CVE-2018-1571 in QRadar
Summary
by MITRE
IBM QRadar 7.2 and 7.3 could allow a remote authenticated attacker to execute arbitrary commands on the system. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary commands on the system. IBM X-Force ID: 143121.
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Analysis
by VulDB Data Team • 05/08/2023
The vulnerability identified as CVE-2018-1571 affects IBM QRadar versions 7.2 and 7.3, representing a critical remote command execution flaw that undermines the security posture of security information and event management systems. This vulnerability resides within the web-based management interface of QRadar, specifically in how the system processes certain HTTP requests. The flaw allows authenticated attackers to craft malicious requests that bypass normal access controls and execute arbitrary code with the privileges of the affected service account. Such a vulnerability is particularly dangerous in security monitoring environments where QRadar serves as a central point for threat detection and incident response, as it provides attackers with a direct path to compromise the entire security infrastructure.
The technical implementation of this vulnerability stems from insufficient input validation and sanitization within the QRadar web application layer. When processing specially crafted HTTP requests containing malicious payloads, the system fails to properly validate user-supplied data before incorporating it into system commands or executing shell operations. This represents a classic command injection vulnerability that aligns with CWE-77, which specifically addresses command injection flaws where untrusted data is passed to system commands without proper sanitization. The vulnerability manifests when authenticated users submit requests that contain malicious command sequences, allowing the system to interpret and execute these commands as if they were legitimate administrative operations. The attack vector requires authentication, which means that an attacker must first obtain valid credentials, but once achieved, the impact is severe as the compromised account can execute arbitrary commands on the underlying operating system.
The operational impact of CVE-2018-1571 extends far beyond simple privilege escalation, as it fundamentally compromises the integrity and confidentiality of the entire QRadar environment. An attacker who successfully exploits this vulnerability can gain complete control over the system, potentially leading to data exfiltration, lateral movement within the network, and disruption of security monitoring capabilities. The compromised system may be used to establish persistent backdoors, modify security policies, or disable logging mechanisms that would otherwise detect malicious activities. This vulnerability directly impacts the availability and reliability of security operations, as the attacker could potentially cause system downtime or render the security monitoring platform ineffective. From an attack chain perspective, this vulnerability maps to ATT&CK technique T1059.001 for command and scripting interpreter, and T1078 for valid accounts, as it leverages authenticated access to execute malicious commands within the system.
Organizations should implement immediate mitigation strategies including applying the relevant IBM security patches and updates released to address this vulnerability. Network segmentation and access control measures should be strengthened to limit the blast radius of potential exploitation, ensuring that even if credentials are compromised, lateral movement is restricted. Monitoring for suspicious HTTP request patterns and unusual command execution activities should be enhanced through log analysis and security information and event management systems. Regular security assessments and vulnerability scanning should be conducted to identify similar command injection vulnerabilities in other components of the security infrastructure. The remediation process should also include credential rotation and review of access controls to ensure that only authorized personnel maintain the necessary privileges to interact with the QRadar system. Additionally, implementing web application firewalls and input validation controls can provide additional layers of protection against similar attack vectors.