CVE-2020-9522 in ArcSight Enterprise Security Manager
Summary
by MITRE
Cross Site Scripting (XSS) vulnerability in Micro Focus ArcSight Enterprise Security Manager (ESM) product, Affecting versions 7.0.x, 7.2 and 7.2.1 . The vulnerabilities could be remotely exploited resulting in Cross-Site Scripting (XSS) or information disclosure.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 06/17/2020
The CVE-2020-9522 vulnerability represents a critical cross site scripting flaw within the Micro Focus ArcSight Enterprise Security Manager product line, specifically impacting versions 7.0.x through 7.2.1. This vulnerability resides in the web-based administrative interface of the security information and event management platform, which serves as a central hub for enterprise security monitoring and incident response. The affected system operates as a comprehensive security operations center solution that aggregates and analyzes security events from various sources across enterprise networks, making it a prime target for adversaries seeking to compromise security operations.
The technical implementation of this XSS vulnerability stems from insufficient input validation and output encoding within the web application's user interface components. Attackers can exploit this weakness by injecting malicious script code through vulnerable parameters in HTTP requests, particularly within fields that handle user-provided data or configuration parameters. The vulnerability manifests when the application fails to properly sanitize user inputs before rendering them in web pages, allowing malicious scripts to execute within the context of authenticated user sessions. This flaw falls under CWE-79 which specifically addresses Cross-Site Scripting vulnerabilities where web applications fail to properly validate or encode user-supplied data before incorporating it into dynamic web content.
The operational impact of this vulnerability extends beyond simple script execution, as it enables attackers to perform session hijacking, steal administrative credentials, and potentially escalate privileges within the security management environment. When successfully exploited, the XSS attack could allow an attacker to access sensitive security event data, modify security policies, or even inject malicious code into the security operations workflow that could go undetected. This represents a significant threat to enterprise security posture since the ArcSight ESM serves as a critical security operations platform where unauthorized access could provide attackers with comprehensive visibility into network security events and threat detection capabilities.
The remote exploitation capability of this vulnerability means that attackers do not require physical access to the network or direct system compromise to exploit the flaw. This characteristic aligns with ATT&CK technique T1059.007 for Command and Scripting Interpreter, specifically targeting web applications where adversaries can leverage browser-based attacks to compromise system integrity. The vulnerability affects the administrative interface which typically requires elevated privileges, making successful exploitation particularly dangerous as it could enable attackers to gain full administrative control over the security management platform. Organizations relying on ArcSight ESM for security monitoring and incident response would face significant operational disruption if this vulnerability were exploited, potentially allowing attackers to manipulate security alerts, suppress threat detection, or redirect security events to evade detection.
Mitigation strategies for CVE-2020-9522 should prioritize immediate patching of affected versions with the vendor-provided security updates. Organizations should also implement network segmentation to limit access to the ArcSight ESM administrative interface, enforce strict access controls through multi-factor authentication, and establish monitoring for suspicious activities in the security operations center. Additionally, implementing content security policies and regular security assessments of web applications can help detect and prevent similar vulnerabilities. The vulnerability demonstrates the importance of maintaining up-to-date security software and implementing robust input validation practices as outlined in OWASP Top 10 security guidelines. Organizations should also consider implementing web application firewalls to provide additional protection layers against XSS attacks targeting their security management platforms.