Vulnerability identifier: #VU56806

Vulnerability risk: Medium

CVSSv3.1: 7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:H/RL:O/RC:C]

CVE-ID: CVE-2021-22017

CWE-ID: CWE-285

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
vCenter Server
Server applications / Virtualization software

Vendor: VMware, Inc

Description

The vulnerability allows a remote attacker to gain unauthorized access to the system.

The vulnerability exist due to improper implementation of URI normalization in rhttpproxy. A remote non-authenticate attacker can request a specially crafted URL, bypass rhttpproxy and access internal endpoints.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

vCenter Server: 6.5 - 6.7.0d

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External links
http://www.vmware.com/security/advisories/VMSA-2021-0020.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.