#VU66119 Improper access control in Vault and Vault Enterprise - CVE-2022-36129

Vulnerability identifier: #VU66119

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-36129

CWE-ID: CWE-284

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 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 - 1.7.10, 1.8.0 - 1.8.12, 1.9.0 - 1.9.7, 1.10.0 - 1.11.0

Vault Enterprise: 1.7.0 - 1.7.10, 1.8.0 - 1.8.12, 1.9.0 - 1.9.7, 1.10.0 - 1.11.0

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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

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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.