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Re: Nmap NOT VULNERABLE to Windows DLL Hijacking Vulnerability

From: paul.szabo () sydney edu au
Date: Thu, 9 Sep 2010 09:44:36 +1000
Fyodor <fyodor () insecure org> wrote:


nmap <= 5.21 is vulnerable to Windows DLL Hijacking Vulnerability.


Nmap is not vulnerable.  DLL hijacking works because of an unfortunate
interaction between apps which register Windows file extensions and
the default Windows DLL search path used for those apps.  Nmap does
not, and never has, registered any Windows file extensions.  So it
isn't vulnerable to this issue.


The "easy demo" is with clicks, which needs registration of extensions.
The "real thing" is a DLL in the current directory. Unless you always
use "cd path/to/nmap; ./nmap" to start, you are vulnerable: most people
would set their %PATH% to include the right thing for easy nmap.

Cheers, Paul

Paul Szabo   psz () maths usyd edu au   http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics   University of Sydney    Australia

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