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- Message-Id: <9307011957.AA18864@sc.tamu.edu>
- Date: Thu, 1 Jul 93 14:57:32 -0500
- From: David-Hess@sc.tamu.edu
- Subject: TAMU Security Package Update
- Sender: Firewalls-Owner@GreatCircle.COM
-
-
- Texas A&M Network Security Package Update
- 7/1/93
-
- Dave Safford
- Doug Schales
- Dave Hess
-
- This is an updated release of the security tools developed at the
- Texas A&M University Supercomputer Center. These tools are available
- for anonymous FTP from sc.tamu.edu:/pub/security/TAMU.
-
- ------------------------------------------------------------------------
- CHANGE SUMMARY (see respective README files for more information):
-
- 'tiger' - Version 2.1.1 - UNIX security checking tool
-
- An explain facility for giving more information on the output from
- tiger. Many new checks, bug fixes, all around improvements. Too
- numerous to go into. Briefly, checks mail aliases, cron jobs, inetd
- configuration, PATH variables, more checks on passwd and group files.
- Untested initial configuration files for AIX 3, IRIX 4, HPUX and
- UNICOS. Tested configurations for SunOS 4.1.1, 4.1.2, 4.1.3, 5.1 and
- 5.2, including signatures for latest security patches, and NeXTSTEP 3.0.
-
- 'netlog' - Version 1.02 - Network traffic logging tools
-
- Bug fixes, minor enhancements to functionality. New tool for gathering
- statistics on protocol and port usage.
-
- 'drawbridge' - Version 1.1 - IP bridging filter
-
- Bug fixes. Allow and reject clauses did not work properly and bridging
- was not working efficiently.
-
- 'check_TAMU' - TAMU Security distribution check script
-
- A new script is now available for checking this distribution for any signs
- of tampering. This is intended for anyone who obtains this distribution from
- a site other than sc.tamu.edu. The script is available from a mailserver at
- "drawbridge-server@sc.tamu.edu". See the section AVAILABILITY below for more
- info.
-
- ------------------------------------------------------------------------
- ORIGINAL DESCRIPTION:
-
- Last August, Texas A&M University UNIX computers came under extensive
- attack from a coordinated group of internet crackers. This package of
- security tools represents the results of over nine months of
- development and testing of the software we have been using to protect
- our estimated five thousand IP devices. This package includes three
- coordinated sets of tools: "drawbridge", an exceptionally powerful
- bridging filter package; "tiger", a set of convenient yet thorough
- machine checking programs; and "netlog", a set of intrusion detection
- network monitoring programs.
-
- KEY FEATURES:
-
- For full technical details on the products, see their individual README's,
- but here are some highlights:
-
- DRAWBRIDGE:
- - inexpensive (PC with two SMC/WD 8013 cards)
- - high level filter language and compiler
- - powerful filtering parameters
- - DES authenticated remote filter management
- - O(1) table lookup processing even with dense class B
- net filter specifications.
-
-
- TIGER:
- - checks key binaries against cryptographic
- checksums from original distribution files
- - checks for critical security patches
- - checks for known intrusion signatures
- - checks all critical configuration files
- - will run on most UNIX systems, and has tailored
- components for SunOS, Next, SVR4, Unicos.
-
- NETLOG:
- - efficiently logs all tcp/udp establishment attempts
- - powerful query tool for analyzing connection logs
- - "intelligent" intrusion detection program
-
- AVAILABILITY:
-
- This package is available via anonymous ftp in
-
-
- sc.tamu.edu: pub/security/TAMU
-
- Due to the sensitive nature of these tools, we recommend that you
- retrieve them from this location. If you do not get them from
- sc.tamu.edu we suggest that you use our check_TAMU script that uses
- cryptographic checksums to check the distribution for any signs of
- tampering. The script is available in the anonymous ftp directory above
- and from an e-mail server at:
-
- drawbridge-server@sc.tamu.edu
-
- Note that there are some distribution limitations, such as the
- inability to export outside the US the DES libraries used in
- drawbridge; see the respective tool README's for details of any
- restrictions. (Note that the DES libraries are NOT required to use
- drawbridge. They just enable secure remote management of drawbridge.)
-
- CONTACT:
-
- Comments and questions are most welcome. Please address them to:
-
- drawbridge@sc.tamu.edu
-
-
-