CVE-2024-39690: capsule Auth Bypass — Exploit & Fix

Description

Capsule is a multi-tenancy and policy-based framework for Kubernetes. In Capsule v0.7.0 and earlier, the tenant-owner can patch any arbitrary namespace that has not been taken over by a tenant (i.e., namespaces without the ownerReference field), thereby gaining control of that namespace. Version 0.7.1 contains a patch.

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CVSS v3.1 Score

8.4

HIGH

CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Weakness Type (CWE)

CWE-863 Incorrect Authorization

Affected Products

Vendor	Product	Versions
projectcapsule	capsule	< 0.7.0

References

Advisories & Patches

https://github.com/projectcapsule/capsule/commit/d620b0457ddec01616b8eab8512a10611611f584

Exploits

https://github.com/projectcapsule/capsule/security/advisories/GHSA-mq69-4j5w-3qwp

Frequently Asked Questions

What is CVE-2024-39690? +

Capsule is a multi-tenancy and policy-based framework for Kubernetes. In Capsule v0.7.0 and earlier, the tenant-owner can patch any arbitrary namespace that has not been taken over by a tenant (i.e., namespaces without the ownerReference field), thereby gaining control of that namespace. Version 0.7.1 contains a patch. It has a CVSS v3.1 base score of 8.4 (HIGH).

How severe is CVE-2024-39690? +

CVE-2024-39690 has a CVSS v3.1 score of 8.4 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-39690? +

CVE-2024-39690 affects products from projectcapsule, specifically: capsule. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-39690? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2024-39690