i second Nigel's opinion.
this is not the forum to ask question rather this is the forum to discuss
solutions to the problem. one must try first then if something donot work then
this forum plays a good role.
pearl
Nigel Houghton <nigel@sourcefire.com> wrote: On 8/29/07 4:42 AM, "lokesh
sharma" wrote:
can you help me
to write rules regarding DHCP
The rule is
"detect all attempts to exploit this vulnerability. In particular, it should
detect attempts by any computer making DHCP requests where hte Hlen field has
an invalid value, and where the following byte-code sequence is found anywhere
in the Sname or File fields. The byte-code sequence should not be matched in
any other field of the request. The byte-code sequence (in hexadecimal) is:
01 48 23 87 AB 1F FA 2C 9A 00 00 00 00 21 FF FF
on detecction of such attack attempts, your rule should generate an alert with
the message:
"DHCP Service invalid input HLen attack detected".
thanx
This looks like a question taken straight from an education course of some
kind. This is not the place to have other people do your homework for you.
--
Nigel Houghton
Office Linebacker
SF VRT
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