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The ipmi_cipher_zero module is used to find IPMI 2.0-compatible systems that are vulnerable to an authentication bypass vulnerability through the use of IPMI cipher zero, which means no cipher is used at all.

Vulnerable Devices

This is an error in the IPMI 2.0 specification itself, so any device BMC fully implementing IPMI 2.0 will possibly have the vulnerable non-cipher enabled.

Verification Steps

Set RHOSTS to the target device or range and run:

msf > use auxiliary/scanner/ipmi/ipmi_cipher_zero
msf auxiliary(ipmi_cipher_zero) > set RHOSTS 192.168.1.2
RHOSTS => 192.168.1.2
msf auxiliary(ipmi_cipher_zero) > run

[*] Sending IPMI requests to 192.168.1.2->192.168.1.2 (1 hosts)
[*] 192.168.1.2:623 - IPMI - NOT VULNERABLE: Rejected cipher zero with error code 17