Vulnerability identifier: #VU54814
Vulnerability risk: High
CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-287
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
VMware ESXi
Operating systems & Components /
Operating system
Vendor: VMware, Inc
Description
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error in when processing authentication requests in SFCB (Small Footprint CIM Broker). A remote attacker can send specially crafted requests to port 5989/tcp, bypass SFCB authentication and gain unauthorized access to the system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
VMware ESXi: 6.5 - ESXi_7.0.1-0.0.16850804
External links
http://www.vmware.com/security/advisories/VMSA-2021-0014.html
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?
No. We are not aware of malware exploiting this vulnerability.