#VU86277 UNIX symbolic link following in Nomad - CVE-2024-1329

Vulnerability identifier: #VU86277

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-1329

CWE-ID: CWE-61

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Nomad
Server applications / Virtualization software

Vendor: HashiCorp

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a symlink following issue. A local user can create a specially crafted symbolic link to a critical file on the system and overwrite it with privileges of the application.

Successful exploitation of this vulnerability may result in privilege escalation.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Nomad: 1.0.0 - 1.0.18, 1.1.0 - 1.1.18, 1.2.0 - 1.2.16, 1.3.0 - 1.3.16, 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.7, 1.4.8, 1.4.9, 1.4.10, 1.4.11, 1.4.12, 1.4.13, 1.4.14, 1.5.0 - 1.5.13, 1.6.0 - 1.6.6, 1.7.0 - 1.7.3

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External links
https://github.com/hashicorp/nomad/releases/tag/v1.5.14
https://github.com/hashicorp/nomad/issues/19888
https://github.com/hashicorp/nomad/releases/tag/v1.6.7
https://github.com/hashicorp/nomad/releases/tag/v1.7.4

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.