Upstream 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.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having important severity.
| CVSS detail | National Vulnerability Database |
|---|---|
| Base Score | 6.5 |
| Vector | AV:N/AC:L/Au:S/C:P/I:P/A:P |
| Access Vector | Network |
| Access Complexity | Low |
| Authentication | Single |
| Confidentiality Impact | Partial |
| Integrity Impact | Partial |
| Availability Impact | Partial |
| CVSS detail | National Vulnerability Database | SUSE |
|---|---|---|
| Base Score | 8.8 | 8.8 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Privileges Required | Low | Low |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | High | High |
| Integrity Impact | High | High |
| Availability Impact | High | High |
| CVSSv3 Version | 3.1 | 3.1 |
SUSE Security Advisories:
- GHSA-pvxj-25m6-7vqr, published Fri Jul 23 16:55:24 CEST 2021
- RANCHER-CVE-2021-31999, published Thu Jul 15 09:21:00 CEST 2021
SUSE Timeline for this CVE
CVE page created: Wed Jun 9 01:40:35 2021CVE page last modified: Mon Oct 6 19:30:22 2025