Executive Summary

Informations
Name CVE-2018-20321 First vendor Publication 2019-04-10
Vendor Cve Last vendor Modification 2022-04-13

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 8.8
Base Score 8.8 Environmental Score 8.8
impact SubScore 5.9 Temporal Score 8.8
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:S/C:C/I:C/A:C)
Cvss Base Score 9 Attack Range Network
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20321

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-668 Exposure of Resource to Wrong Sphere

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 78

Sources (Detail)

Source Url
CONFIRM https://forums.rancher.com/c/announcements
https://rancher.com/blog/2019/2019-01-29-explaining-security-vulnerabilities-...

Alert History

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Date Informations
2022-04-14 09:23:20
  • Multiple Updates
2022-04-14 05:23:22
  • Multiple Updates
2021-05-05 01:30:34
  • Multiple Updates
2021-05-04 13:13:31
  • Multiple Updates
2021-04-22 02:28:05
  • Multiple Updates
2021-03-27 01:26:09
  • Multiple Updates
2020-05-23 02:15:09
  • Multiple Updates
2020-05-23 01:12:35
  • Multiple Updates
2019-10-03 09:21:06
  • Multiple Updates
2019-04-11 21:19:26
  • Multiple Updates
2019-04-10 21:19:22
  • First insertion