fedcirc.98.02.txt
466151cdbb7394c47292bb371030be88d4ecd5f7f25f220a071d603856871be3
FA-98.02 IBM AIX "routed" daemon Vulnerability
To: FEDCIRC-Community:;@cert.org
Subject: FA-98.02 IBM AIX "routed" daemon Vulnerability
From: fedcirc@fedcirc.gov
Date: Mon, 12 Jan 1998 15:00:50 -0500 (EST)
Reply-To: fedcirc@fedcirc.gov
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A D V I S O R Y
FA-98.02
******************************************************************************
Topic: IBM AIX "routed" daemon Vulnerability
Source: CIAC
Creation Date: January 8, 1998
Last Updated:
To aid in the wide distribution of essential security information,
FedCIRC is forwarding the following information from CIAC bulletin I-022
FedCIRC urges you to act on this information as soon as possible.
If you have any questions, please contact FedCIRC:
Telephone: +1 888 282 0870
Email: fedcirc@fedcirc.gov
=======================FORWARDED TEXT STARTS HERE============================
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__________________________________________________________
The U.S. Department of Energy
Computer Incident Advisory Capability
___ __ __ _ ___
/ | /_\ /
\___ __|__ / \ \___
__________________________________________________________
INFORMATION BULLETIN
IBM AIX "routed" daemon Vulnerability
January 8, 1998 22:00 GMT Number I-022
______________________________________________________________________________
PROBLEM: A vulnerability exists in "routed" daemon that allows accep-
tance of packets that cause arbitrary system files to be
created and/or modified.
PLATFORM: Only machines running the routed daemon are vulnerable.
IBM AIX(r) 3.2.x, 4.1.x, 4.2.x, 4.3.x
DAMAGE: By exploiting this vulnerability, remote users may gain access
to the system.
SOLUTION: A temporary fix is available from IBM. Contact information is
listed in Section III.
______________________________________________________________________________
VULNERABILITY An exploit script has been made publicly available.
ASSESSMENT:
______________________________________________________________________________
[ Start IBM Advisory ]
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EMERGENCY RESPONSE SERVICE
SECURITY VULNERABILITY ALERT
08 January 1998 20:30 GMT Number: ERS-SVA-E01-
1998:001.1
==============================================================================
VULNERABILITY SUMMARY
VULNERABILITY: The "routed" daemon allows remote users to modify system
files.
PLATFORMS: IBM AIX(r) 3.2.x, 4.1.x, 4.2.x, 4.3.x
SOLUTION: Apply the fixes listed below.
THREAT: Remote users can gain system access.
==============================================================================
DETAILED INFORMATION
I. Description
The "routed" daemon accepts packets that cause arbitrary system files to be
created and/or modified. Only machines running the routed daemon are
vulnerable.
An exploit script has been made publicly available.
II. Impact
Remote users can modify system files which can allow remote access to the
system.
III. Solutions
A. How to alleviate the problem
A temporary fix is available via anonymous ftp from:
ftp://testcase.software.ibm.com/aix/fromibm/security.routed.tar.Z
Filename sum md5
=================================================================
routed 59682 40 1aae6cf116ae84f8bee91b96736b7d23
Use the following steps (as root) to install the temporary fix:
1. Uncompress and extract the fix:
# uncompress < security.routed.tar.Z | tar xf -
2. Execute the following commands to replace the vulnerable routed
binary:
# cp /usr/sbin/routed /usr/sbin/routed.orig
# chmod -x /usr/sbin/routed.orig
# cp routed/routed /usr/sbin/routed
# chmod 554 /usr/sbin/routed
NOTE: This temporary fix has not been fully regression tested.
B. Official fix
IBM is currently working on the following APARs but they are not yet
available.
AIX 4.3.x: IX73951
AIX 4.2.x: IX73949
AIX 4.1.x: IX73948
AIX 3.2.x: upgrade to version 4
IV. Obtaining Fixes
IBM AIX APARs may be ordered using Electronic Fix Distribution (via the
FixDist program), or from the IBM Support Center. For more information on
FixDist, and to obtain fixes via the Internet, please reference
http://service.software.ibm.com/aixsupport/
or send electronic mail to "aixserv@austin.ibm.com" with the word "FixDist" in
the "Subject:" line.
V. Acknowledgements
Thanks to www.rootshell.com for bringing this problem to our attention.
