Vulnerability identifier: #VU56139

Vulnerability risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-37218

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Nomad
Server applications / Virtualization software
Nomad 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 application does not properly impose security restrictions. A remote authenticated attacker can directly communicate with the server agent’s Raft RPC layer which leads to security restrictions bypass and privilege escalation.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Nomad: 1.1.0 - 1.1.3, 1.0.0 - 1.0.9

Nomad Enterprise: 1.0.0 - 1.1.3

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External links
http://github.com/hashicorp/nomad/releases/tag/v1.1.4

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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.