[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[HP-UX] Schwachstelle in wall - HPSBUX0305-258



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

Liebe Kolleginnen und Kollegen,

soeben erreichte uns das nachfolgende Bulletin der HP SupportLine.
Wir geben diese Informationen unveraendert an Sie weiter.

Es existiert eine nicht naeher beschriebene Schwachstelle in wall,
einem Tool zum Anzeigen von Text auf den Terminals aller angemeldeter
Nutzer eines Systems. Diese koennte ein lokaler Angreifer ausnutzen,
erweiterte Privilegien auf einem Opfersystem zu erlangen (wall ist
setgid tty gesetzt).

Betroffen sind HP9000 Server/Workstations mit HP-UX 10.20, 11.00, und
11.11.

(c) der deutschen Zusammenfassung bei DFN-CERT GmbH; die Verbreitung,
auch auszugsweise, ist nur unter Hinweis auf den Urheber, DFN-CERT
GmbH, und nur zu nicht kommerziellen Zwecken gestattet.

Mit freundlichen Gruessen,

	Marco Thorbruegge, DFN-CERT

- -- 
Marco Thorbruegge        |              mailto:thorbruegge@xxxxxxxxxxx
DFN-CERT GmbH            |          http://www.cert.dfn.de/team/matho/
Heidenkampsweg 41        |                    Phone: +49(40)808077-555
D-20097 Hamburg/Germany  |                      FAX: +49(40)808077-556
PGP-Key: 0xAE662425 Fingerpr.: 7E5C A77A F91D 63D1 02AB 9526 53FF F1A0 


                        HP Support Information Digests

===============================================================================
o  Security Bulletin Digest Split
   ------------------------------

   The security bulletins digest has been split into multiple digests
   based on the operating system (HP-UX, MPE/iX, and HP Secure OS 
   Software for Linux).  You will continue to receive all security
   bulletin digests unless you choose to update your subscriptions.  
   
   To update your subscriptions, use your browser to access the
   IT Resource Center on the World Wide Web at:

     http://support.itrc.hp.com/

   Under the Maintenance and Support Menu, click on the "more..." link.
   Then use the 'login' link at the left side of the screen to login
   using your IT Resource Center User ID and Password.

   Under the notifications section (near the bottom of the page), select
   Support Information Digests.

   To subscribe or unsubscribe to a specific security bulletin digest, 
   select or unselect the checkbox beside it. Then click the 
   "Update Subscriptions" button at the bottom of the page.

o  IT Resource Center World Wide Web Service
   ---------------------------------------------------

   If you subscribed through the IT Resource Center and would
   like to be REMOVED from this mailing list, access the
   IT Resource Center on the World Wide Web at:

     http://support.itrc.hp.com/

   Login using your IT Resource Center User ID and Password.
   Then select Support Information Digests (located under
   Maintenance and Support).  You may then unsubscribe from the
   appropriate digest.
===============================================================================


Digest Name:  daily HP-UX security bulletins digest
    Created:  Wed May  7 12:05:02 EDT 2003

Table of Contents:

Document ID      Title
- ---------------  -----------
HPSBUX0305-258   SSRT3483 Potential Security Vulnerability in wall(1M)

The documents are listed below.
- -------------------------------------------------------------------------------


Document ID:  HPSBUX0305-258
Date Loaded:  20030506
      Title:  SSRT3483 Potential Security Vulnerability in wall(1M)

- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

 -----------------------------------------------------------------
 Source: HEWLETT-PACKARD COMPANY
 SECURITY BULLETIN: HPSBUX0305-258
 Originally issued: 06 May 2003
 SSRT3483 Potential Security Vulnerability in wall(1M) command
 -----------------------------------------------------------------

NOTICE: There are no restrictions for distribution of this
Bulletin provided that it remains complete and intact.

The information in the following Security Bulletin should be
acted upon as soon as possible.  Hewlett-Packard Company will
not be liable for any consequences to any customer resulting
from customer's failure to fully implement instructions in this
Security Bulletin as soon as possible.

 -----------------------------------------------------------------
PROBLEM: wall(1M) contains a locally exploitable vulnerability.

IMPACT:  Potential privilege increase or Denial of Service (DoS).

PLATFORM: All HP9000 servers/workstations running HP-UX releases
          10.20, 11.00, and 11.11.

SOLUTION: Apply the appropriate patch for HP-UX releases:
          PHCO_28717         for 10.20,
          PHCO_28718         for 11.00,
          PHCO_28719         for 11.11.

MANUAL ACTIONS: No

AVAILABILITY:  All patches are available now on <itrc.hp.com>.
 -----------------------------------------------------------------
 A. Background
    The wall(1M) command which is sgid, contains a vulnerability
    which potentially could be locally used to increase privilege
    or gain unauthorized access.

