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AirSnort 0.2.7 Stack Corruption Denial Of Service

AirSnort 0.2.7 Stack Corruption Denial Of Service
Posted Aug 9, 2016
Authored by hyp3rlinx | Site hyp3rlinx.altervista.org

AirSnort version 0.2.7 suffers from a stack corruption denial of service vulnerability.

tags | exploit, denial of service
MD5 | b42bce9c913c5feedee4fd8e96a9167f

AirSnort 0.2.7 Stack Corruption Denial Of Service

Change Mirror Download
[+] Credits: Hyp3rlinx

[+] Website: hyp3rlinx.altervista.org

[+] Source:
http://hyp3rlinx.altervista.org/advisories/AIRSNORT-STACK-CORRUPTION-DOS.txt

[+] ISR: ApparitionSec



Vendor:
==================================
sourceforge.net/projects/airsnort/


Product:
===============
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/libc.so.6
(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.

HYP3RLINX
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