From: Gareth Bromley (gbromley@xxxxxxxxxxx)
Date: Fri Aug 30 2002 - 09:37:51 GMT-3
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Graham, John wrote:
| www.solarwinds.net/Tools/Cisco_Networking/Password_Decryptor/
No need to waste money on expensive toys.
See http://www.fromadia.com/newsread.php?newsid=158 for Perl
and C code examples.
This is the piece of Perl Code I use when I need to do do
this sort of thing.
#!/usr/bin/perl -w
# $Id: ios7decrypt.pl,v 1.1 1998/01/11 21:31:12 mesrik Exp $
#
# Credits for orginal code and description hobbit@avian.org,
# SPHiXe, .mudge et al. and for John Bashinski
# for Cisco IOS password encryption facts.
#
# Use for any malice or illegal purposes strictly prohibited!
#
@xlat = ( 0x64, 0x73, 0x66, 0x64, 0x3b, 0x6b, 0x66, 0x6f, 0x41,
0x2c, 0x2e, 0x69, 0x79, 0x65, 0x77, 0x72, 0x6b, 0x6c,
0x64, 0x4a, 0x4b, 0x44, 0x48, 0x53 , 0x55, 0x42 );
while (<>) {
~ if (/(password|md5)\s+7\s+([\da-f]+)/io) {
~ if (!(length($2) & 1)) {
~ $ep = $2; $dp = "";
~ ($s, $e) = ($2 =~ /^(..)(.+)/o);
~ for ($i = 0; $i < length($e); $i+=2) {
~ $dp .= sprintf "%c",hex(substr($e,$i,2))^$xlat[$s++];
~ }
~ s/$ep/$dp/;
~ }
~ }
~ print;
}
If you after enable secrets then I hear, but havent tested
yet John the Ripper is the tool.
Enjoy,
- --
- --Gareth Bromley
CCDP CCNP CSS1 CCIP Security CCSA CCSE NSA RHCE SCSA CISSP
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