Man-in-the-Middle (MitM) attack in NSX and VMware Cloud Foundation (NSX-T) - CVE-2020-3993
Published: October 20, 2020
Vulnerability identifier: #VU47752
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-3993
CWE-ID: CWE-300
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists in the way that allows a KVM host to download and install packages from NSX manager. A remote attacker with ability to perform MitM attack can compromise the communication between the host and NSX manager and trick the victim into installing a malicious update.
Successful exploitation of the vulnerability may allow an attacker to compromise the affected system.
Affected software
NSX
VMware Cloud Foundation (NSX-T)
VMware Cloud Foundation (NSX-T)
How to mitigate CVE-2020-3993
Install updates from vendor's website.
NSX - addressed in versions 2.5.2.2, 3.0.2
VMware Cloud Foundation (NSX-T) - addressed in versions 3.10.1.1, 4.1
VMware Cloud Foundation (NSX-T) - addressed in versions 3.10.1.1, 4.1