Subject xxx Date 20-jan-92
de853b6f65d0a376dcf7ccb97fb30f0e280d57d17554c19871e812e3afa8fa1f
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===============================================================================
>> CERT-NL, 01-Mar-2000 <<
>> All CERT-NL information has been moved to http://cert.surfnet.nl. Links <<
>> to CERT-NL information contained in this advisory are therefore outdated. <<
>> <<
>> CERT-NL also has stopped the CERT-CC-Mirror service. Due to this the <<
>> links to the CERT-CC mirror are obsolete. Visit the CERT-CC site for the <<
>> complete CERT-CC advisory texts: http://www.cert.org <<
===============================================================================
===============================================================================
Security Advisory CERT-NL
===============================================================================
Author/Source : CERT-NL Index : S-92-01
Distribution : SURFnet Constituency Page : 1
Classification: External Version: final
Subject : xxx Date : 20-jan-92
===============================================================================
CERT-NL (SURFnet Computer Emergency Response Team) has received
information concerning a security problem in NeXTstep Configuration
CERT-NL wishes to thank CERT/CC for bringing to our attention this
vulnerability.
===========================================================================
CA-92:01 CERT Advisory
January 20, 1992
NeXTstep Configuration Vulnerability
- ---------------------------------------------------------------------------
The Computer Emergency Response Team/Coordination Center (CERT/CC)
has received information concerning a vulnerability in release 2 of
NeXTstep's NetInfo default configuration. This vulnerability will
be corrected in future versions of NeXTstep.
- ---------------------------------------------------------------------------
I. Description
By default, a NetInfo server process will provide information to
any machine that requests it.
II. Impact
Remote users can gain unauthorized access to the network's
administrative information such as the passwd file.
III. Solution
Ensure that the trusted_networks property of each NetInfo domain's
root NetInfo directory is set correctly, so that only those systems
which should be obtaining information from NetInfo are granted
access. The value for the trusted_networks property should be the
network numbers of the networks the server should trust.
Note that improperly setting trusted_networks can render your
network unusable.
Consult Chapter 16, "Security", of the "NeXT Network and System
Administration" manual for release 2 for details on setting the
trusted_networks property of the root NetInfo directory.
- ---------------------------------------------------------------------------
The CERT/CC wishes to thank NeXT Computer, Inc. for their cooperation in
documenting and publicizing this security vulnerability.
- ---------------------------------------------------------------------------
If you believe that your system has been compromised, contact CERT/CC via
telephone or e-mail.
Internet E-mail: cert@cert.sei.cmu.edu
Telephone: 412-268-7090 (24-hour hotline)
CERT/CC personnel answer 7:30a.m.-6:00p.m. EST(GMT-5)/EDT(GMT-4),
on call for emergencies during other hours.
Computer Emergency Response Team/Coordination Center (CERT/CC)
Software Engineering Institute
Carnegie Mellon University
Pittsburgh, PA 15213-3890
Past advisories and other information related to computer security are
available for anonymous ftp from the cert.sei.cmu.edu (192.88.209.5) system.
==============================================================================
CERT-NL is the Computer Emergency Response Team for SURFnet customers. SURFnet
is the Dutch network for educational, research and related institutes. CERT-NL
is a member of the Forum of Incident Response and Security Teams (FIRST).
All CERT-NL material is available under:
http://cert.surfnet.nl/
In case of computer or network security problems please contact your local
CERT/security-team or CERT-NL (if your institute is NOT a SURFnet customer
please address the appropriate (local) CERT/security-team).
CERT-NL is one/two hour(s) ahead of UTC (GMT) in winter/summer,
i.e. UTC+0100 in winter and UTC+0200 in summer (DST).
Email: cert-nl@surfnet.nl ATTENDED REGULARLY ALL DAYS
Phone: +31 302 305 305 BUSINESS HOURS ONLY
Fax: +31 302 305 329 BUSINESS HOURS ONLY
Snailmail: SURFnet bv
Attn. CERT-NL
P.O. Box 19035
NL - 3501 DA UTRECHT
The Netherlands
NOODGEVALLEN: 06 22 92 35 64 ALTIJD BEREIKBAAR
EMERGENCIES : +31 6 22 92 35 64 ATTENDED AT ALL TIMES
CERT-NL'S EMERGENCY PHONENUMBER IS ONLY TO BE USED IN CASE OF EMERGENCIES:
THE SURFNET HELPDESK OPERATING THE EMERGENCY NUMBER HAS A *FIXED*
PROCEDURE FOR DEALING WITH YOUR ALERT AND WILL IN REGULAR CASES RELAY IT
TO CERT-NL IN AN APPROPRIATE MANNER. CERT-NL WILL THEN CONTACT YOU.
===============================================================================
-----BEGIN PGP SIGNATURE-----
Version: PGP 6.5.1i
iQA/AwUBOL6V8jSYjBqwfc9jEQIlDACeJWRHm7AVPrY/FlNphSvi/4+rJ4cAnicd
+yzXdVHWgqbllDi3l3aQVBuW
=O7KZ
-----END PGP SIGNATURE-----