On Friday 12 March 2010 14:34:45 Jan-Oliver Wagner wrote:
> On Freitag, 12. März 2010, Michael Meyer wrote:
> > *** Chandrashekhar B <bchan...@secpod.com> wrote:
> > > > On Friday 12 March 2010 10:06:42 Jan-Oliver Wagner wrote:
> > > > > * migrate ssl_ciphers to use GnuTLS
> > > > 
> > > > Is this the C check?  If so, I would prefer not to move to
> > > > GnuTLS.  GnuTLS is rather conservative in what ciphers it
> > > > supports and may therefore miss weak ciphers because it
> > > > doesn't support them rather than because the scanned service doesn't.
> > > 
> > > Yes, agree, let us invalidate this plugin and write in NASL.
> > 
> > But this means, do this check with GnuTLS because NASL is linked
> > against it. So this will not solve Tim's concern. Or am I mistaken?
> 
> Not necessarily if we wrap some tools with  a NASL NVT.
> 
> http://sourceforge.net/projects/sslscan/

SSLscan is written by a colleague of mine but I repeat, it and anything that 
relies on a particular library is sub optimal.  The current C solution using 
OpenSSL is less suboptimal (due to the choice of OpenSSL) but the change ought 
to be to move to a non-library based solution.  Switching to GNU/TLS would 
actually be a regression.  There are cipher suites that may not be negotiated 
by OpenSSL or GNU/TLS but which might be supported by an IIS web server.

Tim
-- 
Tim Brown
<mailto:t...@openvas.org>
<http://www.openvas.org/>

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