SB20230221101 - Code Injection in Nautobot

Description

This security bulletin contains information about 1 vulnerability.

1) Code Injection (CVE-ID: CVE-2023-25657)

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to execute arbitrary code.

The vulnerability exists due to improper sandboxing in the Jinja2 template rendering engine when rendering user-supplied template code. A remote user can provide a maliciously crafted template to execute arbitrary code.

The issue affects template rendering for extras.ComputedField, extras.CustomLink, extras.ExportTemplate, extras.Secret, and extras.Webhook, and also impacts other uses of nautobot.utilities.utils.render_jinja2.

Remediation

Install update from vendor's website.

References

• https://github.com/nautobot/nautobot/security/advisories/GHSA-8mfq-f5wj-vw5m
• https://docs.nautobot.com/projects/core/en/stable/release-notes/version-1.5/#v157-2023-01-04