Information disclosure in Elastic APM Go Agent

1) Information disclosure

EUVDB-ID: #VU50368

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-22133

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

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

The vulnerability exists due to the Elastic APM agent for Go leaks sensitive HTTP header information when logging the details during an application panic. A remote attacker with ability to intercept traffic to the APM server can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Elastic APM Go Agent: 0.4.0 - 1.10.0

CPE2.3

• cpe:2.3:a:elastic_stack:apm_go_agent:0.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:apm_go_agent:0.5.0:*:*:*:*:*:*:*
• cpe:2.3:a:elastic_stack:apm_go_agent:0.5.1:*:*:*:*:*:*:*

External links

https://www.elastic.co/community/security#ESA-2021-02

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.