10-18-2019
The first field in passwd is the username (login name).
It must start with a letter. A number like 320074 is illegal, many Unix tools cannot behave correctly.
u320074 would be a correct username.
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LEARN ABOUT DEBIAN
ngorca
NGORCA(1) User Manuals NGORCA(1)
NAME
ngorca - Password recovery tool for Oracle databases
SYNOPSIS
ngorca [ -f hashfile ] [ OPTIONS ]
DESCRIPTION
ngorca is a multithreaded password recovery tool using exhaustive key search for Oracle versions 7-11g Rel.2. Due to the weak hashing
algorithm and constantly improving hardware performance, passwords can be found in minutes, depending on their length.
OPTIONS
-f hashfile
To use ngorca a list of usernames and hashes is required, which has the format username:hash. The username has a maxiumum length of
64 characters and the hash is always a 16 byte hex value. If the 11g algorithm is used a 40 byte SHA1 plus 20 bytes salt must be
added. The hash values are calculated one after another. Example of hash file entry with old DES hash and SHA1 hash:
NETGARAGE:5D7F5FD88AE4C07F:EAC3EAC57FF0635AB298EB40CBDA1BB45DFC1B7F20464AA591C1613A2CB8
-l password length
The length of the password. If this option is not set, passwords with the length of 5-8 bytes are calculated.
-c charset
The charset of the password. 1 for numeric, 2 for alpha, 3 for alpha numeric and 4 for alpha numeric with special characters. The
default is alpha numeric.
-t thread number
The number of threads which should be used. It is recommended to take the number of cpu's which you want to involve in the calcula-
tion for the best result. Per default one thread is used.
-o logfile
A logfile could be specified. It contains the passwords which are found and some info messages. The default logfile name is
ngorca.log placed in the directory the binary runs in.
-v verbose level
Loglevel for the logfile and standard output 1-4 with 4 as the highest level which contains percent printouts. The default loglevel
is 1.
EXAMPLE
ngorca -f hashlist -c3 -l6 -t2 -v4
BUG REPORT
For bugreporting write a mail to ebrosius@netgarage.org or use the issues tracker on the project hosting site
http://code.google.com/p/ngoca
COPYRIGHT
ngorca is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the
Free Software Foundation, either version 3 of the License, or (at your option) any later version.
AUTHOR
Dennis Krzyzaniak <ebrosius@netgarage.org>
SEE ALSO
the project site http://netgarage.org
Linux October 2009 NGORCA(1)