#VU32871 Input validation error in Kibana - CVE-2020-7016

Vulnerability identifier: #VU32871

Vulnerability risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-7016

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Kibana
Web applications / Other software

Vendor: Elastic Stack

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in Timelion. A remote attacker can trick a victim to visit a specially crafted URL and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Kibana: 6.8.0 - 6.8.10, 7.8.0

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External links
https://discuss.elastic.co/t/elastic-stack-6-8-11-and-7-8-1-security-update/242786
https://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 non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.