CVE-2014-8557 in Channel Platform
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in JExperts Channel Platform 5.0.33_CCB allow remote attackers to inject arbitrary web script or HTML via the (1) usuario.nome variable in an editarUsuario action to usuario.do or (2) titulo.form variable in a novoChamado action to ticket.do.
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Analysis
by VulDB Data Team • 04/04/2022
The CVE-2014-8557 vulnerability represents a critical cross-site scripting flaw within the JExperts Channel Platform version 5.0.33_CCB, exposing the system to remote code execution risks through malicious web script injection. This vulnerability stems from inadequate input validation and sanitization mechanisms within the platform's user interface components, specifically affecting two distinct attack vectors that target different functional modules of the application. The vulnerability is classified under CWE-79 as a classic cross-site scripting weakness, where user-supplied data is improperly handled during processing and subsequent output rendering, creating opportunities for attackers to execute malicious scripts within the context of other users' browsers.
The technical exploitation of this vulnerability occurs through two primary attack vectors that demonstrate the platform's insufficient data sanitization practices. The first vector targets the usuario.nome variable within the editarUsuario action of the usuario.do endpoint, while the second vector exploits the titulo.form variable in the novoChamado action of the ticket.do endpoint. Both attack paths allow remote adversaries to inject arbitrary HTML content and JavaScript code that gets executed when legitimate users view the affected pages. The vulnerability's impact extends beyond simple script execution as it enables attackers to potentially steal session cookies, perform unauthorized actions on behalf of users, or redirect victims to malicious websites, all while maintaining the appearance of legitimate platform functionality.
From an operational perspective, this vulnerability poses significant risks to organizations utilizing the JExperts Channel Platform, particularly those handling sensitive customer data or requiring secure user authentication. The attack surface is broad as the vulnerability affects core user management and ticketing functionalities, which are fundamental to platform operations. Attackers can leverage these flaws to compromise user sessions, escalate privileges, or extract confidential information from authenticated sessions, potentially leading to complete system compromise. The vulnerability's remote exploitability means that attackers need only access to the platform's web interface to initiate attacks, making it particularly dangerous in environments where the platform is publicly accessible or where users have varying levels of security awareness.
The mitigation strategies for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms across all user-facing interfaces. Organizations should immediately implement proper sanitization of all user-supplied data before processing or rendering, utilizing established libraries and frameworks that provide automatic escaping of HTML and JavaScript content. Additionally, the platform should enforce strict content security policies and implement proper session management controls to prevent session hijacking attacks that could result from successful XSS exploitation. Regular security audits and code reviews should be conducted to identify similar vulnerabilities, with the implementation of automated security testing tools to detect potential injection flaws in future development cycles. This vulnerability aligns with ATT&CK technique T1059.007 for command and scripting interpreter and T1566.001 for credential harvesting, highlighting the multi-faceted nature of the threat landscape that such flaws create for enterprise environments.