Title : Foxit Reader suffers from Division By Zero
Version : 5.4.3.0920
Date : 2012-09-28
Vendor : http://www.foxitsoftware.com/
Impact : Med/High
Contact : coolkaveh [at] rocketmail.com
Twitter : @coolkaveh
tested : XP SP3
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Bug :
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division by zero vulnerability during the handling of the pdf files.
that will trigger a denial of service condition
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(b34.f24): Integer divide-by-zero - code c0000094 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
eax=ffffffff
ebx=00000000
ecx=00000000
edx=00000000
esi=00000000
edi=00000000
eip=00558c8c
esp=0012f928
ebp=00000000
iopl=0 nv up ei pl zr na pe nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010246
*** ERROR: Module load completed but symbols could not be loaded for FoxitReader_Lib_Full.exe
FoxitReader_Lib_Full+0x158c8c:
00558c8c f7f7 div eax,edi
0:000> r;!exploitable -v;q
eax=ffffffff
ebx=00000000
ecx=00000000
edx=00000000
esi=00000000
edi=00000000
eip=00558c8c
esp=0012f928
ebp=00000000 iopl=0 nv up ei pl zr na pe nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010246
FoxitReader_Lib_Full+0x158c8c:
00558c8c f7f7 div eax,edi
HostMachine\HostUser
Executing Processor Architecture is x86
Debuggee is in User Mode
Debuggee is a live user mode debugging session on the local machine
Event Type: Exception
*** ERROR: Symbol file could not be found. Defaulted to export symbols for ntdll.dll -
Exception Faulting Address: 0x558c8c
First Chance Exception Type: STATUS_INTEGER_DIVIDE_BY_ZERO (0xC0000094)
Faulting Instruction:00558c8c div eax,edi
Basic Block:
00558c8c div eax,edi
Tainted Input Operands: ax, dx, eax, edi
00558c8e cmp dword ptr [esp+3ch],eax
Tainted Input Operands: eax
00558c92 jae foxitreader_lib_full+0x158f06 (00558f06)
Tainted Input Operands: CarryFlag
Exception Hash (Major/Minor): 0x6461647c.0x64616453
Stack Trace:
FoxitReader_Lib_Full+0x158c8c
Instruction Address: 0x0000000000558c8c
Description: Integer Divide By Zero
Short Description: DivideByZero
Recommended Bug Title: Integer Divide By Zero starting at FoxitReader_Lib_Full+0x0000000000158c8c (Hash=0x6461647c.0x64616453)
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Proof of concept .pdf included: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/21645.pdf
