CmRcAuth checks login credentials against the "Configuration Manager Remote Control" service (CmRcService.exe) that is used in MECM/SCCM deployments and by default running on TCP port 2701.
The Python ntlm-auth library utilizes Hashlib for performing the necessary steps for NTLMSSP authentication. Therefore it requires MD4, which in current versions of OpenSSL is disabled.
A workaround is to enable legacy ciphers in /etc/ssl/openssl.cnf, however this seem to have negative side effects on other services of the operating system.
A recommendation would be to enable legacy ciphers, execute the tool and disable legacy ciphers afterwards.
git clone https://github.com/bka-dev/CmRcAuth.git
cd CmRcAuth`
pip3 install -r requirements.txtCheck authentication against a single host:
CmRcAuth.py -u <USERNAME> -d <DOMAIN> -f <IP>
Check authentication against multiple hosts read from an input file:
CmRcAuth.py -u <USERNAME> -d <DOMAIN> -f <FILE>