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CVE-2021-25742

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

Published: Oct 29, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-20
NVD MITRE
7.6CVSSHIGH
EPSS Score
1.8%
Top 24.6%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Workaround Only

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:LIntegrity
Low
A:LAvailability
Low
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Weaknesses

CWE-20NVD-CWE-noinfo

Affected Products

Kubernetes ingress-nginxKubernetes
Mixed
Cloud & SaaS / container-orchestration
ingress-nginxkubernetesCloud & SaaS
tridentnetappHardware Firmware
kubernetesoss-projectUSCloud & SaaSaka k8s
netappcommercialUSHardware Firmware

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Workaround Available

MITRE ATT&CK

1 technique
Initial Access
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References

https://groups.google.com/g/kubernetes-security-announce/c/mT4JJxi9tQY
groups.google.com
https://github.com/kubernetes/ingress-nginx/issues/7837
github.com
https://security.netapp.com/advisory/ntap-20211203-0001/
security.netapp.com

Timeline

Published
Oct 29, 2021
Last Updated
Nov 21, 2024

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