CVE-2018-1733 in QRadar SIEM
Summary
by MITRE
IBM QRadar SIEM 7.2 and 7.3 fails to adequately filter user-controlled input data for syntax that has control-plane implications which could allow an attacker to modify displayed content. IBM X-Force ID: 147811.
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Analysis
by VulDB Data Team • 07/04/2023
IBM QRadar SIEM version 7.2 and 7.3 contain a vulnerability that stems from insufficient input validation mechanisms for user-controlled data within the system's syntax processing capabilities. This flaw resides in the application's failure to properly sanitize and filter input parameters that can influence the control plane operations of the security information and event management platform. The vulnerability manifests when user-provided data containing specific syntax patterns is processed without adequate validation, potentially enabling attackers to manipulate the system's display mechanisms and alter content presentation. This issue represents a classic case of inadequate input sanitization that directly impacts the integrity of the user interface and potentially the underlying system behavior. The vulnerability falls under CWE-20, which specifically addresses improper input validation, and demonstrates how insufficient filtering can create attack vectors that extend beyond simple data manipulation to control-plane implications.
The technical execution of this vulnerability involves attackers exploiting the system's insufficient validation of user input to inject syntax elements that can modify how information is displayed within the QRadar interface. This manipulation can occur through various input points where user data is processed and rendered, potentially allowing unauthorized modification of dashboards, reports, or other visual elements that display system information. The control-plane implications arise because the system's response to malformed input may inadvertently trigger changes in how the platform processes or presents data, potentially exposing sensitive information or creating misleading displays that could confuse security analysts. Attackers could leverage this weakness to obscure critical security alerts or present false information, undermining the platform's effectiveness as a security monitoring tool. The vulnerability's impact is particularly concerning in security operations environments where accurate and reliable information display is critical for effective threat detection and response activities.
The operational impact of this vulnerability extends beyond simple content manipulation to potentially compromise the integrity of security monitoring operations within organizations using IBM QRadar SIEM. Security analysts who rely on accurate dashboard displays and event reporting may be misled by modified content, potentially causing them to miss genuine security incidents or respond to false positives. The vulnerability's control-plane implications suggest that attackers might be able to influence system behavior beyond simple display modifications, potentially affecting how the platform processes and correlates security events. Organizations using affected QRadar versions could experience degraded security posture due to compromised data integrity, as the system's ability to accurately present security information becomes questionable. This vulnerability directly affects the trustworthiness of the SIEM platform's output, which is fundamental to effective security operations and incident response procedures.
Organizations should implement immediate mitigations including applying the latest security patches from IBM as soon as they become available, which typically address the input validation deficiencies in the affected versions. Network segmentation and access controls should be strengthened to limit exposure of QRadar systems to untrusted users, reducing the attack surface for exploitation attempts. Input validation mechanisms should be enhanced at multiple layers including application-level filtering and regular security assessments of user input handling processes. Monitoring for suspicious input patterns and anomalous behavior in the system's display processing should be implemented to detect potential exploitation attempts. Security teams should also consider implementing additional logging and audit mechanisms to track changes in displayed content that might indicate exploitation attempts. Regular vulnerability assessments and penetration testing should be conducted to identify similar input validation weaknesses in related systems and applications. The remediation process should align with industry best practices for secure coding and input validation as outlined in standards such as those provided by the Open Web Application Security Project and NIST cybersecurity frameworks.