CVE-2019-10463 in Dynatrace Application Monitoring Plugin
Summary
by MITRE
A missing permission check in Jenkins Dynatrace Application Monitoring Plugin allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified credentials.
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Analysis
by VulDB Data Team • 10/24/2019
The vulnerability identified as CVE-2019-10463 resides within the Jenkins Dynatrace Application Monitoring Plugin, a widely used tool for integrating application performance monitoring capabilities into continuous integration and delivery pipelines. This issue represents a critical authorization flaw that undermines the security model of Jenkins installations where the plugin is deployed. The vulnerability manifests as a missing permission check that allows unauthorized access to network resources through the plugin's functionality, creating a significant vector for potential exploitation.
The technical flaw specifically involves the Dynatrace plugin's failure to properly validate user permissions when establishing connections to external monitoring endpoints. Attackers with only Overall/Read permission level can leverage this weakness to initiate connections to arbitrary URLs using credentials specified by the attacker. This misconfiguration bypasses the normal access controls that should prevent read-only users from performing network operations that could expose sensitive information or enable further attacks. The vulnerability essentially allows privilege escalation through unauthorized network communication capabilities.
The operational impact of this vulnerability extends beyond simple information disclosure, as it enables attackers to potentially exfiltrate data from internal networks, perform reconnaissance activities against internal systems, or establish command and control channels. The ability to specify arbitrary URLs and credentials means that attackers can target internal services, databases, or other sensitive systems that might be accessible from the Jenkins server. This flaw particularly affects organizations that rely on Jenkins for automated deployment and monitoring, as it creates an attack surface that could be exploited to gain deeper access to their infrastructure. The vulnerability is particularly dangerous in environments where Jenkins servers have network access to sensitive internal resources.
Organizations should immediately update their Jenkins installations to versions that include patches for this vulnerability, as the Dynatrace plugin developers have released fixes that properly enforce permission checks. System administrators should also review their Jenkins permission configurations to ensure that users with read-only access cannot perform network operations that could compromise system security. Additional mitigations include network segmentation to restrict Jenkins server access to necessary external endpoints, implementing firewall rules to limit outbound connections, and conducting regular security audits of installed plugins to identify potential authorization flaws. This vulnerability aligns with CWE-284, which describes improper access control, and represents a clear violation of the principle of least privilege. From an ATT&CK perspective, this vulnerability maps to techniques involving privilege escalation and lateral movement through unauthorized network connections, potentially enabling more sophisticated attack patterns. The flaw demonstrates how seemingly minor permission checks can create significant security risks in complex software ecosystems where multiple components interact with external systems.