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CVE-2023-25657

7.5 · HIGH

Nautobot is a Network Source of Truth and Network Automation Platform.

Published Feb 21, 2023CWE-94EPSS 1.53%

Overview

CVE-2023-25657 is a high-severity vulnerability. It was published on February 21, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Nautobot is a Network Source of Truth and Network Automation Platform. All users of Nautobot versions earlier than 1.5.7 are impacted by a remote code execution vulnerability. Nautobot did not properly sandbox Jinja2 template rendering. In Nautobot 1.5.7 has enabled sandboxed environments for the Jinja2 template engine used internally for template rendering for the following objects: `extras.ComputedField`, `extras.CustomLink`, `extras.ExportTemplate`, `extras.Secret`, `extras.Webhook`. While no active exploits of this vulnerability are known this change has been made as a preventative measure to protect against any potential remote code execution attacks utilizing maliciously crafted template code. This change forces the Jinja2 template engine to use a `SandboxedEnvironment` on all new installations of Nautobot. This addresses any potential unsafe code execution everywhere the helper function `nautobot.utilities.utils.render_jinja2` is called. Additionally, the documentation that had

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/nautobot/nautobot/commit/d47f157e83b0c353bb2b697f911882c71cf90ca0GitHubgithub.com/nautobot/nautobot/security/advisories/GHSA-8mfq-f5wj-vw5mRefjinja.palletsprojects.com/en/3.0.x/sandbox/#sandboxGitHubgithub.com/nautobot/nautobot/commit/d47f157e83b0c353bb2b697f911882c71cf90ca0GitHubgithub.com/nautobot/nautobot/security/advisories/GHSA-8mfq-f5wj-vw5mRefjinja.palletsprojects.com/en/3.0.x/sandbox/#sandbox

How CyberStrike helps

Frequently asked questions

What is CVE-2023-25657?

CVE-2023-25657 is a high-severity vulnerability. It was published on February 21, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-25657?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-25657?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-25657?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-25657 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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