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CVE-2021-25748

HIGH

7.6

Description

A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use a newline character to bypass the sanitization of the `spec.rules[].http.paths[].path` field of an Ingress object (in the `networking.k8s.io` or `extensions` API group) to obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster.

CVE Details

CVSS v3.1 Score7.6

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published5/24/2023

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

kubernetes:ingress-nginx

Weaknesses (CWE)

CWE-20

References

https://github.com/kubernetes/ingress-nginx/issues/8686(jordan@liggitt.net)

https://groups.google.com/g/kubernetes-security-announce/c/avaRYa9c7I8(jordan@liggitt.net)

https://github.com/kubernetes/ingress-nginx/issues/8686(af854a3a-2127-422b-91ae-364da2661108)

https://groups.google.com/g/kubernetes-security-announce/c/avaRYa9c7I8(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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