High severityNVD Advisory· Published Jul 15, 2021· Updated Sep 17, 2024
Rancher: Privilege escalation vulnerability via malicious Connection header
CVE-2021-31999
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/rancher/rancherGo | >= 2.0.0, < 2.4.16 | 2.4.16 |
github.com/rancher/rancherGo | >= 2.5.0, < 2.5.9 | 2.5.9 |
Affected products
3- Rancher/SUSE Linux Enterprise Server 15v5Range: Rancher
Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-pvxj-25m6-7vqrghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-31999ghsaADVISORY
- bugzilla.suse.com/show_bug.cgighsax_refsource_CONFIRMWEB
- pkg.go.dev/vuln/GO-2024-2778ghsaWEB
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