CERT Advisory VB-94:01.sco
CERT Advisory
cert-advisory at cert.org
Mon Dec 5 18:38:13 UTC 1994
CERT* Vendor-Initiated Bulletin VB-94:01
December 5, 1994
Topic: Patches for at(C), login(M), prwarn(C), sadc(ADM), pt_chmod
Source: The Santa Cruz Operation (SCO)
To aid in the wide distribution of essential security information, the CERT
Coordination Center is forwarding the following information from The Santa
Cruz Operation. SCO urges you to act on this information as soon as
possible. SCO contact information is included in the forwarded text below;
please contact them if you have any questions or need further information.
========================FORWARDED TEXT STARTS HERE============================
===========================================================================
SCO Advisory 94:001
November 30th, 1994
Patches for at(C), login(M), prwarn(C), sadc(ADM), pt_chmod
---------------------------------------------------------------------------
The Santa Cruz Operation has been informed of the following problems present
in our software.
I. Description
The programs at(C), login(M), prwarn(C) sadc(ADM), and pt_chmod
may each allow unauthorized root access to the system.
There are four unrelated issues present, one for each program listed
above.
II. Impact
Any user with an account on the system may obtain root access using
any one of the programs listed.
III. Releases
These problems exist on the following releases of SCO Products:
SCO Unix System V/386 Release 3.2 Versions 4.2, 4.1, and 4.0
SCO Open Desktop Lite Release 3.0
SCO Open Desktop Release 3.0 and 2.0
SCO Open Server Network System Release 3.0
SCO Open Server Enterprise System Release 3.0
IV. Solution
SCO is providing the following (S)ystem (S)ecurity (E)nhancements, SSEs,
to address these problems. These are preliminary patches which SCO
feels addresses the issues at hand, but these patches have not been
fully tested and integrated and hence cannot officially be supported.
Official patches should be available in the near future via a
(S)upport (L)evel (S)upplement. (SLS). The README file mentioned below
will be updated when an official Supplement is available.
Binary Patch
------ ------
at(C) sse001
login(M) sse002
prwarn(C) sse003
sadc(ADM) sse004
pt_chmod sse005
These are available at the following sites:
Anonymous ftp: ftp.sco.COM:/SSE
UUCP downloading, and SOS access: sosco (USA), scolon (Europe),
in the directory /usr/spool/uucppublic/SSE. Note that access to these
Supplements at scolon may not be available until December 2nd, 1994.
The filename conventions are as follows:
ssexxx.tar.Z - compressed tar file of supplement
ssexxx.ltr.Z - compressed cover letter for supplement
xxx indicates the number of the supplement, i.e. sse001.tar.Z.
See the README file in the directories listed above for checksum
information. Connection information is available at the end of this
document.
Please note that these Supplements are not generally available from
SCO on diskette media.
If you have further questions, contact your support provider. If you
need to contact SCO, please send electronic mail to support at sco.COM, or
contact SCO as follows.
USA/Canada: 6am-5pm Pacific Standard Time (PST)
-----------
1-800-347-4381 (voice)
1-408-427-5443 (fax)
Pacific Rim, Asia, and Latin American customers: 6am-5pm Pacific
------------------------------------------------ Standard Time
(PST)
1-408-425-4726 (voice)
1-408-427-5443 (fax)
Europe, Middle East, Africa: 9am-5:30pm British Standard Time (BST)
----------------------------
+44 (0)923 816344 (voice)
+44 (0)923 817781 (fax)
Downloading Information
-----------------------
ftp to ftp.sco.com
Login name: ftp
Password: your email address
For anonymous UUCP connection:
------------------------------
For USA, Canada, Pacific Rim, Asia and Latin America customers:
Machine name: sosco
Login name: uusls (fourth character is the letter "l")
No password
List of modems available for UUCP transfer from sosco.sco.com:
Standard V.32, (300-9600bps) 4@ 408-425-3502
Hayes V Series 9600 2@ 408-427-4470
Telebit Trailblazer 408-429-1786
For Europe/Middle East/Africa customers there is a system located at
SCO EMEA (London):
Machine name: scolon
Login name: uusls
Password: bbsuucp
List of modems available for UUCP transfer from scolon.sco.com:
Dowty Trailblazer +44 (0)923 210911
For SCO Online Support (SOS) BBS download:
------------------------------------------
For those customers that have accounts on SOS these files can be
downloaded interactively via X, Y, Z MODEM or Kermit. Follow the
menus selections under "Toolchest" from the main SOS menu.
List of modems available for interactive transfer from sosco.sco.com:
First four are Standard V.32 (300-9600bps) 408-426-9495
Last three are Hayes 2400 compatible
Telebit Trailblazer 408-426-9525
For ftp via World Wide Web:
---------------------------
URL to open: ftp://www.sco.com
These problems, except for pt_chmod, were reported to the Santa Cruz
Operation by the "[8LGM] Security Team", 8lgm at bagpuss.demon.co.uk.
