CVE-2020-4152 in QRadar Network Security
Summary
by MITRE • 11/08/2021
IBM QRadar Network Security 5.4.0 and 5.5.0 transmits sensitive or security-critical data in cleartext in a communication channel that can be obtained using man in the middle techniques. IBM X-Force ID: 17467.
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Analysis
by VulDB Data Team • 11/11/2021
IBM QRadar Network Security versions 5.4.0 and 5.5.0 contain a critical vulnerability that exposes sensitive data through unencrypted communication channels, making it susceptible to man-in-the-middle attacks. This vulnerability represents a fundamental failure in secure communication protocols where security-critical information flows through network connections without proper encryption mechanisms. The flaw allows attackers positioned between communicating parties to intercept and read sensitive data transmitted between the QRadar system and its network components. This weakness directly violates security best practices and creates a significant attack surface that adversaries can exploit to gain unauthorized access to confidential information.
The technical implementation of this vulnerability stems from the absence of proper encryption mechanisms within the communication protocols used by QRadar Network Security. When the system transmits data between its components, it fails to implement secure communication channels that would normally employ protocols such as TLS or SSL to encrypt data in transit. This cleartext transmission exposes not only user credentials and authentication tokens but also network configuration details, security policies, and potentially sensitive network traffic data that flows through the system. The vulnerability manifests in the application layer where network communications are handled without adequate cryptographic protection, creating an environment where eavesdropping becomes trivial for attackers with network access.
The operational impact of this vulnerability extends beyond simple data exposure, as it fundamentally undermines the security posture of organizations relying on QRadar Network Security for threat detection and network monitoring. Attackers can leverage this weakness to obtain administrative credentials, access control information, and network intelligence that would otherwise remain protected. The implications are particularly severe for organizations operating in regulated environments where data protection requirements mandate encrypted communications. This vulnerability directly enables credential theft attacks, privilege escalation attempts, and comprehensive network reconnaissance activities that could lead to full system compromise. The exposure of security-critical data through cleartext transmission creates opportunities for attackers to understand network architecture, identify vulnerabilities, and plan more sophisticated attacks against the organization's infrastructure.
Organizations should implement immediate mitigations including network segmentation to limit access to QRadar components, deployment of network monitoring tools to detect unusual communication patterns, and implementation of additional security controls to compensate for the missing encryption. The vulnerability aligns with CWE-319, which specifically addresses the exposure of sensitive information through cleartext transmission over networks, and corresponds to ATT&CK technique T1046 for network service scanning and T1566 for credential harvesting through network reconnaissance. Patch management should be prioritized to address this vulnerability, and organizations should consider implementing network-wide encryption requirements for all communications between QRadar components and external systems. The remediation process should include thorough network audits to identify all potential communication channels that may be affected by the cleartext transmission issue and verification that proper encryption protocols are implemented throughout the system architecture.