Rancher: Plaintext storage and exposure of credentials in Rancher API and cluster.management.cattle.io object
CVE-2021-36782

9.9CRITICAL

Key Information:

Vendor

Suse
Status
Rancher
Vendor
CVE Published:
7 September 2022

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 79%

What is CVE-2021-36782?

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.

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Deploy the Patch

Affected Version(s)

Rancher Rancher < 2.5.16

Rancher Rancher < 2.6.7

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

tf-cve-2021-36782
Created by fe-ax

References

https://bugzilla.suse.com/show_bug.cgi?id=1193988
x_refsource_CONFIRM
https://github.com/rancher/rancher/security/advisories/GH...
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EPSS Score

79% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.9
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Florian Struck (from Continum AG) and Marco Stuurman (from Shock Media B.V.)
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