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Re: ssh-hostkey - b64 decode null value
From: David Fifield <david () bamsoftware com>
Date: Sun, 28 Jul 2013 18:26:22 -0700

On Sun, Jul 28, 2013 at 09:03:24PM +0200, Florian Pelgrim wrote:
Hey Nmap devs,

Nmap throws me an exception when trying to resolv an ssh fingerprint of
a broken SSH daemon.

Debug output:
[...]
NSE: ssh-hostkey against 193.226.98.***:88 threw an error!
/usr/share/nmap/nselib/base64.lua:138: attempt to get length of local
'bdata' (a nil value)
stack traceback:
      /usr/share/nmap/nselib/base64.lua:138: in function 'enc'
      /usr/share/nmap/scripts/ssh-hostkey.nse:154: in function
</usr/share/nmap/scripts/ssh-hostkey.nse:122>
      (...tail calls...)
[...]

If you need further information let me know. :)

It will help if you can send the output of --script-trace while scanning
this target.

David Fifield
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