Information disclosure in Elastic Filebeat

1) Inclusion of Sensitive Information in Log Files

EUVDB-ID: #VU81681

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-31413

CWE-ID: CWE-532 - Information Exposure Through Log Files

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to Filebeat httpjson input allows to store HTTP request Authorization or Proxy-Authorization header contents into log files, when debugging is enabled. A local user can read the log files and gain access to sensitive data.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Filebeat OSS: 7.0.0 - 8.6.2

CPE2.3

• cpe:2.3:a:elastic_stack:filebeat-oss:7.0.0:*:*:*:*:beats:*:*
• cpe:2.3:a:elastic_stack:filebeat-oss:7.0.1:*:*:*:*:beats:*:*
• cpe:2.3:a:elastic_stack:filebeat-oss:7.1.0:*:*:*:*:beats:*:*
• cpe:2.3:a:elastic_stack:filebeat-oss:7.1.1:*:*:*:*:beats:*:*
• cpe:2.3:a:elastic_stack:filebeat-oss:7.2.0:*:*:*:*:beats:*:*
• cpe:2.3:a:elastic_stack:filebeat-oss:7.2.1:*:*:*:*:beats:*:*
• cpe:2.3:a:elastic_stack:filebeat-oss:*:*:*:*:*:beats:*:*
• cpe:2.3:a:elastic_stack:filebeat-oss:7.4.1:*:*:*:*:beats:*:*

External links

https://discuss.elastic.co/t/elastic-stack-8-7-0-7-17-10-security-updates/332327
https://www.elastic.co/community/security#ESA-2023-04

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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