CVE-2021-25748

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.

CVSS v3 7.6 HIGH

7.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/kubernetes/ingress-nginx/issues/8686	Issue Tracking Mitigation Vendor Advisory
https://groups.google.com/g/kubernetes-security-announce/c/avaRYa9c7I8	Mailing List Mitigation Vendor Advisory
https://github.com/kubernetes/ingress-nginx/issues/8686	Issue Tracking Mitigation Vendor Advisory
https://groups.google.com/g/kubernetes-security-announce/c/avaRYa9c7I8	Mailing List Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:kubernetes:ingress-nginx:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2023-05-24 17:15

Updated : 2024-11-21 05:55

NVD link : CVE-2021-25748

Mitre link : CVE-2021-25748

CVE.ORG link : CVE-2021-25748

JSON object : View

Products Affected

kubernetes

ingress-nginx

CWE

CWE-20

Improper Input Validation

NVD-CWE-noinfo

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