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CVE-2021-25748 (GCVE-0-2021-25748)

Vulnerability from cvelistv5 – Published: 2023-05-24 00:00 – Updated: 2025-01-16 21:23
VLAI
Title
Ingress-nginx `path` sanitization can be bypassed with newline character
Summary
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.
Severity
7.6 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-16 21:23 UTC
CWE
  • CWE-20 - Improper Input Validation
Assigner
References
Impacted products
Vendor Product Version CPE status
Kubernetes Kubernetes ingress-nginx Affected: unspecified , < 1.2.1 (custom)
guessed Create a notification for this product.
Date Public
2022-06-10 00:00
Credits
Gafnit Amiga
Show details on NVD website
To clipboard 

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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