TI-2021-07557 Aliases CVE-2021-25318 GHSA-f9xf-jq4j-vqw4

rancher: API group not properly specified when creating Kubernetes RBAC resources

MEDIUM 40CWE-732Published 2021-07-15 · Updated 2024-09-16

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

A Incorrect Permission Assignment for Critical Resource vulnerability in Rancher allows users in the cluster to modify resources they should not have access to. This issue affects: Rancher versions prior to 2.5.9 ; Rancher versions prior to 2.4.16.

Why it matters now

EPSS 0.01051 64th percentileScored 2026-11-07

Fix Fixed Rancher (Rancher): 2.5.9, 2.4.16github.com/rancher/rancher (Go): 2.4.16, 2.5.9

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Rancher	Rancher	Rancher to before 2.5.9	2.5.9	Patch available	CNA
Rancher	Rancher	Rancher to before 2.4.16	2.4.16	Patch available	CNA
—	github.com/rancher/rancher (Go)	2.0.0 to before 2.4.16	2.4.16	Patch available	GHSA-f9xf-jq4j-vqw4
—	github.com/rancher/rancher (Go)	2.5.0 to before 2.5.9	2.5.9	Patch available	GHSA-f9xf-jq4j-vqw4

Rancher VendorRancher Affected Rancher to before 2.5.9 Fixed in 2.5.9 Patch available CNA
Rancher VendorRancher Affected Rancher to before 2.4.16 Fixed in 2.4.16 Patch available CNA
github.com/rancher/rancher (Go) Vendor— Affected 2.0.0 to before 2.4.16 Fixed in 2.4.16 Patch available GHSA-f9xf-jq4j-vqw4
github.com/rancher/rancher (Go) Vendor— Affected 2.5.0 to before 2.5.9 Fixed in 2.5.9 Patch available GHSA-f9xf-jq4j-vqw4

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:rancher:rancher::::::::	before 2.4.16; 2.5.0 to before 2.5.9	Vulnerable	Rancher

cpe:2.3:a:rancher:rancher:*:*:*:*:*:*:*:* Versions before 2.4.16; 2.5.0 to before 2.5.9 Vulnerable ·Rancher

Remediation

Fix · CNA Rancher (Rancher) Fixed in 2.5.9
Fix · CNA Rancher (Rancher) Fixed in 2.4.16
Fix · GHSA-f9xf-jq4j-vqw4 github.com/rancher/rancher (Go) Fixed in 2.4.16 Advisory →
Fix · GHSA-f9xf-jq4j-vqw4 github.com/rancher/rancher (Go) Fixed in 2.5.9 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2021-07-15
Rancher 2.5.9
3 records Highest priority Priority MEDIUM 3 MEDIUM
Other records, highest priority first
- TI-2021-07559 Rancher: Cloud credentials can be used through proxy API by users without accessPriority MEDIUM 44
- TI-2021-11979 Rancher: Privilege escalation vulnerability via malicious Connection headerPriority MEDIUM 40
Show all 3 records →
Release · 2021-07-15
Rancher 2.4.16
2 records Highest priority Priority MEDIUM 2 MEDIUM
Other records, highest priority first
- TI-2021-07559 Rancher: Cloud credentials can be used through proxy API by users without accessPriority MEDIUM 44
Show all 2 records →

Timeline

2026-10-02 Threatist record created from CVE-2021-25318
2026-10-03 Alias added: GHSA-f9xf-jq4j-vqw4

References

Advisory 2

Other 3

TI-2021-07559 Rancher: Cloud credentials can be used through proxy API by users without access CVSS 3.1CRITICAL 9.9
TI-2021-14897 Steve API proxy impersonation CVSS 3.1HIGH 8.8
TI-2021-14896 Deleting PRTBs associated to a group doesn't cause deletion of corresponding RoleBindings CVSS 3.1HIGH 8.8
TI-2021-11979 Rancher: Privilege escalation vulnerability via malicious Connection header CVSS 3.1HIGH 8.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences