CVE-2018-20321
published 2019-04-10CVE-2018-20321: 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…
PriorityP354high8.8CVSS 3.0
AVNACLPRLUINSUCHIHAH
EPSS
1.80%
75.7th percentile
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
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| github.com | rancher_rancher | >= 2.0.0 < 2.1.6 | 2.1.6 |
| github.com | rancher_rancher | >= 2.0.0+incompatible < 2.1.6+incompatible | 2.1.6+incompatible |
| suse | rancher | 2.0.0 – 2.1.5 | — |
CVSS provenance
nvdv3.08.8HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.09.0CRITICALAV:N/AC:L/Au:S/C:C/I:C/A:C
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OSV
Access Control Bypass in github.com/rancher/rancher
osv·2024-08-21
CVE-2018-20321 Access Control Bypass in github.com/rancher/rancher
Access Control Bypass in github.com/rancher/rancher
Access Control Bypass in github.com/rancher/rancher
OSV
Access Control Bypass
osv·2021-06-23
CVE-2018-20321 [MEDIUM] Access Control Bypass
Access Control Bypass
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.
GHSA
Access Control Bypass
ghsa·2021-06-23
CVE-2018-20321 [MEDIUM] CWE-288 Access Control Bypass
Access Control Bypass
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://forums.rancher.com/c/announcementshttps://rancher.com/blog/2019/2019-01-29-explaining-security-vulnerabilities-addressed-in-rancher-v2-1-6-and-v2-0-11/https://forums.rancher.com/c/announcementshttps://rancher.com/blog/2019/2019-01-29-explaining-security-vulnerabilities-addressed-in-rancher-v2-1-6-and-v2-0-11/
2019-04-10
Published