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Patch for hostapd and wpa_supplicant to attempt to exploit heartbleed on EAP-PEAP/TLS/TTLS connections
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( .-'''-..' \ _______ .' - \ <<<<<<<< );__ ,,,_) \ <<<<<<<<< ) ;C / \ <<<<<< (.-'-. )====_)_=======> wpa_supplicant-cupid <<<<< \ ''''''' ) && hostapd-cupid ; <<< .......__/ .-''' ( ) .-' ;. / / .-' . = . / _-''\_/ '. .' . / .-' ) ;\ '''. . / ; .'''' `. ' ; ( O -' .''' .' .' .-'''''` 'o-' ## Cupid 0.1 ## Author: Luis Grangeia ## firstname.lastname@example.org ## twitter.com/lgrangeia # INTRODUCTION Cupid is a pair of patches for hostapd-2.1 and wpa_supplicant-2.1 to exploit heartbleed on Wireless networks that use EAP Authentication methods based on TLS (specifically OpenSSL) Please see presentation slides for a simple introduction to cupid: http://www.slideshare.net/lgrangeia # COMPILATION Get wpa_supplicant-2.1 and/or hostapd-2.1, apply the respective patch and compile. I don't recommend doing a "make install" as you'll be replacing your systems binaries with non-functional copies (functional only for exploiting heartbleed). # USAGE Both patches come with a "heartbleed.conf" file that can be used to tweak behaviour. It must be present and placed on the same directory you're running the binary. Refer to the file for details. --> wpa_supplicant: Use the included test_wpasupplicant.conf and change the ssid to the network you're wanting to test heartbleed for. Fire up wireshark or tcpdump on the interface to check for TLS heartbeat requests/responses. I usually do: # airmon-ng start wlan0 and then monitor the whole thing on the mon0 interface (use filter 'EAP || SSL' for a better picture). fire up wpa_supplicant: ./wpa_supplicant -i wlan0 -dd -c ~/testconfs/test_wpasupplicant.conf Look at the output of wireshark to see if the network you're attacking is vulnerable. --> hostapd Use the included test_hostapd.conf. You may have to set up certificates and an empty eap_user file. I've included these for reference as well. Fire up wireshark as described above. Note that you need a wireless adapter supporting host AP mode. fire up hostapd: ./hostapd -d test_hostapd.conf Then try to connect to the "bleedingheart" network with your mobile device or laptop, and it will try to heartbleed it. You can put any login/password combination. To see if the patch works just install a vulnerable OpenSSL version and try to exploit your local copy of wpa_supplicant or a fresh install of hostapd. ### FUTURE WORK Please let me know if you find vulnerable devices and give me their version and if possible a packet dump of the actual attack. TODO: - Code is still very incomplete, just a PoC - Does not decrypt the heartbeat response if encrypted (not the case if pre-handshake) - Should output the heartbeat responses to a file - Test more devices/networks!