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-
- CA-90:01
- CERT Advisory
- 29 January 1990
- Sun Sendmail Vulnerability
- -----------------------------------------------------------------------------
-
- The Computer Emergency Response Team Coordination Center (CERT/CC) has
- learned of, and has verified, break-ins on several Internet systems
- in which the intruders have exploited a vulnerability in the Sun
- sendmail program. This vulnerability exists in all versions of
- SunOS up to and including the current version, 4.0.3 on Sun 3, Sun 4,
- and Sun 386i systems (note that 4.0.2 is the most current version of
- SunOS on the 386i machines). That is, all current Sun systems.
-
- The vulnerability has previously been reported to Sun and a solution
- to this problem (Sun bug # 1028173) is available via a new version of
- sendmail supplied by Sun. The new sendmail is available directly from
- the Sun Answer Center (1-800-USA-4SUN). Sun 3 and Sun 4 sendmail
- binaries are also available via anonymous FTP from uunet.uu.net in the
- /sun-fixes directory.
-
- This incident underscores the need for system administrators to
- maintain an awareness of the steps their vendors are taking to
- improve the security aspects of their products, and to seriously
- consider upgrading system configurations when solutions to security
- problems are made available.
-
- Administrators of Sun systems are urged to contact Sun for the new
- version of the sendmail program. Administrators of machines other
- than Suns are urged to contact their vendors to verify that they are
- running the latest version of sendmail, since there may have been
- security related fixes to it in the past year.
-
- If you need further information on this problem, contact your Sun
- representative or CERT/CC. CERT/CC can be contacted by telephone at
- (412) 268-7090 (24 hours) or email to cert@cert.sei.cmu.edu (monitored
- daily).
-
- Our thanks to Matt Bishop and Wayne Cripps for their efforts in
- analyzing and investigating this problem and its solution.
-
- -----------------------------------------------------------------------------
- Kenneth R. van Wyk
- Computer Emergency Response Team (CERT)
- Software Engineering Institute
- Carnegie Mellon University
- Pittsburgh, PA 15213-3890
-
- Internet: cert@cert.sei.cmu.edu
- Telephone: 412-268-7090 24-hour hotline: CERT personnel answer
- 7:30a.m.-6:00p.m. EST, on call for
- emergencies other hours.
-
- Past advisories and other information are available for anonymous ftp
- from cert.sei.cmu.edu (192.88.209.5).
-
-