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[email protected]CVE-2021-25746

HistoryMay 06, 2022 - 1:15 a.m.

CVE-2021-25746

2022-05-0601:15:09

CWE-20

[email protected]

web.nvd.nist.gov

1290

ingress-nginx

security issue

unauthorized access

controller credentials

nvd

cve-2021-25746

5.5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:S/C:P/I:P/A:N

7.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

LOW

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L

6.9 Medium

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

58.4%

JSON

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.

Affected configurations

NVD

Node

kubernetesingress-nginxRange<1.2.0

CPENameOperatorVersion
kubernetes:ingress-nginxkubernetes ingress-nginxlt1.2.0

CPE	Name	Operator	Version
kubernetes:ingress-nginx	kubernetes ingress-nginx	lt	1.2.0

CNA Affected

[
  {
    "product": "Kubernetes ingress-nginx",
    "vendor": "Kubernetes",
    "versions": [
      {
        "lessThan": "1.2.0",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]