CVE-2019-9596 in Enterprise Immune System
Summary
by MITRE
Darktrace Enterprise Immune System before 3.1 allows CSRF via the /whitelisteddomains endpoint.
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Analysis
by VulDB Data Team • 01/27/2024
The vulnerability identified as CVE-2019-9596 affects the Darktrace Enterprise Immune System version 3.1 and earlier, presenting a cross-site request forgery weakness that could enable unauthorized modifications to the system's domain whitelisting configuration. This critical flaw resides within the /whitelisteddomains endpoint, which serves as a control interface for managing trusted domains within the network security framework. The vulnerability stems from insufficient validation of request origins and lack of proper anti-CSRF token implementation, allowing malicious actors to craft crafted requests that would execute unauthorized actions on behalf of authenticated users. This represents a fundamental breakdown in the application's security controls, particularly concerning the integrity of administrative functions that govern network access policies. The flaw aligns with CWE-352, which specifically addresses cross-site request forgery vulnerabilities, and demonstrates how inadequate session management and request validation can create persistent security risks within enterprise security platforms.
The technical exploitation of this vulnerability requires an attacker to leverage a victim's authenticated session within the Darktrace system to modify domain whitelisting rules without their knowledge or consent. The /whitelisteddomains endpoint, which should only accept legitimate administrative requests, fails to properly verify the authenticity of incoming requests, making it susceptible to manipulation through malicious web pages or crafted HTTP requests. Attackers could potentially gain unauthorized access to modify critical network security policies, potentially allowing malicious domains to be added to the whitelist or legitimate domains to be removed from it. This could result in significant network exposure, as the whitelisting functionality directly controls which domains are considered safe for network communication and which are subject to monitoring and potential blocking. The vulnerability's impact extends beyond simple configuration changes, as it could enable attackers to establish persistent access points or bypass security controls that would normally prevent malicious network activity.
The operational impact of this vulnerability within enterprise environments is substantial, as it could allow attackers to compromise network security posture through relatively simple means. Organizations relying on Darktrace for network monitoring and threat detection could experience a complete breakdown in their security controls if an attacker successfully exploits this CSRF vulnerability. The modification of whitelisted domains could enable attackers to establish command and control channels, exfiltrate sensitive data, or maintain persistence within the network by whitelisting malicious domains that would otherwise be blocked. This vulnerability particularly affects organizations that depend heavily on automated security systems, as the compromise of such administrative functions could lead to cascading security failures throughout the network infrastructure. The attack could be executed through social engineering techniques where users are tricked into visiting malicious websites, or through more sophisticated attacks that leverage the victim's browser to make unauthorized requests to the Darktrace system. The vulnerability's presence in the Enterprise Immune System platform means that organizations could lose critical visibility into their network traffic and threat detection capabilities, potentially allowing malicious actors to operate undetected while the system's configuration is being manipulated.
Organizations should implement immediate mitigations including updating to Darktrace Enterprise Immune System version 3.1 or later, which contains the necessary patches to address the CSRF vulnerability. Network administrators should also consider implementing additional security controls such as web application firewalls that can detect and block suspicious requests to the affected endpoint, and ensure that proper session management practices are in place. The implementation of anti-CSRF tokens and proper request origin validation should be enforced throughout the application's administrative interfaces to prevent similar vulnerabilities from occurring in other components. Security teams should conduct thorough assessments of their network security configurations and monitor for any unauthorized changes to domain whitelisting rules that could indicate exploitation attempts. Additionally, organizations should review their incident response procedures to ensure they can quickly detect and respond to potential CSRF attacks targeting security infrastructure, as this type of vulnerability could be used as part of broader attack campaigns. The vulnerability underscores the importance of maintaining current security patches and implementing defense-in-depth strategies that protect critical infrastructure components from attacks targeting administrative interfaces, as these are often prime targets for adversaries seeking persistent access to enterprise networks.