Denial of service in Elasticsearch OpenID Connect

1) Uncontrolled Recursion

EUVDB-ID: #VU75044

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-1370

CWE-ID: CWE-674 - Uncontrolled Recursion

Exploit availability: No

Description

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

The vulnerability exists due to uncontrolled recursion when processing nested arrays and objects. A remote attacker can pass specially crafted JSON data to the application and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Elasticsearch: 7.2.0 - 8.8.1

CPE2.3

• cpe:2.3:a:elastic_stack:elasticsearch:7.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:7.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:7.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:7.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:7.3.2:*:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:7.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:7.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:7.4.2:*:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:7.5.0:*:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:elasticsearch:7.5.1:*:*:*:*:*:*:*

External links

https://www.elastic.co/community/security#ESA-2023-10

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.