CVE-2021-31999

Rancher: Privilege escalation vulnerability via malicious Connection header

State: Published
Severity: 8.8 High
Published: Jul 15, 2021
Updated: Sep 17, 2024
Reserved: May 3, 2021

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.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	suse

Weaknesses

CWE-807 Reliance on Untrusted Inputs in a Security Decision

Affected Products

Product	Versions
RancherRancher	Rancher to before 2.5.9Affected
SUSE Linux Enterprise Server 15Rancher	Rancher to before 2.4.16Affected

References

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

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