CVE-2022-26978 in TransForm N
Summary
by MITRE • 06/02/2022
Barco Control Room Management Suite web application, which is part of TransForm N before 3.14, is exposing a URL /checklogin.jsp endpoint. The os_username parameters is not correctly sanitized, leading to reflected XSS.
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Analysis
by VulDB Data Team • 06/08/2022
The Barco Control Room Management Suite represents a critical component in broadcast and media production environments where centralized control and monitoring of video systems are essential. This suite is part of the TransForm N platform which serves as a comprehensive solution for managing complex video workflows in professional settings. The vulnerability exists within the web application interface that provides administrative and operational controls for the system. The specific endpoint /checklogin.jsp serves as an authentication verification mechanism that processes user credentials and validates access permissions. This particular vulnerability affects versions prior to 3.14 of the TransForm N platform, indicating that the issue has been acknowledged and addressed by the vendor in subsequent releases.
The technical flaw manifests through improper input validation within the os_username parameter handling mechanism. When user input is directly incorporated into the application's response without adequate sanitization or encoding, it creates an environment where malicious payloads can be executed within the context of a victim's browser. This reflected cross-site scripting vulnerability occurs because the application fails to properly escape or filter special characters that could be interpreted as HTML or JavaScript code. The os_username parameter typically represents the username field in authentication contexts, making it a prime target for attackers seeking to exploit this weakness. The reflected nature of the vulnerability means that the malicious script is executed from the HTTP response that is generated based on the user's input, without any storage or persistence mechanism.
The operational impact of this vulnerability extends beyond simple data theft or session hijacking. In professional broadcast environments where the Control Room Management Suite controls critical infrastructure, an attacker could potentially manipulate the authentication flow to gain unauthorized access to system controls. The reflected XSS could be used to steal session cookies, redirect users to malicious sites, or execute arbitrary JavaScript within the victim's browser context. This vulnerability is particularly concerning in environments where multiple operators access the system simultaneously, as it could be exploited to compromise the integrity of ongoing video operations. The attack vector requires user interaction through a maliciously crafted link, making it a client-side vulnerability that could be delivered via email phishing campaigns or compromised websites. The vulnerability's classification aligns with CWE-79 which specifically addresses cross-site scripting flaws, and it maps to ATT&CK technique T1531 which covers 'Modify System Image' through the exploitation of web application vulnerabilities.
Mitigation strategies should focus on immediate patching of the affected system to version 3.14 or later where the vulnerability has been addressed. Network segmentation and access controls should be implemented to limit exposure of the web application to untrusted networks. Input validation mechanisms should be enhanced to properly sanitize all user-supplied parameters before processing, implementing proper HTML encoding and output escaping techniques. Security monitoring should include detection of suspicious URL patterns and unusual authentication request behaviors. Additionally, implementing a web application firewall can provide additional protection layers against such attacks. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other components of the system. The vulnerability demonstrates the importance of proper input validation in web applications and highlights the need for comprehensive security testing throughout the software development lifecycle. Organizations should also consider implementing security awareness training for system administrators to recognize potential social engineering attacks that could exploit this vulnerability.