CVE-2006-2000 in logMethods
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in /lms/a2z.jsp in logMethods 0.9 allows remote attackers to inject arbitrary web script or HTML via the kwd parameter.
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Analysis
by VulDB Data Team • 08/23/2017
The vulnerability identified as CVE-2006-2000 represents a classic cross-site scripting flaw within the logMethods 0.9 web application, specifically affecting the /lms/a2z.jsp component. This issue arises from insufficient input validation and output encoding mechanisms that fail to properly sanitize user-supplied data before incorporating it into dynamically generated web content. The vulnerability is particularly concerning as it exists in a web application component that likely handles logging or monitoring functions, making it a potential entry point for attackers seeking to compromise user sessions or execute malicious code within the context of the victim's browser.
The technical implementation of this vulnerability stems from the improper handling of the kwd parameter which serves as the attack vector for the XSS exploit. When user input is directly reflected in the web application's response without adequate sanitization or encoding, attackers can inject malicious scripts that execute in the context of other users' browsers. This particular flaw falls under CWE-79 which categorizes improper neutralization of input during web page generation, specifically addressing the failure to properly encode or escape user-controllable data before rendering it in web pages. The vulnerability demonstrates a fundamental weakness in the application's security architecture where input validation occurs too late in the processing chain or not at all.
The operational impact of this vulnerability extends beyond simple script execution as it provides attackers with the capability to hijack user sessions, steal sensitive information, or manipulate the application's functionality from the victim's perspective. Given that this vulnerability exists in a logging or monitoring system component, successful exploitation could potentially allow attackers to gain unauthorized access to sensitive operational data, observe user activities, or even modify system behavior through crafted input. The remote nature of this attack means that exploitation does not require physical access to the system and can be carried out through web-based vectors, making it particularly dangerous in environments where such applications are publicly accessible. This vulnerability aligns with ATT&CK technique T1059.007 which covers scripting through web shells and command and control communications.
Mitigation strategies for this vulnerability should focus on implementing robust input validation and output encoding mechanisms throughout the application's codebase. The most effective immediate solution involves properly encoding all user-controllable data before rendering it in web responses, utilizing appropriate HTML encoding functions or context-specific escaping mechanisms. Additionally, implementing a comprehensive content security policy can provide additional protection against XSS attacks by restricting the sources from which scripts can be loaded and executed. The remediation should include input validation at multiple layers including client-side and server-side validation, ensuring that all parameters including the kwd parameter are properly sanitized before being processed or returned to users. Organizations should also consider implementing web application firewalls that can detect and block suspicious input patterns targeting known XSS vulnerabilities, and conduct regular security assessments to identify similar issues in other components of the application stack.