kn6869610/cve-2020-0796Scanner for CVE-2020-0796 (SMBGhost) that checks SMBv3 servers for compression capability and dialect 3.1.1 to identify RCE vulnerability.
Simple scanner for CVE-2020-0796 - SMBv3 RCE.
The scanner is for meant only for testing whether a server is vulnerable. It is not meant for research or development, hence the fixed payload.
It checks for SMB dialect 3.1.1 and compression capability through a negotiate request.
A network dump of the scanner running against a Windows 2019 Server (10.0.0.133) can be found under SMBGhost.pcap.
python3 CVE-2020-0796_Scan_Vul.py <IP>
You can disable compression to block unauthenticate attackers from exploiting the vulnerability against an SMBv3 Server with the PowerShell command below.
Set-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters" DisableCompression -Type DWORD -Value 1 -Force