Foxit Reader除零拒绝服务漏洞

发布日期:2012-09-28
更新日期:2012-10-10

受影响系统:
Foxit Foxit Reader
描述:
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BUGTRAQ  ID: 55734

Foxit Reader是一款小型的PDF文档查看器和打印程序。

Foxit Reader 5.4.3.0920及其他版本处理PDF文档时存在拒绝服务漏洞,可允许远程攻击者使受影响应用崩溃。

<*来源:coolkaveh
  *>

测试方法:
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警 告

以下程序(方法)可能带有攻击性,仅供安全研究与教学之用。使用者风险自负!

Title            :  Foxit Reader suffers from Division By Zero
Version          :  5.4.3.0920
Date            :  2012-09-28
Vendor          : 
Impact          :  Med/High
Contact          :  coolkaveh [at] rocketmail.com
Twitter          :  @coolkaveh
tested          :  XP SP3
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Bug :
----
division by zero vulnerability during the handling of the pdf files.
that will trigger a denial of service condition

#####################################################################
(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)
#####################################################################

Proof of concept .pdf included:

建议:
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厂商补丁:

Foxit
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目前厂商还没有提供补丁或者升级程序,我们建议使用此软件的用户随时关注厂商的主页以获取最新版本:

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