrary web script or HTML via the (1) tms[0] or (2) url parameters.
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Analysis
by VulDB Data Team • 06/05/2019
This cross-site scripting vulnerability exists in the trade.php script of CJOverkill version 4.0.3, representing a critical security flaw that enables remote attackers to execute malicious web scripts or HTML code within the context of affected users' browsers. The vulnerability specifically manifests through two primary attack vectors: the tms[0] parameter and the url parameter, both of which fail to properly sanitize or validate user input before incorporating it into web page responses. This weakness falls under CWE-79 which categorizes improper neutralization of input during web page generation, making it a classic example of client-side code injection vulnerability.
The technical implementation of this vulnerability allows attackers to craft malicious payloads that get executed when legitimate users browse pages containing the compromised trade.php script. When the application processes the tainted tms[0] or url parameters without adequate input validation or output encoding, it inadvertently injects attacker-controlled content directly into HTML responses. This creates an environment where malicious scripts can execute in the victim's browser context, potentially leading to session hijacking, credential theft, or redirection to malicious sites. The vulnerability operates at the application layer and requires no special privileges to exploit, making it particularly dangerous as it can be leveraged through social engineering or by simply enticing users to click on malicious links.
The operational impact of this vulnerability extends beyond simple script injection, as it can enable sophisticated attack chains that align with multiple tactics described in the ATT&CK framework. Attackers can leverage this vulnerability to perform session manipulation and maintain persistent access to compromised systems. The vulnerability also represents a significant risk to user data confidentiality and integrity, as it allows for the execution of malicious code that can capture keystrokes, steal cookies, or modify page content. Organizations using CJOverkill 4.0.3 are particularly vulnerable as the flaw exists in core functionality related to trading operations, potentially compromising the entire user base that interacts with these features.
Mitigation strategies for this vulnerability should focus on implementing proper input validation and output encoding mechanisms. The most effective approach involves sanitizing all user-provided input through strict validation patterns and ensuring that all dynamic content is properly escaped before inclusion in web responses. Organizations should implement Content Security Policy headers to limit script execution and establish proper parameter validation routines that reject or sanitize potentially malicious input. Additionally, upgrading to a patched version of CJOverkill or implementing web application firewalls that can detect and block XSS attack patterns would provide comprehensive protection. Regular security assessments and code reviews should be conducted to identify similar input validation gaps that could lead to comparable vulnerabilities in other application components, aligning with security best practices outlined in OWASP Top Ten and NIST cybersecurity frameworks.