#VU26521 Permissions, Privileges, and Access Controls in Elasticsearch - CVE-2020-7009

Vulnerability identifier: #VU26521

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-7009

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Elasticsearch
Web applications / Other software

Vendor: Elastic Stack

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to improper permissions issue. A remote attacker who is able to generate an API key can perform a series of steps that result in an API key being generated with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Elasticsearch: 6.7.0 - 6.7.2, 6.8.0 - 6.8.7, 7.0.0 - 7.0.1, 7.1.0 - 7.1.1, 7.2.0 - 7.2.1, 7.3.0 - 7.3.2, 7.4.0 - 7.4.2, 7.5.0 - 7.5.2, 7.6.0 - 7.6.1

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External links
https://discuss.elastic.co/t/elastic-stack-6-8-8-and-7-6-2-security-update/225920
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.