CVE-2021-25735 (GCVE-0-2021-25735)

Vulnerability from cvelistv5 – Published: 2021-09-06 11:32 – Updated: 2024-09-16 23:40
VLAI?
Summary
A security issue was discovered in kube-apiserver that could allow node updates to bypass a Validating Admission Webhook. Clusters are only affected by this vulnerability if they run a Validating Admission Webhook for Nodes that denies admission based at least partially on the old state of the Node object. Validating Admission Webhook does not observe some previous fields.
Severity ?
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
CWE
  • CWE-372 - Incomplete Internal State Distinction
Assigner
References
Impacted products
Vendor Product Version
Kubernetes Kubernetes Affected: unspecified , ≤ 1.18.17 (custom)
Affected: unspecified , ≤ 1.19.9 (custom)
Affected: unspecified , ≤ 1.20.5 (custom)
Create a notification for this product.
Credits
Rogerio Bastos & Ari Lima
Show details on NVD website
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  }
}


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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.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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