CVE-2018-18589 in Real User Monitoring Software
Summary
by MITRE
A potential Remote Arbitrary Code Execution vulnerability has been identified in Micro Focus' Real User Monitoring software, versions 9.26IP, 9.30, 9.40 and 9.50. The vulnerability could be exploited to execute arbitrary code.
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Analysis
by VulDB Data Team • 05/30/2023
The vulnerability identified as CVE-2018-18589 represents a critical remote code execution flaw within Micro Focus Real User Monitoring software across multiple version streams including 9.26IP, 9.30, 9.40, and 9.50. This security weakness resides in the software's handling of user input within its web interface components, creating a pathway for malicious actors to inject and execute arbitrary code on affected systems. The flaw stems from inadequate input validation mechanisms that fail to properly sanitize or escape user-supplied data before processing, allowing attackers to manipulate the application's behavior through crafted malicious payloads.
The technical implementation of this vulnerability demonstrates a classic command injection or code execution vector where improperly validated user parameters are directly processed by the application's backend systems. The affected Real User Monitoring software typically collects and processes user interaction data from web applications, making it a prime target for attackers seeking persistent access to enterprise environments. The vulnerability's exploitation potential is heightened by the software's deployment in production environments where it often runs with elevated privileges, potentially enabling attackers to gain system-level access or escalate their privileges within the monitored network infrastructure.
From an operational impact perspective, this vulnerability creates significant risk for organizations relying on Micro Focus Real User Monitoring for application performance management and user experience monitoring. The remote execution capability means attackers can compromise systems without requiring physical access or local credentials, making detection and prevention more challenging. Organizations utilizing this software may face data breaches, system compromise, and potential lateral movement within their network infrastructure. The vulnerability's presence in multiple versions indicates a widespread exposure across the software's user base, potentially affecting hundreds or thousands of enterprise environments that depend on real user monitoring for business-critical applications.
Security professionals should consider this vulnerability in the context of the CWE-74 standard for improper neutralization of special elements used in data queries, which encompasses code injection vulnerabilities. The ATT&CK framework categorizes this as a command and control activity under the execution phase, where adversaries establish persistence and maintain access through remote code execution capabilities. Organizations should implement immediate mitigations including applying the vendor-provided security patches, network segmentation to limit access to the affected software, and enhanced monitoring of network traffic for suspicious activity patterns. Additional protective measures include deploying web application firewalls, implementing strict input validation policies, and conducting thorough security assessments of all monitored applications to identify potential exploitation vectors. The vulnerability serves as a reminder of the critical importance of maintaining up-to-date security patches and implementing defense-in-depth strategies to protect against remote code execution threats in enterprise monitoring solutions.