POC CVE-2021-21972

by | Feb 24, 2021 | Blog, Red Team

POC CVE-2021-21972

by | Feb 24, 2021 | Blog, Red Team

Proof of Concept Exploit for vCenter CVE-2021-21972

Link to Github Repo: CVE-2021-21972

Tested only on Unix VCSA targets.

Write the file supplied in the –file argument to the location specified in the –path argument. The file will be written in the context of the vsphere-ui user. If the target is vulnerable, but the exploit fails, it is likely that the vsphere-ui user does not have permissions to write to the specified path.

If writing the vsphere-ui user’s SSH authorized_keys, when SSH’ing with the keys it was observed in some cases that the vsphere-ui user’s password had expired and forced you to update it (which you cannot because no password is set).

Research credit to: http://noahblog.360.cn/vcenter-6-5-7-0-rce-lou-dong-fen-xi/

How can NodeZero help you?

Let our experts walk you through a demonstration of NodeZero, so you can see how to put it to work for your company.