nmap

SMB Vulnerability MS17-010 NSE – Script to detect MS17-010 (WannaCry Ransomware)

Posted on by jeff

This is taken from the nmap seclist page.  A script for nmap has been written that should allow you to scan your network to determine if its vulnerable.  It may not be perfect but I am sure it will help someone out there.

http://seclists.org/nmap-dev/2017/q2/79
Hey list,

I need some help testing the script smb-vuln-ms17-010. I tested it on a vulnerable win7 machine and it works as 
expected but I suspect there might be some issues with newer Windows versions and certain smb configurations (v2 
authentication protocols with signing enabled).

Don't forget to send me packet captures if you run into servers that are incorrectly marked as not vulnerable. 

Cheers!

smb-vuln-ms17-010: https://github.com/cldrn/nmap-nse-scripts/blob/master/scripts/smb-vuln-ms17-010.nse 
description = [[
Attempts to detect if a Microsoft SMBv1 server is vulnerable to a remote code
 execution vulnerability (ms2017-010).

The script connects to the $IPC tree, executes a transaction on FID 0 and
 checks if the error "STATUS_INSUFF_SERVER_RESOURCES" is returned to
 determine if the target is not patched against CVE2017-010.

Tested on a vulnerable Windows 7. We might have some issues with v2 protocols with
 signing enabled.

References:
* https://technet.microsoft.com/en-us/library/security/ms17-010.aspx
* https://blogs.technet.microsoft.com/msrc/2017/05/12/customer-guidance-for-wannacrypt-attacks/
* https://msdn.microsoft.com/en-us/library/ee441489.aspx
* https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/smb/smb_ms17_010.rb 
]]



Paulino Calderon Pale || @calderpwn on Twitter || http://www.calderonpale.com