Information disclosure in Elasticsearch

1) Race condition

EUVDB-ID: #VU21429

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-7614

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a remote attacker gain access to sensitive information.

The vulnerability exists due to a race condition error when processing multiple concurrent requests from different users. A remote authenticated user can access response headers with sensitive information from another user.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Elasticsearch: 6.8.0 - 7.2.0

CPE2.3

• cpe:2.3:a:elastic_stack:elasticsearch:6.8.0:*:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:6.8.1:*:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:7.2.0:*:*:*:*:*:*:*

External links

https://www.elastic.co/community/security/ (ESA-2019-07)

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?

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