What software is affected by CVE-2021-25742?

Kubernetes ingress-nginx versions up to 0.49.1 and version 1.0.0, as well as Netapp Trident, are affected by CVE-2021-25742.

What is the severity of CVE-2021-25742?

CVE-2021-25742 has a severity rating of 7.1 (high).

How can an attacker exploit CVE-2021-25742?

An attacker with the ability to create or update ingress objects can exploit CVE-2021-25742 by using the custom snippets feature to gain access to all secrets in the cluster.

Are there any references for CVE-2021-25742?

Yes, you can find more information about CVE-2021-25742 in the following references: [Link 1](https://github.com/kubernetes/ingress-nginx/issues/7837), [Link 2](https://groups.google.com/g/kubernetes-security-announce/c/mT4JJxi9tQY), [Link 3](https://security.netapp.com/advisory/ntap-20211203-0001/).

Vulnerability/
CVE-2021-25742

high

7.6

CWE

29/10/2021

16/9/2024

CVE-2021-25742: Ingress-nginx custom snippets allows retrieval of ingress-nginx serviceaccount token and secrets across all namespaces

Q: What is CVE-2021-25742?

CVE-2021-25742 is a security issue discovered in ingress-nginx where a user that can create or update ingress objects can use the custom snippets feature to obtain all secrets in the cluster.

First published: Fri Oct 29 2021(Updated: )

A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use the custom snippets feature to obtain all secrets in the cluster.

Credit: jordan@liggitt.net

Affected Software	Affected Version	How to fix
Kubernetes ingress-nginx	<0.49.1
Kubernetes ingress-nginx	=1.0.0
Netapp Trident

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Reference Links

Frequently Asked Questions

What is CVE-2021-25742?
CVE-2021-25742 is a security issue discovered in ingress-nginx where a user that can create or update ingress objects can use the custom snippets feature to obtain all secrets in the cluster.
What software is affected by CVE-2021-25742?
Kubernetes ingress-nginx versions up to 0.49.1 and version 1.0.0, as well as Netapp Trident, are affected by CVE-2021-25742.
What is the severity of CVE-2021-25742?
CVE-2021-25742 has a severity rating of 7.1 (high).
How can an attacker exploit CVE-2021-25742?
An attacker with the ability to create or update ingress objects can exploit CVE-2021-25742 by using the custom snippets feature to gain access to all secrets in the cluster.
Are there any references for CVE-2021-25742?
Yes, you can find more information about CVE-2021-25742 in the following references: [Link 1](https://github.com/kubernetes/ingress-nginx/issues/7837), [Link 2](https://groups.google.com/g/kubernetes-security-announce/c/mT4JJxi9tQY), [Link 3](https://security.netapp.com/advisory/ntap-20211203-0001/).

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agent/references
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agent/weakness
agent/author
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canonical/kubernetes ingress-nginx
version/kubernetes ingress-nginx/1.0.0
vendor/netapp
canonical/netapp trident

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