9

CVE-2018-20321: suse rancher Exposure of Resource to Wrong Sphere

CVSS: 9.0v2.0HighModified
AliasesGHSA-9qq2-xhmc-h9qrGO-2022-0644
Published 10-04-2019Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-20321 is a high (CVSS 9.0) Exposure of Resource to Wrong Sphere vulnerability in suse rancher. EPSS estimates a 1.77% chance of exploitation in the next 30 days, higher than 77.7% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.0/10
010
High · v2.0 (NVD)
EPSS score
1.77%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 10-04-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 2 sources · 3 versions

EPSS trend

Probability

1.77%

Chance of exploitation in the next 30 days

Percentile

78%

Versus all other CVEs

30-day change

0.00 pp

From 1.77% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.77%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Github.com/rancher1 product
  • rancher≥ 2.0.0, < 2.1.6 | ≥ 2.0.0+incompatible, < 2.1.6+incompatible
Suse1 product

2 vendors · 2 products

References

8 links