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TUCoPS :: Unix :: Various Flavours :: ciaci079.txt

IBM AIX Sdrd Daemon Vulnerability





             __________________________________________________________

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

                             INFORMATION BULLETIN

                      IBM AIX "sdrd" daemon Vulnerability

August 4, 1998 20:00 GMT                                          Number I-079
______________________________________________________________________________
PROBLEM:       A vulnerability exists in "sdrd" daemon that allows other nodes
               to make request, thereby allowing remote retrieval of any file
               off the system possible.
PLATFORM:      IBM SP2.
DAMAGE:        By exploiting this vulnerability, remote users may gain access
               to the system.
SOLUTION:      Apply the patch indicated below.
______________________________________________________________________________
VULNERABILITY  Currently, there are no reports of this vulnerability being
ASSESSMENT:    exploited. However, CIAC recommends that all systems running
               the "sdrd" daemon be patched immediately.
______________________________________________________________________________


        CIAC has been informed of a security vulnerability with "sdrd" daemon
running on the IBM SP2 platform.   This vulnerability may allow remote users
to retrieve files on the System Data Repository (SDR) machine, thereby
allowing remote users to gain access to the system.  

        The System Data Repository (SDR) is a SP subsystem that stores SP
configuration and some operational information.  The SDR information is stored
on a Control Workstation, but is made available through a client/server
interface to other network-connected nodes.  In most cases, SDR interaction is
performed using the SDR command-line interface.  However, the "sdrd" daemon
allows other nodes to make request without performing any authentication. 
This security flaw allows anyone to use the retrieve file command to get any
file on the SRD system.

        CIAC is unaware of any workarounds.  The only alternative is to download
and install the patch provided by IBM. 


IBM Patch Information

ftp://aix.software.ibm.com/aix/efixes/security/sdrd.tar.Z

Checksums for the binaries inside the tar file are:

MD5 (sdrd.pssp2_2.efix) = 8e7d77c1489b6cd49bd92a2ca8ac1658
MD5 (sdrd.pssp2_3.efix) = 363ee6a6696e945bdd8dab64b008f608
MD5 (sdrd.pssp2_4.ptf2.efix) = e190530906e6d0e2a128d4d10b0ee06e



______________________________________________________________________________

A special thanks goes to Chuck Athey and Jim Garlick of Lawrence Livermore 
National Laboratory for finding and verifying this vulnerability.
______________________________________________________________________________


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.

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