Visit our newest sister site!
Hundreds of free aircraft flight manuals
Civilian • Historical • Military • Declassified • FREE!


TUCoPS :: Linux :: Debian :: ciacj031.txt

Debian Linux Super Package Buffer Overflow




-----BEGIN PGP SIGNED MESSAGE-----

             __________________________________________________________

                       The U.S. Department of Energy
                    Computer Incident Advisory Capability
                           ___  __ __    _     ___
                          /       |     /_\   /
                          \___  __|__  /   \  \___
             __________________________________________________________

                             INFORMATION BULLETIN

                  Debian Linux "Super" package Buffer Overflow

February 16, 1999 19:00 GMT                                       Number J-031
______________________________________________________________________________
PROBLEM:       Internet Security Systems (ISS) X-Force has discovered a
               vulnerability in the system administration utility, "Super".
PLATFORM:      All versions of Super distributed with Debian Linux. Can be
               installed and configured for many Unix variants.
DAMAGE:        If exploited, this vulnerability could lead to a root
               compromise.
SOLUTION:      Until Super version 3.11.7 is available, apply the fix listed
               below.
______________________________________________________________________________
VULNERABILITY  Risk is high since this vulnerability could lead to a root
ASSESSMENT:    compromise.
______________________________________________________________________________

[  Start ISS Security Advisory  ]

ISS Security Advisory
February 15, 1999

Buffer Overflow in "Super" package in Debian Linux


Synopsis:

Internet Security Systems (ISS) X-Force has discovered a vulnerability in
the system administration utility, "Super".  Super is used by
administrators to allow certain users to execute commands with root
privileges.  The vulnerability is distributed with Debian Linux.  It may
allow local attackers to compromise root access.  Super is a GNU
copylefted package that is distributed with recent Debian Linux
distributions, but it can be installed and configured for many Unix
variants.


Affected versions:

ISS X-Force has determined that version 3.9.6 through version 3.11.6 are
vulnerable.  All versions of Super distributed with Debian Linux are
vulnerable.  Execute the following command to determine version
information:

# /usr/bin/super -V


Fix Information:

The main distribution point for the Super package:
ftp.ucolick.org:/pub/users/will/

Mirror:
ftp.onshore.com:/pub/mirror/software/super

super-3.11.7.tar.gz     full source code for 3.11.7
super-3.11.6.patch1     patches overflow in 3.11.6
super-3.11.6-3.11.7     patch to change 3.11.6 to 3.11.7

Please refer to these locations for fixes which will be included in
Super version 3.11.7.

Description:

Super is a utility that allows authorized users to execute commands with
root privileges.  It is intended to be an alternate to setuid scripts,
which are inherently dangerous.  A buffer overflow exists in Super that
may allow attackers to take advantage of its setuid configuration to gain
root access.


Recommended Action:

Version 3.11.7 should be installed as soon as it is available.
Administrators should take care to disable setuid root utilities that are
not used by regular users.  To disable Super permanently, execute the
following command as root to disable the setuid bit:

# chmod 755 /usr/bin/super

__________

Copyright (c) 1999 by Internet Security Systems, Inc.

Permission is hereby granted for the redistribution of this alert
electronically.  It is not to be edited in any way without express
consent of X-Force.  If you wish to reprint the whole or any part of this
alert in any other medium excluding electronic medium, please e-mail
xforce@iss.net for permission.

Disclaimer:

The information within this paper may change without notice. Use of this
information constitutes acceptance for use in an AS IS condition. There
are NO warranties with regard to this information. In no event shall the
author be liable for any damages whatsoever arising out of or in
connection with the use or spread of this information. Any use of this
information is at the user's own risk.

X-Force PGP Key available at: http://www.iss.net/xforce/sensitive.html,
as well as on MIT's PGP key server and PGP.com's key server.

X-Force Vulnerability and Threat Database: http://www.iss.net/xforce

Please send suggestions, updates, and comments to: X-Force
<xforce@iss.net> of Internet Security Systems, Inc.


[  End ISS  Security Advisory  ]
______________________________________________________________________________

CIAC wishes to acknowledge the contributions of Internet Security Systems for
the information contained in this bulletin.
______________________________________________________________________________


CIAC, the Computer Incident Advisory Capability, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
National Laboratory in Livermore, California. CIAC is also a founding
member of FIRST, the Forum of Incident Response and Security Teams, a
global organization established to foster cooperation and coordination
among computer security teams worldwide.

