Vulnerability identifier: #VU18085

Vulnerability risk: Medium

CVSSv3.1: 8.4 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2019-7609

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Kibana
Web applications / Other software

Vendor: Elastic Stack

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in the Timelion visualizer. A remote attacker with access to the Timelion application can send a specially crafted request and execute arbitrary javascript code on the target system with privileges of the Kibana process on the host system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Kibana: 5.6.0 - 5.6.14, 6.6.0

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External links
http://discuss.elastic.co/t/elastic-stack-6-6-1-and-5-6-15-security-update/169077
http://www.elastic.co/community/security

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.