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CVE-2023-45814

5.3 · MEDIUM

Bunkum is an open-source protocol-agnostic request server for custom game servers.

Published Oct 18, 2023CWE-772EPSS 0.45%

Overview

CVE-2023-45814 is a medium-severity vulnerability. It was published on October 18, 2023 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Bunkum is an open-source protocol-agnostic request server for custom game servers. First, a little bit of background. So, in the beginning, Bunkum's `AuthenticationService` only supported injecting `IUser`s. However, as Refresh and SoundShapesServer implemented permissions systems support for injecting `IToken`s into endpoints was added. All was well until 4.0. Bunkum 4.0 then changed to enforce relations between `IToken`s and `IUser`s. This wasn't implemented in a very good way in the `AuthenticationService`, and ended up breaking caching in such a way that cached tokens would persist after the lifetime of the request - since we tried to cache both tokens and users. From that point until now, from what I understand, Bunkum was attempting to use that cached token at the start of the next request once cached. Naturally, when that token expired, downstream projects like Refresh would remove the object from Realm - and cause the object in the cache to be in a detached state, causing an ex

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/LittleBigRefresh/Bunkum/commit/6e109464ed9255f558182f001f475a378405ff76GitHubgithub.com/LittleBigRefresh/Bunkum/security/advisories/GHSA-jrf2-h5j6-3rrqGitHubgithub.com/LittleBigRefresh/Bunkum/commit/6e109464ed9255f558182f001f475a378405ff76GitHubgithub.com/LittleBigRefresh/Bunkum/security/advisories/GHSA-jrf2-h5j6-3rrq

How CyberStrike helps

Frequently asked questions

What is CVE-2023-45814?

CVE-2023-45814 is a medium-severity vulnerability. It was published on October 18, 2023 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2023-45814?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-45814?

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-2023-45814?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-45814 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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