CIAC services are available to DOE, DOE contractors, and the NIH. CIAC
can be contacted at:
    Voice:    +1 925-422-8193
    FAX:      +1 925-423-8002
    STU-III:  +1 925-423-2604
    E-mail:   ciac@llnl.gov

For emergencies and off-hour assistance, DOE, DOE contractor sites,
and the NIH may contact CIAC 24-hours a day. During off hours (5PM -
8AM PST), call the CIAC voice number 925-422-8193 and leave a message,
or call 800-759-7243 (800-SKY-PAGE) to send a Sky Page. CIAC has two
Sky Page PIN numbers, the primary PIN number, 8550070, is for the CIAC
duty person, and the secondary PIN number, 8550074 is for the CIAC
Project Leader.

Previous CIAC notices, anti-virus software, and other information are
available from the CIAC Computer Security Archive.

   World Wide Web:      http://www.ciac.org/
                        (or http://ciac.llnl.gov -- they're the same machine)
   Anonymous FTP:       ftp.ciac.org
                        (or ciac.llnl.gov -- they're the same machine)
   Modem access:        +1 (925) 423-4753 (28.8K baud)
                        +1 (925) 423-3331 (28.8K baud)

CIAC has several self-subscribing mailing lists for electronic
publications:
1. CIAC-BULLETIN for Advisories, highest priority - time critical
   information and Bulletins, important computer security information;
2. SPI-ANNOUNCE for official news about Security Profile Inspector
   (SPI) software updates, new features, distribution and
   availability;
3. SPI-NOTES, for discussion of problems and solutions regarding the
   use of SPI products.

Our mailing lists are managed by a public domain software package
called Majordomo, which ignores E-mail header subject lines. To
subscribe (add yourself) to one of our mailing lists, send the
following request as the E-mail message body, substituting
ciac-bulletin, spi-announce OR spi-notes for list-name:

E-mail to       ciac-listproc@llnl.gov or majordomo@tholia.llnl.gov:
        subscribe list-name
  e.g., subscribe ciac-bulletin

You will receive an acknowledgment email immediately with a confirmation
that you will need to mail back to the addresses above, as per the
instructions in the email.  This is a partial protection to make sure
you are really the one who asked to be signed up for the list in question.

If you include the word 'help' in the body of an email to the above address,
it will also send back an information file on how to subscribe/unsubscribe,
get past issues of CIAC bulletins via email, etc.

PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing
communities receive CIAC bulletins.  If you are not part of these
communities, please contact your agency's response team to report
incidents. Your agency's team will coordinate with CIAC. The Forum of
Incident Response and Security Teams (FIRST) is a world-wide
organization. A list of FIRST member organizations and their
constituencies can be obtained via WWW at http://www.first.org/.

This document was prepared as an account of work sponsored by an
agency of the United States Government. Neither the United States
Government nor the University of California nor any of their
employees, makes any warranty, express or implied, or assumes any
legal liability or responsibility for the accuracy, completeness, or
usefulness of any information, apparatus, product, or process
disclosed, or represents that its use would not infringe privately
owned rights. Reference herein to any specific commercial products,
process, or service by trade name, trademark, manufacturer, or
otherwise, does not necessarily constitute or imply its endorsement,
recommendation or favoring by the United States Government or the
University of California. The views and opinions of authors expressed
herein do not necessarily state or reflect those of the United States
Government or the University of California, and shall not be used for
advertising or product endorsement purposes.

LAST 10 CIAC BULLETINS ISSUED (Previous bulletins available from CIAC)

J-021: Sun Solaris Vulnerabilities ( dtmail, passwd )
J-022: HP-UX Vulnerabilities ( snmp, sendmail, remote network command )
J-023: Cisco IOS Syslog Denial-of-Service Vulnerability
J-024: Windows NT Remote Explorer
J-025: W97M.Footprint Macro Virus Detected
J-026: HP-UX rpc.pcnfsd Vulnerability
J-027: Digital Unix  Vulnerabilities ( at , inc  )
J-028: Sun Solaris Vulnerabilities (sdtcm_convert, man/catman, CDE)
J-029: Buffer Overflows in Various FTP Servers
J-030: Microsoft BackOffice Vulnerability





-----BEGIN PGP SIGNATURE-----
Version: 4.0 Business Edition

iQCVAwUBNsntYrnzJzdsy3QZAQFpmwP/VdWn2slPA3Xiuz32Ffu7/KXA1jNpzui3
U4OdE90gcD1LokgUXCjOKwzqenDeupCSl+AFvGZ+MArN21uzrAyvU6/HchBptFHu
u4g8VCOO15wCdzVl+TF3LL8W3CHW4NKBbdvHydmnxqYfKbR90SWTZh6a5qBuDM9K
tYQGqH0Wgdc=
=rqBs
-----END PGP SIGNATURE-----



TUCoPS is optimized to look best in Firefox® on a widescreen monitor (1440x900 or better).
Site design & layout copyright © 1986-2014 AOH