CVE-2012-4972 in Helpbox
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in Layton Helpbox 4.4.0 allow remote attackers to inject arbitrary web script or HTML via the (1) sys_solution_id, (2) sys_requesttype_id, (3) sys_problem_desc, (4) sys_solution_desc, (5) sys_problemsummary, (6) usr_Action_testing, (7) usr_Escalation, or (8) usr_Additional_Resources parameter to writesolutionuser.asp or the (9) sys_solution_id parameter to deletesolution.asp.
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Analysis
by VulDB Data Team • 02/24/2019
The CVE-2012-4972 vulnerability represents a critical cross-site scripting flaw affecting Layton Helpbox version 4.4.0, exposing multiple attack vectors that enable remote attackers to execute malicious scripts within user browsers. This vulnerability resides in the web application's input validation mechanisms, specifically targeting parameters within two key ASP scripts: writesolutionuser.asp and deletesolution.asp. The flaw allows attackers to inject arbitrary HTML and JavaScript code through nine distinct parameters, creating a significant surface area for exploitation. The affected parameters include sys_solution_id, sys_requesttype_id, sys_problem_desc, sys_solution_desc, sys_problemsummary, usr_Action_testing, usr_Escalation, usr_Additional_Resources, and the additional sys_solution_id parameter in the deletion script, all of which lack proper sanitization of user-supplied input.
The technical implementation of this vulnerability stems from insufficient input validation and output encoding practices within the Layton Helpbox application. When user-provided data is directly incorporated into web page responses without proper sanitization, it creates an environment where malicious scripts can execute in the context of other users' sessions. This weakness directly aligns with CWE-79, which defines Cross-Site Scripting vulnerabilities as failures to properly encode output data, and represents a classic example of insecure data handling in web applications. The vulnerability operates at the application layer, exploiting the trust relationship between the web application and its users, where legitimate user input becomes a vector for malicious code execution.
The operational impact of this vulnerability extends beyond simple script injection, potentially enabling attackers to perform session hijacking, deface web pages, steal sensitive information, or redirect users to malicious sites. Attackers can leverage these XSS flaws to manipulate the application's functionality, access restricted data, or even escalate privileges within the application's security model. The presence of multiple vulnerable parameters increases the attack surface significantly, as different combinations of injection points can be exploited depending on the attacker's objectives and the specific user context. This vulnerability particularly affects organizations relying on Layton Helpbox for customer support management, where users may inadvertently execute malicious scripts when viewing helpdesk entries or solution descriptions.
Mitigation strategies for CVE-2012-4972 must address both immediate remediation and long-term security improvements within the application architecture. The primary solution involves implementing comprehensive input validation and output encoding mechanisms for all user-supplied data, particularly focusing on the identified vulnerable parameters. Organizations should deploy proper HTML entity encoding for all dynamic content, implement Content Security Policy headers, and utilize parameterized queries where applicable. Additionally, the application should enforce strict input sanitization routines that reject or escape potentially dangerous characters and script tags. Security teams should consider implementing web application firewalls to detect and block suspicious input patterns, while also ensuring that all application components are updated to the latest secure versions. The vulnerability demonstrates the importance of following secure coding practices aligned with OWASP Top Ten guidelines, specifically addressing the need for proper input validation and output encoding to prevent XSS attacks.