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Notepad++ Plugin Notepad# 1.5 - Local Exploit
[ 0Day-ID-21610 ]
Full title
Notepad++ Plugin Notepad# 1.5 - Local Exploit
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Price: 10
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Category
Platform
Verified
Price
free
Risk
[Security Risk Critical
]Rel. releases
Usage info
1. Poc
With Notepad# plugin (1.5) and Explorer plugin (1.8.2) installed in Notepad
++ 6.3.2, open the html file in attachement, click Enter in the last
</script> tag, Npp will crash and calc.exe will open. Without Explorer
plugin, these still can be exploit. Explorer plugin makes this easier.
2. Root cause
NotepadSharp plugin has several stack buffer overflow bug.
In its PluginDefinition.cpp file, there are some char buffer whose length
are 9999. They are all defined on stack.
So if some strcpy/memcpy copy more than 9999 chars to these buffers, it
leads to a stack overflow.
With Notepad# plugin (1.5) and Explorer plugin (1.8.2) installed in Notepad
++ 6.3.2, open the html file in attachement, click Enter in the last
</script> tag, Npp will crash and calc.exe will open. Without Explorer
plugin, these still can be exploit. Explorer plugin makes this easier.
2. Root cause
NotepadSharp plugin has several stack buffer overflow bug.
In its PluginDefinition.cpp file, there are some char buffer whose length
are 9999. They are all defined on stack.
So if some strcpy/memcpy copy more than 9999 chars to these buffers, it
leads to a stack overflow.
Vendor
http://notepad-plus-plus.org/
Affected ver
Notepad ++ 6.3.2 with Notepad# plugin (1.5) and Explorer plugin
(1.8.2)
(1.8.2)
Tested on
Windows XP SP3 EN
Prooves Information
Proof imgs
Other Information
Abuses
0
Comments
0
Views
5 145
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free
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Verified by 0day Admin
Verified by 0day Admin
This material is checked by Administration and absolutely workable.
This material is checked by Administration and absolutely workable.
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