MEDIUM
An issue was discovered in Rancher 2 through 2.1.5
Published Apr 10, 2019
4.2
MEDIUMCVSS 3.1
EPSS 1.77%
Description
An issue was discovered in Rancher 2 through 2.1.5. Any project member with access to the default namespace can mount the netes-default service account in a pod, and then use that pod to execute administrative privileged commands against the k8s cluster. This could be mitigated by isolating the default namespace in a separate project, where only cluster admins can be given permissions to access. As of 2018-12-20, this bug affected ALL clusters created or imported by Rancher.
Affected products
Remediation
No remediation recorded yet.
References (7)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-1305 Advisory
- https://forums.rancher.com/c/announcements x_refsource_CONFIRMVendor Advisory
- https://github.com/advisories/GHSA-9qq2-xhmc-h9qr Advisory
- https://github.com/rancher/rancher/commit/6ea187fcc2309d5a7a14ed47de5688bf6573f448
- https://github.com/rancher/rancher/releases/tag/v2.1.6
- https://nvd.nist.gov/vuln/detail/CVE-2018-20321
- https://rancher.com/blog/2019/2019-01-29-explaining-security-vulnerabilities-addressed-in-rancher-v2-1-6-and-v2-0-11/ x_refsource_CONFIRMMitigationVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-1305 | Advisory | |
| https://forums.rancher.com/c/announcements | x_refsource_CONFIRMVendor Advisory | |
| https://github.com/advisories/GHSA-9qq2-xhmc-h9qr | Advisory | |
| https://github.com/rancher/rancher/commit/6ea187fcc2309d5a7a14ed47de5688bf6573f448 | ||
| https://github.com/rancher/rancher/releases/tag/v2.1.6 | ||
| https://nvd.nist.gov/vuln/detail/CVE-2018-20321 | ||
| https://rancher.com/blog/2019/2019-01-29-explaining-security-vulnerabilities-addressed-in-rancher-v2-1-6-and-v2-0-11/ | x_refsource_CONFIRMMitigationVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Apr 10, 2019
Updated Aug 5, 2024
Reserved Dec 20, 2018
Link CVE-2018-20321
CISA Vulnrichment
Updated n/a
ENISA EUVD
EUVD-2021-1305 GHSA-9QQ2-XHMC-H9QR Assigner mitre
Published Apr 10, 2019
Updated Aug 5, 2024
Exploited since n/a
Link EUVD-2021-1305