CVE-2021-36782— Rancher: Plaintext storage and exposure of credentials in Rancher API and cluster.management.cattle.io object
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I. Basic Information for CVE-2021-36782
Vulnerability Information
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Vulnerability Title
Rancher: Plaintext storage and exposure of credentials in Rancher API and cluster.management.cattle.io object
Source: NVD (National Vulnerability Database)
Vulnerability Description
A Cleartext Storage of Sensitive Information vulnerability in SUSE Rancher allows authenticated Cluster Owners, Cluster Members, Project Owners, Project Members and User Base to use the Kubernetes API to retrieve plaintext version of sensitive data. This issue affects: SUSE Rancher Rancher versions prior to 2.5.16; Rancher versions prior to 2.6.7.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
敏感数据的明文存储
Source: NVD (National Vulnerability Database)
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 for SUSE 2.5.0到2.5.15版本、2.6.0到2.6.6版本存在安全漏洞，该漏洞源于敏感信息明文存储，任何对 Kubernetes API 中的对象具有读取权限的人都可以检索这些敏感数据的明文版本。
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)
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Affected Products
II. Public POCs for CVE-2021-36782
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | A Terraform module to launch Rancher 2.6.6 for blog article about CVE-2021-36782 | https://github.com/fe-ax/tf-cve-2021-36782 | POC Details |
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- https://github.com/rancher/rancher/security/advisories/GHSA-g7j7-h4q8-8w2fx_refsource_CONFIRM
- https://bugzilla.suse.com/show_bug.cgi?id=1193988x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2021-36782
Same Patch Batch · SUSE · 2022-09-07 · 4 CVEs total
| CVE-2021-36783 | 9.9 CRITICAL | Rancher: Failure to properly sanitize credentials in cluster template answers |
| CVE-2022-31247 | 9.1 CRITICAL | Rancher: Downstream cluster privilege escalation through cluster and project role template |
| CVE-2022-31251 | 6.5 MEDIUM | slurm: %post for slurm-testsuite operates as root in user owned directory |
IV. Related Vulnerabilities
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Information Disclosure, Tampering, and Denial-of-Service Vul
V. Comments for CVE-2021-36782
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