CVE-2021-34473-scanner

Scanner for CVE-2021-34473, ProxyShell, A Microsoft Exchange On-premise Vulnerability

To test machines one by one, use scanner-CVE-2021-34473.bat:

scanner-CVE-2021-34473.bat mail.exemple.fr

To test multiple machines at once, use mass-scanner and add ip/FQDN to check, one by line, in servers-to-check.txt:

mass-scanner-CVE-2021-34473.bat

Remediation depending on Exchange version:

Exchange 2019 CU10 Download 15.2.922.13 KB5004780 https://www.microsoft.com/en-us/download/details.aspx?id=103309

Exchange 2019 CU9 Download 15.2.858.15 KB5004780 https://www.microsoft.com/en-us/download/details.aspx?id=103308

Exchange 2016 CU21 Download 15.1.2308.14 KB5004779 https://www.microsoft.com/en-us/download/details.aspx?id=103310

Exchange 2016 CU20 Download 15.1.2242.12 KB5004779 https://www.microsoft.com/en-us/download/details.aspx?id=103310

Exchange 2013 CU23 Download 15.0.1497.23 KB5004778 https://www.microsoft.com/en-us/download/details.aspx?id=103312