CVE-2021-31999

Rancher: Privilege escalation vulnerability via malicious Connection header

Published Jul 15, 2021 CVSS 3.1 · 8.8 High EPSS 1.1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-1271 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.
Github GHSA Github GHSA GHSA-pvxj-25m6-7vqr Rancher Privilege escalation vulnerability via malicious "Connection" header
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
suse
Published
Updated
Sep 17, 2024, 2:26 AM
Reserved
May 3, 2021, 12:00 AM
Status
Modified
Published
Jul 15, 2021, 9:15 AM
Modified
Jun 17, 2026, 3:52 AM