[ANN] Protect you Unix Shell Scripts!
From: Bungisoft, Inc. (nntp_at_bungisoft.com)
Date: 10/28/03
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Date: 27 Oct 2003 20:25:14 -0800
Shell scripts are very powerful tools for UNIX development. Due to the
fact
that they are interpreted, they are easy to develop, inspect, debug
and
document. But this convenience comes at high price - the threat of
intellectual
property theft.
In today's competitive environment, anyone can inspect and change your
elaborately crafted scripts. It is possible and easy for a competitor
to mimic
your work, if not copy outright, without your permission. Furthermore,
unskilled customers or employees may modify installed scripts creating
hard-to-find bugs, increasing your support costs. For companies that
use shell
scripts in commercial products, these annoying issues are becoming a
major
headache.
To address this problem we have created Shell Protector(tm).
Get get more information and purchase Shell Protector(tm) please go
to:
http://www.bungisoft.com/html/products/shellprotect/shellprotect.html
Shell Protector's(tm) main purpose is to protect your shell scripts
from
modification or inspection. You can use it if you wish to distribute
your
scripts but don't want them to be easily readable by other people.
Shell Protector(tm) itself is not a compiler such as cc. It rather
encodes and
encrypts a shell script, together with the appropriate shell. The
final result
is a stripped binary which behaves exactly like the original script.
Upon
execution, the compiled binary will decrypt and execute the code using
the
encoded shell.
The following is the most prominent features of the Shell
Protector(tm):
* Protects sources
Shell scripts can contain a considerably large amount of know-how
and
development time. In order to protect such a valuable resource you
should
distribute Shell Protector(tm) produced executables instead of
sources.
* Allows SUID and SGID scripts
Some systems may be configured in such a way as to ignore set user
id and
set group id bit when running shell scripts. Such a feature is
indeed very
useful at times. Although it may also create problems. To bypass
this
feature on per-use bases, some knowledgeable UNIX system
administrators
create little C programs, called wrappers, to go around this
limitation.
However, wrappers, if not well designed and implemented, can
expose your
system to some well known security vulnerabilities. Shell
Protector(tm) is
designed to reduce such risk to some degree, it also eliminates
the need for
programming know-how by system administrators.
You can thus think of Shell Protector as the universal shell
script wrapper.
* Allows switch user (su) scripts
This is one of the most interesting features of compiled shell
scripts:
The process can optionally gain real user id of executable owner,
not only
effective user id. Group set of executable owner is also set. The
same
effect can be obtained only by using su (switch user) command.
* Makes sure that script runs under correct shell
Shell versions may differ wildly from system to system. By
packaging shell
interpreter together with the executable Shell Protector(tm)
provides
extra level of platform independency for your scripts.
* Runs under the most popular Unix/Linux platforms
* Solaris/SunOS (SPARC)
* Linux
With these and other exciting features Bungisoft Shell Protector(tm)
is a sure winner for your next project!
Get get more information and purchase Shell Protector(tm) please go
to:
http://www.bungisoft.com/html/products/shellprotect/shellprotect.html
- Next message: Jules Dubois: "Re: ok to overwrite MBR?"
- Previous message: Ron House: "How to duplicate a computer?"
- Next in thread: Michael C.: "Re: [ANN] Protect you Unix Shell Scripts!"
- Reply: Michael C.: "Re: [ANN] Protect you Unix Shell Scripts!"
- Reply: Volker Birk: "Re: [ANN] Protect you Unix Shell Scripts!"
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
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