VI. Contact Information
Comments regarding the content of this announcement can be directed to the IBM
Support Center or to:
security-alert@austin.ibm.com
To request the PGP public key that can be used to encrypt new AIX security
vulnerabilities, send email to security-alert@austin.ibm.com with a subject
of "get key".
If you would like to subscribe to the AIX security newsletter, send a note to
aixserv@austin.ibm.com with a subject of "subscribe Security". To cancel your
subscription, use a subject of "unsubscribe Security". To see a list of other
available subscriptions, use a subject of "help".
IBM and AIX are a registered trademark of International Business Machines
Corporation. All other trademarks are property of their respective holders.
==============================================================================
IBM's Internet Emergency Response Service (IBM-ERS) is a subscription-based
Internet security response service that includes computer security incident
response and management, regular electronic verification of your Internet
gateway(s), and security vulnerability alerts similar to this one that are
tailored to your specific computing environment. By acting as an extension
of your own internal security staff, IBM-ERS's team of Internet security
experts helps you quickly detect and respond to attacks and exposures across
your Internet connection(s).
As a part of IBM's Business Recovery Services organization, the IBM Internet
Emergency Response Service is a component of IBM's SecureWay(tm) line of
security products and services. From hardware to software to consulting,
SecureWay solutions can give you the assurance and expertise you need to
protect your valuable business resources. To find out more about the IBM
Internet Emergency Response Service, send an electronic mail message to
ers-sales@vnet.ibm.com, or call 1-800-742-2493 (Prompt 4).
IBM-ERS maintains a site on the World Wide Web at http://www.ers.ibm.com/.
Visit the site for information about the service, copies of security alerts,
team contact information, and other items.
IBM-ERS uses Pretty Good Privacy* (PGP*) as the digital signature mechanism
For security vulnerability alerts and other distributed information. The
IBM-ERS PGP* public key is available from http://www.ers.ibm.com/team-
info/pgpkey.html.
"Pretty Good Privacy" and "PGP" are trademarks of Philip Zimmermann.
IBM-ERS is a Member Team of the Forum of Incident Response and Security Teams
(FIRST), a global organization established to foster cooperation and response
coordination among computer security teams worldwide.
Copyright 1998 International Business Machines Corporation.
The information in this document is provided as a service to customers of
the IBM Emergency Response Service. Neither International Business Machines
Corporation, Integrated Systems Solutions Corporation, 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 contained herein, or
represents that its use would not infringe any 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 IBM or
its subsidiaries. The views and opinions of authors expressed herein do not
necessarily state or reflect those of IBM or its subsidiaries, and may not be
used for advertising or product endorsement purposes.
The material in this security alert may be reproduced and distributed,
without permission, in whole or in part, by other security incident response
teams (both commercial and non-commercial), provided the above copyright is
kept intact and due credit is given to IBM-ERS.
This security alert may be reproduced and distributed, without permission,
in its entirety only, by any person provided such reproduction and/or
distribution is performed for non-commercial purposes and with the intent of
increasing the awareness of the Internet community.
[ End IBM Advisory ]
______________________________________________________________________________
CIAC wishes to acknowledge the contributions of IBM Corporation 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
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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
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LAST 10 CIAC BULLETINS ISSUED (Previous bulletins available from CIAC)
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I-013: Count.cgi Buffer Overrun Vulnerabiliity
I-014: Vulnerability in GlimpseHTTP and WebGlimpse cgi-bin Packages
I-015: SGI IRIX Vulnerabilities (syserr and permissions programs)
I-016: SCO /usr/bin/X11/scoterm Vulnerability
I-017: statd Buffer Overrun Vulnerability
I-018: FTP Bounce Vulnerability
I-019: Tools Generating IP Denial-of-Service Attacks
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I-021: "smurf" IP Denial-of-Service Attacks
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========================FORWARDED TEXT ENDS HERE=============================
The National Institute of Standards and Technology (NIST) has
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If you believe that your system has been compromised, please contact
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Telephone: +1 888 282 0870
Email: fedcirc@fedcirc.gov
Web Server: http://www.fedcirc.gov/
* Registered in U.S. Patent and Trademark Office
The CERT Coordination Center is part of the Software Engineering
Institute. The Software Engineering Institute is sponsored by the
U.S. Department of Defense.
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.
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.
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