#VU26458 Permissions, Privileges, and Access Controls in Vault and Vault Enterprise - CVE-2020-10660

Vulnerability identifier: #VU26458

Vulnerability risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-10660

CWE-ID: CWE-264

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 escalate privileges on the system.

The vulnerability exists due to, under certain circumstances, an Entity's Group membership inadvertently includes Groups the Entity no longer has permissions to. A remote authenticated attacker can gain elevated privileges on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Vault: 0.9.0 - 0.9.6, 0.10.0 - 0.11.6, 1.0.0 - 1.0.3, 1.1.0 - 1.1.5, 1.2.0 - 1.2.4, 1.3.0 - 1.3.3

Vault Enterprise: 0.9.0 - 0.9.6, 0.10.0 - 0.11.6, 1.0.0 - 1.0.3, 1.1.0 - 1.1.5, 1.2.0 - 1.2.4, 1.3.0 - 1.3.3

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External links
https://github.com/hashicorp/vault/blob/master/CHANGELOG.md#134-march-19th-2020
https://www.hashicorp.com/blog/category/vault/
https://github.com/hashicorp/vault/commit/18485ee9d4352ac8e8396c580b5941ccf8e5b31a

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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.