CVE-2021-25320 - CVE House
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Status published Critical CVE-2021-25320

Rancher: Cloud credentials can be used through proxy API by users without access

Vulnerability Description

A Improper Access Control vulnerability in Rancher, allows users in the cluster to make request to cloud providers by creating requests with the cloud-credential ID. Rancher in this case would attach the requested credentials without further checks This issue affects: Rancher versions prior to 2.5.9; Rancher versions prior to 2.4.16.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from Rancher

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CVE-2021-31999
Rancher: Privilege escalation vulnerability via malicious Connection header
High 8.8
CVE-2021-25318
rancher: API group not properly specified when creating Kubernetes RBAC resources
High 8.8

Affected Vendor

Affected Software

Rancher
Vulnerable Versions:
Rancher

Timeline

Official Publish: July 15th, 2021
Last Modified: September 16th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Weaknesses (CWE)

CWE-284

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1078 Valid Accounts
Persistence
T1213 Data from Information Repositories
Collection
T1565.002 Stored Data Manipulation
Impact