With both WannaCry and NotPetya using MS17-010 for propagation it is important to be able to detect servers which are vulnerable.
This vulnerability has been assigned CVE-ID CVE-2017-0143. The vulnerability is also often nicknamed EternalBlue.
This page explains how you can scan for it from a Windows machine using nmap.

Not everyone is vulnerable to the potential attack vector that researchers from INRIA, a French research institute, and Microsoft disclosed recently. In order to be vulnerable, the computer or server must support a class of deliberately weak export cipher suites. Support for these weak algorithms has remained in many implementations, however they are typically disabled by default. Nevertheless, the researchers discovered that several implementations incorrectly allow the message sequence of export ciphersuites to be used even if a non-export ciphersuite was nogotiated.

You may have heard of "Heartbleed", a flaw in OpenSSL that could allow the theft of data normally protected by SSL/TLS encryption.

It is possible to scan for the presence of this vulnerability using different methods.
This page explains how you can scan for it from a Windows machine using nmap.