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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-25748 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST  
CWE-20 Improper Input Validation Kubernetes  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-25748
NVD Published Date:
05/24/2023
NVD Last Modified:
11/21/2024
Source:
Kubernetes