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
0.001 Low
EPSS
Percentile
43.9%
Severity: High
Date : 2021-11-18
CVE-ID : CVE-2021-25742
Package : kubectl-ingress-nginx
Type : information disclosure
Remote : Yes
Link : https://security.archlinux.org/AVG-2490
The package kubectl-ingress-nginx before version 1.0.4-1 is vulnerable
to information disclosure.
Upgrade to 1.0.4-1.
The problem has been fixed upstream in version 1.0.4.
This issue cannot be fixed solely by upgrading kubectl-ingress-nginx.
To mitigate, set allow-snippet-annotations to false in your ingress-
nginx ConfigMap based on how you deploy ingress-nginx, see the
references for more information.
A security issue was discovered in ingress-nginx before versions 1.0.1
and 0.49.1 where a user that can create or update ingress objects can
use the custom snippets feature to obtain all secrets in the cluster.
This issue cannot be fixed solely by upgrading ingress-nginx. To
mitigate, set allow-snippet-annotations to false in your ingress-nginx
ConfigMap based on how you deploy ingress-nginx, see the references for
more information.
An authenticated remote attacker could disclose all secrets in the
cluster.
https://github.com/kubernetes/ingress-nginx/issues/7837
https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/configmap/#allow-snippet-annotations
https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/configmap/
https://github.com/kubernetes/ingress-nginx/pull/7670
https://github.com/kubernetes/ingress-nginx/commit/4fc57dcc4969cd907c6eeadffbba2d14949db39e
https://security.archlinux.org/CVE-2021-25742
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ArchLinux | any | any | kubectl-ingress-nginx | < 1.0.4-1 | UNKNOWN |
github.com/kubernetes/ingress-nginx/commit/4fc57dcc4969cd907c6eeadffbba2d14949db39e
github.com/kubernetes/ingress-nginx/issues/7837
github.com/kubernetes/ingress-nginx/pull/7670
kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/configmap/
kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/configmap/#allow-snippet-annotations
security.archlinux.org/AVG-2490
security.archlinux.org/CVE-2021-25742
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
0.001 Low
EPSS
Percentile
43.9%