CVE-2021-25742 Ingress-nginx custom snippets allows retrieval of ingress-nginx serviceaccount token and secrets across all namespaces

2021-10-2100:00:00

CWE-20

kubernetes

www.cve.org

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

0.001 Low

EPSS

Percentile

43.9%

JSON

A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use the custom snippets feature to obtain all secrets in the cluster.

CNA Affected

[
  {
    "product": "Kubernetes ingress-nginx",
    "vendor": "Kubernetes",
    "versions": [
      {
        "lessThanOrEqual": "0.49.0",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "unspecified",
        "status": "unknown",
        "version": "next of 0.49.0",
        "versionType": "custom"
      },
      {
        "lessThanOrEqual": "1.0.0",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "unspecified",
        "status": "unknown",
        "version": "next of 1.0.0",
        "versionType": "custom"
      }
    ]
  }
]