Kibana Timelion Arbitrary Code Execution Vulnerability
Actively exploited in the wild. Patch or mitigate immediately — don't wait for a maintenance window.
An unauthenticated attacker, remotely over the network, with no user interaction, can fully compromise the system — steal data, tamper with it and take it offline.
Kibana versions before 5.6.15 and 6.6.1 contain an arbitrary code execution flaw in the Timelion visualizer. An attacker with access to the Timelion application could send a request that will attempt to execute javascript code. This could possibly lead to an attacker executing arbitrary commands with permissions of the Kibana process on the host system.
Inferred from the weakness type (CWE) and how the flaw is reached — the techniques an attacker would chain to exploit this. Real-world corroboration appears here as threat intel is folded in.
Corroborated threat activity referencing this CVE — with source and confidence, not inference.
Named threat actors and observed ATT&CK techniques appear here as intel feeds are folded in — the ATT&CK chain above stays inferred until then.
Generated by Wavense from the CVE record — an immediate mitigation and the permanent fix.
Immediately restrict access to the Timelion application to only trusted administrators through Kibana's role-based access control. Implement network segmentation to limit Kibana's outbound connections and monitor Kibana logs for suspicious process spawning or unusual activity indicative of code execution.
Upgrade affected Kibana instances to version 5.6.15, 6.6.1, or a newer patched release as soon as possible. These versions contain the fix for the arbitrary code execution flaw in the Timelion visualizer, permanently resolving the vulnerability.
An attacker with access to the Timelion visualizer can execute arbitrary JavaScript code on the host system. This could lead to complete system compromise, allowing data exfiltration, service disruption, or further network penetration with the privileges of the Kibana process.
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