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Date: Mon, 9 Jul 2012 10:57:51 +0400
From: Solar Designer <>
Subject: WPA-PSK valid()

Lukas - can you implement the valid() enhancements proposed below, then
re-test, please?  Thanks.

On Fri, Jun 29, 2012 at 12:24:47AM +0400, Solar Designer wrote:
> Lukas -
> On Fri, Jun 29, 2012 at 12:12:08AM +0400, Solar Designer wrote:
> > The attached patch makes the WPA-PSK format (CPU) work on big-endian
> BTW, perhaps eapol_size and keyver should be validated in valid() and in
> hccap2john.c.
> Do these come from an external tool?  Or even directly from network
> traffic?  In the latter case, we might even have a remote arbitrary code
> execution vulnerability here. %-)
> Also, is it specified (where?) that these are in little-endian form, or
> does this vary between builds of whatever tool creates the file?
> Alexander

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