CVE-2021-36775— Deleting PRTBs associated to a group doesn't cause deletion of corresponding RoleBindings
Quick assessment
Affected
SUSE Rancher
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Rancher Labs Rancher是美国Rancher Labs公司的一套开源的企业级容器管理平台。 Rancher Labs Rancher 2.4.18之前版本、2.5.12之前版本和2.6.3之前版本存在安全漏洞，攻击者利用该漏洞可以保留本应被撤销的权限。
Possible ATT&CK Techniques 2 AI
T1068 · Exploitation for Privilege Escalation T1078 · Valid Accounts
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I. Basic Information for CVE-2021-36775
Vulnerability Information
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Vulnerability Title
Deleting PRTBs associated to a group doesn't cause deletion of corresponding RoleBindings
Source: CVE Program / CVE List V5
Vulnerability Description
a Improper Access Control vulnerability in SUSE Rancher allows users to keep privileges that should have been revoked. This issue affects: SUSE Rancher Rancher versions prior to 2.4.18; Rancher versions prior to 2.5.12; Rancher versions prior to 2.6.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Rancher Labs Rancher 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rancher Labs Rancher是美国Rancher Labs公司的一套开源的企业级容器管理平台。 Rancher Labs Rancher 2.4.18之前版本、2.5.12之前版本和2.6.3之前版本存在安全漏洞，攻击者利用该漏洞可以保留本应被撤销的权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2021-36775
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-36775 (1)
-
https://bugzilla.suse.com/show_bug.cgi?id=1189120 x_refsource_CONFIRM
Same Patch Batch · SUSE · 2022-04-01 · 3 CVEs total
| CVE-2021-36776 | 8.8 HIGH | Steve API proxy impersonation |
| CVE-2022-21947 | 8.3 HIGH | rancher desktop: Dashboard API is network accessible |
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V. Comments for CVE-2021-36775
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