Denial of service in HashiCorp Vault



Published: 2022-08-04
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-36129
CWE-ID CWE-284
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Vault
Web applications / Modules and components for CMS

Vault Enterprise
Web applications / Modules and components for CMS

Vendor HashiCorp

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper access control

EUVDB-ID: #VU66119

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-36129

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to improper access restrictions to the /sys/storage/raft/join API endpoint. A remote attacker can modifying the voter_status parameter and change the voter status of each node in a cluster and perform a denial of service (DoS) attack against the high availability cluster.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Vault: 1.7.0 - 1.11.0

Vault Enterprise: 1.7.0 - 1.11.0

External links

http://discuss.hashicorp.com/t/hcsec-2022-15-vault-enterprise-does-not-verify-existing-voter-status-when-joining-an-integrated-storage-ha-node/42420


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.



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