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Initial Sequence Numbers
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Cody Gould
Apr 15, 2002, 11:14:05 PM4/15/02
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Care All,
Is there any predictability to, or documentation of, how
OpenVMS calculates the ISN for TCP/IP packets? Back when
this was a problem for other OS, was OpenVMS historically
vulnerable?
93, 93/93,
Cody Gould
Bill Gunshannon
Apr 16, 2002, 9:02:48 AM4/16/02
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In article <e922ba8b.02041...@posting.google.com>,
cody...@yahoo.com.au (Cody Gould) writes:
|> Care All,
|>
|> Is there any predictability to, or documentation of, how
|> OpenVMS calculates the ISN for TCP/IP packets? Back when
|> this was a problem for other OS, was OpenVMS historically
|> vulnerable?
cody...@yahoo.com.au (Cody Gould) writes:
|> Care All,
|>
|> Is there any predictability to, or documentation of, how
|> OpenVMS calculates the ISN for TCP/IP packets? Back when
|> this was a problem for other OS, was OpenVMS historically
|> vulnerable?
Is this what your looking for??
From NMAP:
On an Alpha running 7.3 and Compaq's IP stack:
TCP Sequence Prediction: Class=random positive increments
Difficulty=358 (Medium)
On a VAX running 7.1 and Multinet:
TCP Sequence Prediction: Class=truly random
Difficulty=9999999 (Good luck!)
bill
--
Bill Gunshannon | de-moc-ra-cy (di mok' ra see) n. Three wolves
bi...@cs.scranton.edu | and a sheep voting on what's for dinner.
University of Scranton |
Scranton, Pennsylvania | #include <std.disclaimer.h>
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