CVE-2023-37522 in BigFix OSD Bare Metal Server WebUI
Summary
by MITRE • 01/16/2024
HCL BigFix Bare OSD Metal Server WebUI version 311.19 or lower has missing or insecure tags that could allow an attacker to execute a malicious script on the user's browser.
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Analysis
by VulDB Data Team • 02/06/2024
The vulnerability identified as CVE-2023-37522 affects HCL BigFix Bare OSD Metal Server WebUI version 311.19 and earlier installations, representing a critical cross-site scripting flaw that directly impacts user browser security. This vulnerability stems from insufficient input validation and output encoding mechanisms within the web interface, creating an attack vector where malicious actors can inject and execute arbitrary scripts in the context of a victim's browser session. The flaw specifically manifests through missing or insecure HTML tags that should normally sanitize user-provided data before rendering it within the web application's interface. Such insecure practices allow attackers to craft malicious payloads that can be executed when legitimate users interact with the affected web application, potentially leading to complete session hijacking or unauthorized access to sensitive system information.
The technical implementation of this vulnerability aligns with CWE-79, which categorizes cross-site scripting flaws as weaknesses in web application input validation and output encoding. This weakness specifically enables attackers to bypass standard security controls designed to prevent malicious code execution within user browsers. The operational impact extends beyond simple script execution, as attackers can leverage this vulnerability to steal session cookies, perform unauthorized actions on behalf of users, or redirect victims to malicious websites. The vulnerability is particularly concerning in enterprise environments where the BigFix platform is used for critical infrastructure management, as successful exploitation could provide attackers with elevated privileges and access to sensitive organizational data. The attack surface is broadened by the fact that the vulnerability affects the web user interface, meaning that any authenticated user could potentially be targeted through social engineering or by compromising a single user's session.
The exploitation of CVE-2023-37522 follows patterns consistent with ATT&CK technique T1566, specifically the use of malicious content delivery methods to compromise user systems. Attackers typically leverage this vulnerability by crafting specially formatted input that gets reflected back to the user's browser without proper sanitization. The attack chain often begins with initial access through phishing or other social engineering tactics, followed by the delivery of malicious payloads that exploit the XSS vulnerability. The impact on enterprise security operations is significant as this vulnerability can be used to establish persistent access to critical infrastructure management systems. Organizations using the affected HCL BigFix platform face potential data breaches, unauthorized system modifications, and complete compromise of their endpoint management capabilities. The vulnerability's severity is amplified by the fact that it affects the core administrative interface, potentially allowing attackers to modify endpoint configurations, deploy malicious software, or exfiltrate sensitive data from managed systems. System administrators should immediately implement security patches or temporary mitigations while monitoring for potential exploitation attempts in their network traffic logs.
This vulnerability demonstrates the critical importance of proper input validation and output encoding in web application security, particularly in enterprise management platforms where the consequences of exploitation can be severe. Organizations should prioritize updating to patched versions of the HCL BigFix platform, implementing additional security measures such as content security policies, and conducting thorough security assessments of their web applications. The vulnerability also highlights the need for regular security testing and vulnerability scanning to identify similar issues in other enterprise applications that may be similarly affected by cross-site scripting flaws.