CVE-2024-7646: Input Validation Flaw (CVSS 8.8)

Description

A security issue was discovered in ingress-nginx where an actor with permission to create Ingress objects (in the `networking.k8s.io` or `extensions` API group) can bypass annotation validation to inject arbitrary commands and obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster.

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CVSS v3.1 Score

8.8

HIGH

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

Weakness Type (CWE)

CWE-20 Improper Input Validation

References

Other References

https://github.com/kubernetes/ingress-nginx/pull/11719 https://github.com/kubernetes/ingress-nginx/pull/11721 https://github.com/kubernetes/kubernetes/issues/126744 https://groups.google.com/g/kubernetes-security-announce/c/a1__cKjWkfA http://www.openwall.com/lists/oss-security/2024/08/16/5

Frequently Asked Questions

What is CVE-2024-7646? +

A security issue was discovered in ingress-nginx where an actor with permission to create Ingress objects (in the `networking.k8s.io` or `extensions` API group) can bypass annotation validation to inject arbitrary commands and obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2024-7646? +

CVE-2024-7646 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2024-7646? +

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-2024-7646