Vulnerability identifier: #VU87103

Vulnerability risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-2048

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Vault
Web applications / Modules and components for CMS
Vault Enterprise
Web applications / Modules and components for CMS

Vendor: HashiCorp

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to improper validation of client TLS certificates when configured with a non-CA certificate as trusted certificate. A remote attacker can create a specially crafted certificate file to bypass authentication process and gain unauthorized access to the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Vault: 1.15.0 - 1.15.4, 1.14.0 - 1.14.9

Vault Enterprise: 1.14.0 - 1.14.9, 1.15.0 - 1.15.4

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External links
http://discuss.hashicorp.com/t/hcsec-2024-05-vault-cert-auth-method-did-not-correctly-validate-non-ca-certificates/63382

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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.