CVE-2021-31999 Information

Description

A Reliance on Untrusted Inputs in a Security Decision vulnerability in Rancher allows users in the cluster to act as others users in the cluster by forging the \Impersonate-User\ or \Impersonate-Group\ headers. This issue affects: Rancher versions prior to 2.5.9. Rancher versions prior to 2.4.16.

CVSS Vector

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

Reference

https://bugzilla.suse.com/show_bug.cgi?id=1187084

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8