Improper Authentication in HashiCorp Consul



Published: 2021-08-30
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-37219
CWE-ID CWE-287
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Consul
Server applications / Other server solutions

Vendor HashiCorp

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper Authentication

EUVDB-ID: #VU56146

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-37219

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests. A remote attacker can use a specially crafted raft requests to bypass authentication process and gain unauthorized access to the application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Consul: 1.8.0 - 1.8.14, 1.9.0 - 1.9.8, 1.10.0 - 1.10.1


CPE2.3 External links

http://github.com/hashicorp/consul/releases/tag/v1.10.2
http://github.com/hashicorp/consul/releases/tag/v1.8.15
http://github.com/hashicorp/consul/releases/tag/v1.9.9

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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