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Full Discussion: GDB - how to find interesting information?
Top Forums Programming GDB - how to find interesting information? Post 302464995 by type8code0 on Thursday 21st of October 2010 11:31:02 AM
Old 10-21-2010
Thanks shamrock for your prompt reply. You can find the challenge at the box below. The objective is to find the username & password. I've manage to find both username & password using strings command but I wanted to learn gdb as well.

Quote:
level1@blackbox:~$ ls -las
total 1184
4 drwxr-x--- 2 level1 level1 4096 Jul 9 2009 .
4 drwxr-xr-x 16 root root 4096 Dec 20 2009 ..
0 lrwxrwxrwx 1 root root 9 Jun 17 2009 .bash_history -> /dev/null
4 -rw-r--r-- 1 level1 level1 567 Dec 29 2007 .bash_profile
4 -rw-r--r-- 1 level1 level1 1834 Jan 28 2008 .bashrc
1168 -rws--xr-x 1 level2 level2 1189337 Jan 12 2008 login2
Quote:
level1@blackbox:~$ file login2
login2: setuid ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for GNU/Linux 2.4.1, statically linked, for GNU/Linux 2.4.1, not stripped
Quote:
level1@blackbox:~$ ./login2
Username:
Password:
Invalid username or password
Quote:
level1@blackbox:~$ gdb ./login2
GNU gdb 6.4.90-debian
Copyright (C) 2006 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i486-linux-gnu"...Using host libthread_db library "/lib/tls/libthread_db.so.1".
Access to the box
Quote:
ssh -l level1 blackbox.smashthestack.org -p 2225
The password is level1.
 

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LEARN ABOUT DEBIAN

svn::web::blame

SVN::Web::Blame(3pm)					User Contributed Perl Documentation				      SVN::Web::Blame(3pm)

NAME

       SVN::Web::Blame - SVN::Web action to show blame/annotation information

SYNOPSIS

       In config.yaml

	 actions:
	   ...
	   blame:
	     class: SVN::Web::Blame
	     action_menu:
	       show:
		 - file
	       link_text: (view blame)
	   ...

DESCRIPTION

       Shows a specific revision of a file in the Subversion repository, with blame/annotation information.

OPTIONS

       rev     The revision of the file to show.  Defaults to the repository's youngest revision.

	       If this is not an interesting revision for this file, the repository history is searched to find the youngest interesting revision
	       for this file that is less than "rev".

TEMPLATE VARIABLES

       at_head A boolean value, indicating whether the user is currently viewing the HEAD of the file in the repository.

       context Always "file".

       rev     The revision that has been returned.  This is not necessarily the same as the "rev" option passed to the action.  If the "rev"
	       passed to the action is not interesting (i.e., there were no changes to the file at that revision) then the file's history is
	       searched backwards to find the next oldest interesting revision.

       youngest_rev
	       The youngest interesting revision of the file.

       mimetype
	       The file's MIME type, extracted from the file's "svn:mime-type" property.  If this is not set then "text/plain" is used.

       blame_details
	       An array of hashes.  Each entry in the array corresponds to a line from the file.  Each hash contains the following keys:

	       line_no
		   The line number (starting with 0) in the file.

	       revision
		   The revision in which this line was last changed.

	       author
		   The author of the revision that changed this line

	       date
		   The date on which the line was changed, formatted according to "Time and date formatting" in SVN::Web.

	       line
		   The contents of this line.

EXCEPTIONS

       None.

COPYRIGHT

       Copyright 2007 by Nik Clayton "<nik@FreeBSD.org>".

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

       See <http://www.perl.com/perl/misc/Artistic.html>

perl v5.14.2							    2012-06-11						      SVN::Web::Blame(3pm)
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