CVE Tools
Sign in

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
7.6HIGH
NVD MITRE
EPSS Score
1.8%
Top 23.8%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Workaround Only
Self-Check
OpenVAS

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.

No summary for this CVE yet.

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
Open in CVSS calculator →

Weaknesses

CWE-20NVD-CWE-noinfo

Affected Products

Kubernetes
oss-project·USaka k8s
Kubernetes ingress-nginxOn-prem
Cloud & SaaS / container-orchestration
ingress-nginx
Cloud & SaaS
netapp
commercial·US
trident
Hardware Firmware

Exploitability

1 exploit source identified

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

View exploit details
Workaround Available
Is your org exposed to CVE-2021-25742?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

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

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2021-25742 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows