2FA bypass in HashiCorp Terraform Enterprise

1) Improper Authentication

EUVDB-ID: #VU65329

Risk: Low

CVSSv3.1: 3.7 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3153

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 authentication process that failed to enforce an organization-level setting that required users within an organization to have two-factor authentication enabled. A remote attacker can bypass 2FA authentication process and gain unauthorized access to the application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Terraform Enterprise: 201804-1 - 202112-1

External links

http://discuss.hashicorp.com/t/hcsec-2021-06-terraform-enterprise-organization-level-mfa-requirement-was-not-enforced/22401

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.