Home/CVE/A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use .metadat
CVE

CVE-2021-25746

A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use .metadat

A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use .metadata.annotations in 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.

HIGH · CVSS 7.6 EPSS 0.00578
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
CWE-20Improper Input Validation
▤

Affected Products & Versions

1
kubernetes ingress-nginx< 1.2.0
▣

Scoring & Timeline

7.6
HIGH · CVSS v3.1 · jordan@liggitt.net
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 May 2022 · 01:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/kubernetes/ingress-nginx/issues/8503Issue TrackingMitigationThird Party Advisory
https://groups.google.com/g/kubernetes-security-announce/c/hv2-SfdqcfQIssue TrackingMitigationThird Party Advisory
https://security.netapp.com/advisory/ntap-20220609-0006/Third Party Advisory
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