joswr1ght/asleap

Asleap - Cisco LEAP and Generic MS-CHAPv2 Dictionary Attack

asleap's Issues

How to install asleap on ubuntu 20.04?

Hello. I'm tried to install asleap on ubuntu, but i have a little problem. In compiling with makefile i have an error:
gcc -pipe -Wall -D_LINUX -D_OPENSSL_MD4 -g3 asleap.c -o asleap common.o utils.o sha1.o -lpcap -lxcrypt -lcrypto /usr/bin/ld: cannot find -lxcrypt collect2: error: ld returned 1 exit status make: *** [Makefile:32: asleap] Error 1
On all websites everybody tell to install libssl-dev, but in it is no library "lxcrypt". What I can to do?

Does not work in current Kali distribution

Hello, I'm not sure if it's the good place to report, but asleap cannot find the last 2 bytes of hash when installed from latest Kali. At least this could help future users.

This issue was initially reported in OpenSecurityResearch/hostapd-wpe#32 by @AdonisPro.

To reproduce:

• Download Kali (they have pre-built VMs)
• Run sudo apt-get update && sudo apt-get install asleap
• Try recovering the last 2 bytes of NT from a challenge/response

More details (for password abcd1234):

┌──(kali㉿kali)-[~]
└─$ asleap -C 53:7a:33:3a:a2:08:38:07 -R 95:e1:4a:5b:6c:0a:18:26:8e:18:7b:da:0b:30:c4:d8:af:d3:38:ad:c5:f3:86:ae
asleap 2.3 - actively recover LEAP/PPTP passwords. <[email protected]>
        Could not recover last 2 bytes of hash from the
        challenge/response.  Sorry it didn't work out.
                                                                                                                                                                                                                                            
┌──(kali㉿kali)-[~]
└─$ ldd /usr/bin/asleap
        linux-vdso.so.1 (0x00007ffcb6fce000)
        libpcap.so.0.8 => /lib/x86_64-linux-gnu/libpcap.so.0.8 (0x00007f9b1301d000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f9b12e54000)
        libdbus-1.so.3 => /lib/x86_64-linux-gnu/libdbus-1.so.3 (0x00007f9b12e00000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f9b1309a000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f9b12ddf000)
        libsystemd.so.0 => /lib/x86_64-linux-gnu/libsystemd.so.0 (0x00007f9b12d0f000)
        librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f9b12d04000)
        liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f9b12cda000)
        libzstd.so.1 => /lib/x86_64-linux-gnu/libzstd.so.1 (0x00007f9b12bff000)
        liblz4.so.1 => /lib/x86_64-linux-gnu/liblz4.so.1 (0x00007f9b12bdc000)
        libcap.so.2 => /lib/x86_64-linux-gnu/libcap.so.2 (0x00007f9b12bd1000)
        libgcrypt.so.20 => /lib/x86_64-linux-gnu/libgcrypt.so.20 (0x00007f9b12a96000)
        libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 (0x00007f9b12a6c000)

┌──(kali㉿kali)-[~]
└─$ dpkg --status asleap
Package: asleap
Status: install ok installed
Priority: optional
Section: net
Installed-Size: 230
Maintainer: Kali Developers <[email protected]>
Architecture: amd64
Version: 2.3~git20201128.254acab-0kali1
Depends: libc6 (>= 2.14), libpcap0.8 (>= 0.9.8)
Description: A tool for exploiting Cisco LEAP networks
 Demonstrates a serious deficiency in proprietary Cisco LEAP networks.
Homepage: https://www.willhackforsushi.com/

I see it's version 2.3 (254acab) but I'm surprised libxcrypt is not reported by ldd nor dpkg 🤔

@joswr1ght can I let you report this to Kali if you think it's not an issue with asleap itself?

How to install: sudo apt-get install asleap

Because we don't know if there is any dependencies to install or not or to go about it other ways.
Author should've been more accurate in my opinion.

Unable to compile

Due to setkey and encrypt being remove, gcc is unable to compile. I tried this night night to fix this and its too blunt for me to recode the thing. Found out theyre using EVP encryption right now however i tried to change encrypt to crypt and recompile it with -lcrypt seems wokring but the setkey has not alternative to it. hope you can still fix it.

I am having error during the MAKE

/asleap/utils.c:182: undefined reference to `encrypt'
collect2: error: ld returned 1 exit status
make: *** [Makefile:34: genkeys] Error 1

NOTE: I am using Ubuntu 20.04

How do I install it on Ubuntu?

undefined reference to `setkey'

eli@probook ~/asleap (git)-[master] % make
cc -pipe -Wall -D_LINUX -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -I../../.. -D_OPENSSL_MD4 -g3 -ggdb -g   -c -o sha1.o sha1.c
cc -pipe -Wall -D_LINUX -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -I../../.. -D_OPENSSL_MD4 -g3 -ggdb -g   -c -o common.o common.c
cc -pipe -Wall -D_LINUX -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -I../../.. -D_OPENSSL_MD4 -g3 -ggdb -g   -c -o utils.o utils.c
utils.c: In function ‘DesEncrypt’:
utils.c:179:2: warning: implicit declaration of function ‘setkey’; did you mean ‘socket’? [-Wimplicit-function-declaration]
  setkey((char *)crypt_key);
  ^~~~~~
  socket
utils.c:182:2: warning: implicit declaration of function ‘encrypt’; did you mean ‘crypt’? [-Wimplicit-function-declaration]
  encrypt((char *)des_input, 0);
  ^~~~~~~
  crypt
cc -pipe -Wall -D_LINUX -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -I../../.. -D_OPENSSL_MD4 -g3 -ggdb -g asleap.c -o asleap common.o utils.o sha1.o -lpcap -lcrypt -lcrypto
asleap.c: In function ‘main’:
asleap.c:1398:6: warning: variable ‘findleaptimeout’ set but not used [-Wunused-but-set-variable]
  int findleaptimeout = 5;
      ^~~~~~~~~~~~~~~
/usr/bin/ld: utils.o: in function `DesEncrypt':
/home/eli/asleap/utils.c:179: undefined reference to `setkey'
/usr/bin/ld: /home/eli/asleap/utils.c:182: undefined reference to `encrypt'
collect2: error: ld returned 1 exit status
make: *** [Makefile:31: asleap] Error 1