#VU50453 Input validation error in Vault and Vault Enterprise - CVE-2020-25594

Vulnerability identifier: #VU50453

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-25594

CWE-ID: CWE-20

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 non-authenticated attacker to gain access to sensitive information.

HashiCorp Vault and Vault Enterprise allowed for enumeration of Secrets Engine mount paths via unauthenticated HTTP requests.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Vault: 1.6.0 - 1.6.1

Vault Enterprise: 1.5.0 - 1.5.6, 1.6.0 - 1.6.1

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External links
https://discuss.hashicorp.com/t/hcsec-2021-03-vault-api-endpoint-allowed-enumeration-of-secrets-engine-mount-paths-without-authentication/20336

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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.