AirSnort 0.2.7 Stack Corruption Denial Of Service

Type packetstorm
Reporter hyp3rlinx
Modified 2016-08-09T00:00:00


                                            `[+] Credits: Hyp3rlinx  
[+] Website:  
[+] Source:  
[+] ISR: ApparitionSec  
AirSnort v0.2.7  
AirSnort is a wireless LAN (WLAN) tool which cracks encryption keys on  
802.11b WEP networks. AirSnort operates  
by passively monitoring transmissions, computing the encryption key when  
enough packets have been gathered.  
Vulnerability Type:  
Stack Corruption DOS  
Vulnerability Details:  
When open / load a corrupt 'crackfile' with bunch of  
'AAAAAAAAAAAAAAAAAAAAAAAAAA's... airsnort crashes and stack is corrupted.  
Under File / Load "Crack" File... open corrupt crackfile with bunch of 'A'  
chars then BOOM...  
Tested successfully on Linux OS.  
GDB reg dump  
Program received signal SIGSEGV, Segmentation fault.  
0xb72780e5 in __mempcpy_ia32 () from /lib/  
(gdb) info r  
eax 0x4141413b 1094795579  
ecx 0x3e3 995  
edx 0x829e9d8 136964568  
ebx 0xb73c1000 -1220800512  
esp 0xbfffe1dc 0xbfffe1dc  
ebp 0x0 0x0  
esi 0xb67cf00a -1233326070  
edi 0x0 0  
eip 0xb72780e5 0xb72780e5 <__mempcpy_ia32+21>  
eflags 0x210203 [ CF IF RF ID ]  
cs 0x73 115  
ss 0x7b 123  
ds 0x7b 123  
es 0x7b 123  
fs 0x0 0  
gs 0x33 51  
[+] Disclaimer  
The information contained within this advisory is supplied "as-is" with no  
warranties or guarantees of fitness of use or otherwise.  
Permission is hereby granted for the redistribution of this advisory,  
provided that it is not altered except by reformatting it, and  
that due credit is given. Permission is explicitly given for insertion in  
vulnerability databases and similar, provided that due credit  
is given to the author. The author is not responsible for any misuse of the  
information contained herein and accepts no responsibility  
for any damage caused by the use or misuse of this information. The author  
prohibits any malicious use of security related information  
or exploits by the author or elsewhere.