CVE-2019-9546 in Orion Platform
Summary
by MITRE
SolarWinds Orion Platform before 2018.4 Hotfix 2 allows privilege escalation through the RabbitMQ service.
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Analysis
by VulDB Data Team • 05/13/2020
The vulnerability identified as CVE-2019-9546 affects the SolarWinds Orion Platform version 2018.4 and earlier, specifically targeting the RabbitMQ service component that operates with elevated privileges. This privilege escalation vulnerability arises from improper access controls within the service architecture, allowing attackers to exploit a weakness in the service execution model. The flaw enables an attacker with access to the system to elevate their privileges from a standard user account to a higher privilege level that can manipulate core system components. The RabbitMQ service in question typically runs with administrative permissions to facilitate message queuing operations between various SolarWinds modules, but this elevated privilege level creates a dangerous attack surface when combined with insufficient access controls.
The technical implementation of this vulnerability stems from the service's failure to properly validate user permissions during critical operations within the messaging infrastructure. When the RabbitMQ service processes certain commands or requests, it does not adequately verify whether the requesting entity possesses sufficient privileges to execute the operation. This design flaw creates an opportunity for privilege escalation attacks where an attacker can manipulate service interactions to gain elevated access rights. The vulnerability is particularly concerning because it operates at the service level rather than through user-facing interfaces, making it more difficult to detect through standard security monitoring approaches. The flaw exists in how the service handles authentication tokens and access control lists, allowing for unauthorized privilege elevation through crafted service requests.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it can enable attackers to compromise the entire SolarWinds Orion Platform infrastructure. Once elevated privileges are obtained, attackers can manipulate system configurations, access sensitive data repositories, modify monitoring and alerting mechanisms, and potentially establish persistent access points within the network. The affected platform serves as a central monitoring and management system for enterprise networks, making this vulnerability particularly dangerous for organizations that rely on SolarWinds for critical infrastructure monitoring. The impact is amplified because the RabbitMQ service typically operates with broad system access permissions, allowing attackers to potentially access multiple system components beyond just the messaging queue itself. Organizations using the vulnerable platform may experience unauthorized data access, system integrity compromise, and potential lateral movement within their network infrastructure.
Security mitigations for CVE-2019-9546 should focus on immediate patch application to the SolarWinds Orion Platform, specifically targeting the 2018.4 Hotfix 2 release or later versions that contain the necessary access control improvements. Organizations should implement network segmentation to limit access to the RabbitMQ service ports and consider disabling unnecessary service functionality where possible. The implementation of principle of least privilege should be enforced for all service accounts, ensuring that RabbitMQ and other platform services operate with minimal required permissions rather than administrative privileges. Additionally, organizations should enhance monitoring of service access patterns and implement intrusion detection systems that can identify unusual privilege escalation attempts. This vulnerability aligns with CWE-276, which addresses improper privilege management, and maps to ATT&CK technique T1068, which covers local privilege escalation through service manipulation. Regular security assessments should include verification of service account permissions and access control configurations to prevent similar vulnerabilities from emerging in other platform components.