Wireshark-bugs: [Wireshark-bugs] [Bug 10916] NHRP dissector incorrect decode of authentication e
Date Index · Thread Index · Other Months · All Mailing Lists
Date Prev · Date Next · Thread Prev · Thread Next
From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Sat, 14 Feb 2015 07:49:35 +0000

Comment # 3 on bug 10916 from 
(In reply to Chris Maynard from comment #1)
> (In reply to Patrick from comment #0)
> > Build Information:
> > Version 1.6.7
> 
> This is a rather old version of Wireshark that is no longer supported.  You
> should consider upgrading, if possible.
> 
> > The NHRP dissector incorrectly decodes the cleartext password used in the
> > NHRP Authentication Extension - see the attached capture -
> > The first 4 bytes are decoded as an a Source Address when in fact they are
> > the first 4 bytes of the password, the second four bytes are displayed as
> > just data - when they should be displayed as a password.
> 
> Wireshark appears to be dissecting the extension properly according to
> section 5.3.4 NHRP Authentication Extension of RFC 2332
> (http://tools.ietf.org/html/rfc2332).
> 
> By the way, the data is not a password at all, but rather, "The data field
> contains the keyed hash calculated over the entire NHRP payload."

This must be implementation specific in this case CISCO as the password is in
clear-text "NHRPAUTH" - it's moot anyway as NHRP would be secured by IPSec
anyway.

You are receiving this mail because:
  • You are watching all bug changes.