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CVE-2021-31999

Rancher: Privilege escalation vulnerability via malicious Connection header

Published: Jul 15, 2021Updated: Nov 21, 2024 Sources: CVE List NVD GHSA BDUCWE-807
8.8HIGH
NVD MITRE
EPSS Score
1.1%
Top 39.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-807

Affected Products

Rancher
commercial·US
RancherOn-prem
Cloud & SaaS / container-orchestration
SUSE Linux Enterprise Server 15On-prem
Cloud & SaaS / container-orchestration
Go
package-ecosystem
github.com/rancher/rancher
OSS Libraries
Rancher Labs
commercialaka rke, rke2, rancher
RancherMixed
Cloud & SaaS / container-orchestration
and 1 more affected products View all →

Exploitability

Official Patch Available
Scannable·OpenVAS
Is your org exposed to CVE-2021-31999?We can run the check for you — a free external exposure review, no install. Check my exposure

References

https://bugzilla.suse.com/show_bug.cgi?id=1187084
bugzilla.suse.com
https://nvd.nist.gov/vuln/detail/CVE-2021-31999
nvd.nist.gov
https://github.com/rancher/rancher
github.com
and 2 more references View all →
News mentions
Could not load news mentions.

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