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[cobalt-users] CERT Advisory CA-2002-35 Vulnerability in RaQ 4
- Subject: [cobalt-users] CERT Advisory CA-2002-35 Vulnerability in RaQ 4
- From: Vicente Sanchez <visan@xxxxxxxxxxxx>
- Date: Thu Dec 12 00:40:01 2002
- List-id: Mailing list for users to share thoughts on Sun Cobalt products. <cobalt-users.list.cobalt.com>
hi there,
this is for all raq4 users.
best regards and electronics greetings from madrid, spain
--
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Vicente Sanchez | MERCURIO CAT SL.
Dirección Técnica | Hi-End Internet Solutions Provider
e-mail: visan@xxxxxxxxxxxx | P.O.Box 28011-E28080-Madrid-Spain
URL: http://www.mercurio.net | Fax:+34 916 324 413-Phone:+34 916 324 646
Subject:CERT Advisory CA-2002-35 Vulnerability in RaQ 4 Servers
Date: Wed, 11 Dec 2002 17:32:16 -0500
From: CERT Advisory <cert-advisory@xxxxxxxx>
Organization:CERT(R) Coordination Center - +1 412-268-7090
To:cert-advisory@xxxxxxxx
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CERT Advisory CA-2002-35 Vulnerability in RaQ 4 Servers
Original release date: December 11, 2002
Last revised: --
Source: CERT/CC
A complete revision history can be found at the end of this file.
Systems Affected
* Sun Cobalt RaQ 4 Server Appliances with the Security
Hardening
Package installed
Overview
A remotely exploitable vulnerability has been discovered in Sun
Cobalt
RaQ 4 Server Appliances running Sun's Security Hardening
Package
(SHP). Exploitation of this vulnerability may allow remote
attackers
to execute arbitrary code with superuser privileges.
I. Description
Cobalt RaQ 4 is a Sun Server Appliance. For background information
on
Cobalt RaQ 4, please see the COBALT RaQ 4 User Manual. Sun provides
a
Security Hardening Package (SHP) for Cobalt RaQ 4. Although the SHP
is
not installed by default, many users choose to install it on their
RaQ
4 servers. For background information on the SHP, please see the
SHP
RaQ 4 User Guide.
A vulnerability in the SHP may allow a remote attacker to
execute
arbitrary code on a Cobalt RaQ 4 Server Appliance. The
vulnerability
occurs in a cgi script that does not properly filter
input.
Specifically, overflow.cgi does not adequately filter input
destined
for the email variable. Because of this flaw, an attacker can use
a
POST request to fill the email variable with arbitrary commands.
The
attacker can then call overflow.cgi, which will allow the command
the
attacker filled the email variable with to be executed with
superuser
privileges.
An exploit is publicly available and may be circulating.
Further information about this vulnerability may be found in
VU#810921
in the CERT/CC Vulnerability Notes Database.
II. Impact
A remote attacker may be able to execute arbitrary code on a
Cobalt
RaQ 4 Server Appliance with the SHP installed.
III. Solution
Apply a patch from your vendor
Appendix A contains information provided by vendors for this
advisory.
As vendors report new information to the CERT/CC, we will update
this
section and note the changes in our revision history. If a
particular
vendor is not listed below, we have not received their
comments.
Please contact your vendor directly.
Workarounds
Block access to the Cobalt RaQ 4 administrative httpd
server
(typically ports 81/TCP and 444/TCP) at your network perimeter.
Note
that this will not protect vulnerable hosts within your
network
perimeter. It is important to understand your network
configuration
and service requirements before deciding what changes are
appropriate.
Caveats
The patch supplied by Sun removes the SHP completely. If
your
operation requires the use of the SHP, you may need to find a
suitable
alternative.
Appendix A. - Vendor Information
Sun Microsystems
Sun confirms that a remote root exploit does affect the
Sun/Cobalt
RaQ4 platform if the SHP (Security Hardening Patch) patch
was
installed.
Sun has released a Sun Alert which describes how to remove the
SHP
patch:
http://sunsolve.Sun.COM/pub-cgi/retrieve.pl?doc=fsalert/49377
The removal patch is available from:
http://ftp.cobalt.sun.com/pub/packages/raq4/eng/RaQ4-en-Security-2.0.1-SHP_REM.pkg
Appendix B. - References
1. CERT/CC Vulnerability Note: VU#810921 -
http://www.kb.cert.org/vuls/id/810921
2. Sun SHP RaQ 4 User Guide -
http://www.sun.com/hardware/serverappliances/pdfs/support/RaQ_4_SHP_UG.pdf
3. COBALT RaQ 4 User Manual -
http://www.sun.com/hardware/serverappliances/pdfs/manuals/manual.raq4.pdf
_________________________________________________________________
grazer@xxxxxxxxxxxxxx publicly reported this vulnerability.
_________________________________________________________________
Author: Ian A. Finlay.
______________________________________________________________________
This document is available from:
http://www.cert.org/advisories/CA-2002-35.html
______________________________________________________________________
CERT/CC Contact Information
Email: cert@xxxxxxxx
Phone: +1 412-268-7090 (24-hour hotline)
Fax: +1 412-268-6989
Postal address:
CERT Coordination Center
Software Engineering Institute
Carnegie Mellon University
Pittsburgh PA 15213-3890
U.S.A.
CERT/CC personnel answer the hotline 08:00-17:00 EST(GMT-5)
/
EDT(GMT-4) Monday through Friday; they are on call for
emergencies
during other hours, on U.S. holidays, and on weekends.
Using encryption
We strongly urge you to encrypt sensitive information sent by
email.
Our public PGP key is available from
http://www.cert.org/CERT_PGP.key
If you prefer to use DES, please call the CERT hotline for
more
information.
Getting security information
CERT publications and other security information are available
from
our web site
http://www.cert.org/
To subscribe to the CERT mailing list for advisories and
bulletins,
send email to majordomo@xxxxxxxxx Please include in the body of
your
message
subscribe cert-advisory
* "CERT" and "CERT Coordination Center" are registered in the
U.S.
Patent and Trademark Office.
______________________________________________________________________
NO WARRANTY
Any material furnished by Carnegie Mellon University and the
Software
Engineering Institute is furnished on an "as is" basis.
Carnegie
Mellon University makes no warranties of any kind, either expressed
or
implied as to any matter including, but not limited to, warranty
of
fitness for a particular purpose or merchantability, exclusivity
or
results obtained from use of the material. Carnegie Mellon
University
does not make any warranty of any kind with respect to freedom
from
patent, trademark, or copyright infringement.
_________________________________________________________________
Conditions for use, disclaimers, and sponsorship information
Copyright 2002 Carnegie Mellon University.
Revision History
December 11, 2002: Initial release
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