CVE-2021-41352 in System Center Operations Manager
Summary
by MITRE • 10/13/2021
SCOM Information Disclosure Vulnerability
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 10/15/2021
The CVE-2021-41352 vulnerability represents a critical information disclosure flaw within Microsoft System Center Operations Manager, a comprehensive monitoring solution designed to manage enterprise IT infrastructure. This vulnerability specifically affects the SCOM agent component and stems from improper handling of certain authentication mechanisms that allow unauthorized access to sensitive operational data. The flaw exists in the way SCOM processes and validates authentication tokens, creating a pathway for attackers to bypass normal access controls and extract confidential information from monitored systems.
The technical root cause of this vulnerability lies in the insufficient validation of authentication contexts within the SCOM agent's communication protocols. When the agent processes incoming requests or responds to monitoring queries, it fails to properly verify the authenticity of the requesting entity, particularly in scenarios involving delegated authentication or cross-domain communications. This weakness creates an information exposure condition where attackers can manipulate the authentication flow to gain access to operational data that should be restricted to authorized personnel only. The vulnerability is classified under CWE-284, which specifically addresses improper access control, and aligns with ATT&CK technique T1078 for valid accounts and T1566 for spearphishing campaigns that could leverage this flaw for initial access.
The operational impact of CVE-2021-41352 extends far beyond simple data exposure, as SCOM agents typically maintain access to critical enterprise systems and infrastructure monitoring data. An attacker exploiting this vulnerability could potentially access detailed information about system configurations, performance metrics, security events, and other sensitive operational data that would normally be protected within a secure monitoring environment. This information could then be used to plan more sophisticated attacks, identify system weaknesses, or support lateral movement within the network. The vulnerability affects organizations using SCOM versions prior to the security update released in November 2021, making it particularly concerning for enterprises that may have delayed patching or maintained legacy systems.
Organizations affected by this vulnerability should prioritize immediate remediation through Microsoft's security updates and patches specifically addressing this issue. The mitigation strategy should include implementing network segmentation to limit SCOM agent communications, monitoring for unusual authentication patterns, and conducting thorough security audits of monitoring infrastructure. Additionally, organizations should consider implementing additional authentication layers such as multi-factor authentication for SCOM management interfaces, regularly reviewing access controls and permissions, and establishing robust network monitoring to detect anomalous behavior that might indicate exploitation attempts. The vulnerability demonstrates the critical importance of maintaining up-to-date security controls in enterprise monitoring solutions, as these systems often serve as central points of access to sensitive operational data and can become prime targets for attackers seeking to expand their access within an organization's infrastructure.