[VulnWatch] Re: iDefense Security Advisory 10.09.07: Microsoft Windows Mail and Outlook Express NNTP Protocol Heap Overflow



iDefense Labs wrote:

<<...>>
V. WORKAROUND

Deleting the all sub-keys of the following registry keys will remove the
'news' and 'snews' protocol handlers:

HKEY_CLASSES_ROOT\news\shell
HKEY_CLASSES_ROOT\snews\shell

If you want to do a thorough job of such mitigation as a Q&D fix, you
may also need to nuke the

HKEY_CLASSES_ROOT\nntp\shell

entry.

I can't easily test the viability of exploiting this via an nntp:// URI
just now, but "nntp" is normally registered (at least with OE -- can
someone check for Windows Mail?) with exactly the same sub-keys and
values as the "news" and "snews" URI handlers...


Regards,

Nick FitzGerald



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