-------------------------- Here is the ftp.sco.com:/SSE/README file -----
Welcome to the System Security Enhancement (SSE) Area
----------------------------------------------------
The System Security Enhancement directory, (SSE), is here to
provide timely fixes to problems with system security. Binaries
acquired from this directory are to be considered preliminary fixes
only, and have not been fully tested or integrated. As such, these
patches are not officially supported. They are provided as a timely
response to security concerns that have been brought to the
attention of The Santa Cruz Operation.
When final, approved patches are available, usually by a Support Level
Supplement, the README files below will be modified to indicate the
existence of the finalized version of the supplement.
SCO reserves the right to change the contents of these supplements at any
time.
The format of the Supplements found here are as follows:
ssexxx.tar.Z - a compressed tar file
ssexxx.ltr.Z - cover letter, release information,
and installation instructions
where xxx indicates the number of the supplement.
Please note that the ssexxx.tar.Z files are *not* diskette images.
After downloading an SSE, uncompress both the tar file and the cover
letter. For example, if you were trying to install SSE001, after
downloading sse001.tar.Z and ssexxx.ltr.Z, you would uncompress
both files:
# uncompress ssexxx.tar.Z
# uncompress ssexxx.ltr.Z
After uncompressing both files, you should then follow the instructions
provided in the sse001.ltr file for installation instructions.
These Supplements should be available in the following locations:
site directory method
---- --------- ------
ftp.sco.COM: /SSE Internet anonymous ftp
sosco: /usr/spool/uucppublic/SSE UUCP download, SOS
scolon: /usr/spool/uucppublic/SSE UUCP download, SOS
List of New System Security Enhancements (last updated 11/29/94)
----------------------------------------------------------------
New on 11/29/94:
sse001: at(C) Enhancement
sse002: login(M) Enhancement
sse003: prwarn(C) Enhancement
see004: sadc(ADM) Enhancement
sse005: pt_chmod Enhancement
sse006: passwd(C) Enhancement
CONNECTION INFORMATION
----------------------
For anonymous ftp connection:
-----------------------------
ftp to sosco.sco.com
Login name: ftp
Password: your email address
ftp to ftp.sco.com
Login name: ftp
Password: your email address
(Please note that the ftp server that is running on these machines expects your
Domain Name to be publically known to the net. Please contact
your internet provider for more information on registering your Domain
Name)
ftp to ftp.uu.net (NOTE: areas are located in the ./sco-archive directory)
Login name: ftp
Password: your email address
For anonymous UUCP connection:
------------------------------
For USA, Canada, Pacific Rim, Asia and Latin America customers:
Machine name: sosco
Login name: uusls (fourth character is the letter "l")
No password
List of modems available for UUCP transfer from sosco.sco.com:
Standard V.32, (300-9600bps) 4@ 408-425-3502
Hayes V Series 9600 2@ 408-427-4470
Telebit Trailblazer 408-429-1786
For Europe/Middle East/Africa customers there is a system located at
SCO EMEA (London):
Machine name: scolon
Login name: uusls
Password: bbsuucp
List of modems available for UUCP transfer from scolon.sco.com:
Dowty Trailblazer +44 (0)923 210911
For SCO Online Support (SOS) BBS download:
------------------------------------------
For those customers that have accounts on SOS these files can be
downloaded interactively via X, Y, Z MODEM or Kermit. Follow the
menus selections under "Toolchest" from the main SOS menu.
List of modems available for interactive transfer from sosco.sco.com:
First four are Standard V.32 (300-9600bps) 408-426-9495
Last three are Hayes 2400 compatible
Telebit Trailblazer 408-426-9525
For ftp via World Wide Web:
---------------------------
URL to open: ftp://www.sco.com
------------------------------------------------------------------------------
List of available Security Enhancement (SSE) files:
Numbers in parentheses are checksums of the files, generated using the "sum"
utility with the -r option. Example: sum -r sse001.tar.Z
NOTE: These files are for downloading only. They CANNOT be obtained
from SCO on diskette.
NOTE: Please see the ".ltr" files for a list of SCO platforms that
these Enhancements apply to.
Size in bytes
File name (checksum) Description
sse001.ltr.Z 2254 (62340) at(C) Enhancement
sse001.tar.Z 28177 (01162)
sse002.ltr.Z 2122 (64430) login(M) Enhancement
sse002.tar.Z 60535 (24459)
sse003.ltr.Z 2190 (39557) prwarn(C) Enhancement
sse003.tar.Z 20742 (53203)
sse004.ltr.Z 2491 (13484) sadc(ADM) Enhancement
sse004.tar.Z 11936 (27375)
sse005.ltr.Z 1025 (25407) pt_chmod Enhancement
sse005.tar.Z 2414 (06033)
sse006.ltr.Z 985 (36851) passwd(C) Enhancement
sse006.tar.Z 86185 (19264)
=========================FORWARDED TEXT ENDS HERE=============================
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Telephone: 412-268-7090 (24-hour hotline)
CERT personnel answer 8:30 a.m.-5:00 p.m. EST(GMT-5)/EDT(GMT-4),
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Software Engineering Institute
Carnegie Mellon University
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*CERT is a service mark of Carnegie Mellon University.
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