Vulnerability identifier: #VU58328

Vulnerability risk: Medium

CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-43415

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Nomad
Server applications / Virtualization software

Vendor: HashiCorp

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests in QEMU task driver. A remote authenticated attacker can bypass the configured allowed paths for images.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Nomad: 1.2.0, 1.0.0 - 1.0.13, 1.1.0 - 1.1.7

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External links
http://github.com/hashicorp/nomad/releases/tag/v1.2.1
http://github.com/hashicorp/nomad/issues/11542

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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.