    NOTE: This problem does not impact HP NonStop Servers,
          HP OpenVMS, HP Tru64 UNIX/Trucluster Servers.

 B. Recommended solution
    Retrieve and install the appropriate patch for the systems in
    question from <itrc.hp.com>.

              PHCO_28717         for 10.20,
              PHCO_28718         for 11.00,
              PHCO_28719         for 11.11.

 C. To subscribe to automatically receive future NEW HP Security
    Bulletins from the HP IT Resource Center via electronic
    mail, do the following:

    Use your browser to get to the HP IT Resource Center page
    at:

       http://itrc.hp.com

    Use the 'Login' tab at the left side of the screen to login
    using your ID and password.  Use your existing login or the
    "Register" button at the left to create a login, in order to
    gain access to many areas of the ITRC.  Remember to save the
    User ID assigned to you, and your password.

    In the left most frame select "Maintenance and Support".

    Under the "Notifications" section (near the bottom of
    the page), select "Support Information Digests".

    To -subscribe- to future HP Security Bulletins or other
    Technical Digests, click the check box (in the left column)
    for the appropriate digest and then click the "Update
    Subscriptions" button at the bottom of the page.

    or

    To -review- bulletins already released, select the link
    (in the middle column) for the appropriate digest.

    NOTE: Using your itrc account security bulletins can be
          found here:
    http://itrc.hp.com/cki/bin/doc.pl/screen=ckiSecurityBulletin


    To -gain access- to the Security Patch Matrix, select
    the link for "The Security Bulletins Archive".  (near the
    bottom of the page)  Once in the archive the third link is
    to the current Security Patch Matrix. Updated daily, this
    matrix categorizes security patches by platform/OS release,
    and by bulletin topic.  Security Patch Check completely
    automates the process of reviewing the patch matrix for
    11.XX systems.  Please note that installing the patches
    listed in the Security Patch Matrix will completely
    implement a security bulletin _only_ if the MANUAL ACTIONS
    field specifies "No."

    The Security Patch Check tool can verify that a security
    bulletin has been implemented on HP-UX 11.XX systems providing
    that the fix is completely implemented in a patch with no
    manual actions required.  The Security Patch Check tool cannot
    verify fixes implemented via a product upgrade.

    For information on the Security Patch Check tool, see:
    http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
    displayProductInfo.pl?productNumber=B6834AA

    The security patch matrix is also available via anonymous
    ftp:

    ftp://ftp.itrc.hp.com/export/patches/hp-ux_patch_matrix/

    On the "Support Information Digest Main" page:
    click on the "HP Security Bulletin Archive".

    The PGP key used to sign this bulletin is available from
    several PGP Public Key servers.  The key identification
    information is:

       2D2A7D59
       HP Security Response Team (Security Bulletin signing only)
       <security-alert@xxxxxx>
       Fingerprint =
         6002 6019 BFC1 BC62 F079 862E E01F 3AFC 2D2A 7D59

    If you have problems locating the key please write to
    security-alert@xxxxxxx  Please note that this key is
    for signing bulletins only and is not the key returned
    by sending 'get key' to security-alert@xxxxxxx


 D. To report new security vulnerabilities, send email to

    security-alert@xxxxxx

    Please encrypt any exploit information using the
    security-alert PGP key, available from your local key
    server, or by sending a message with a -subject- (not body)
    of 'get key' (no quotes) to security-alert@xxxxxxx

 -----------------------------------------------------------------

(c)Copyright 2003 Hewlett-Packard Company
Hewlett-Packard Company shall not be liable for technical or
editorial errors or omissions contained herein. The information
in this document is subject to change without notice.
Hewlett-Packard Company and the names of HP products referenced
herein are trademarks and/or service marks of Hewlett-Packard
Company.  Other product and company names mentioned herein may be
trademarks and/or service marks of their respective owners.

 ________________________________________________________________
- - --

- -----BEGIN PGP SIGNATURE-----
Version: PGP 8.0

iQA/AwUBPrffKeAfOvwtKn1ZEQJUcACfeSCSz/8OWT8SAGg1SzElK4BNfFYAoLBI
iurQ1ZJGAMNAW3ePDHLjhHbb
=OUk9
- -----END PGP SIGNATURE-----
- -----End of Document ID:  HPSBUX0305-258--------------------------------------


-----BEGIN PGP SIGNATURE-----
Version: 2.6.2i

iQEVAgUBPro06nsh3gGuZiQlAQHZvAf/aGPOrXGvCk0c64Zl0o6C3sPLjoQuCN7z
71aIuxPcBQAOUadMUn2TLV2MHE1VvdwYFDdajGIE6h2pMw71U85YAwQHlUKPFs+R
nP5zUJPoxCFvc+GEfO0UyE3BGW/RcACZPx9jtXAxBonFBUKycDjjDT1GAQfjBR1H
gA41mLd1VD7W518Q7NTkQjkUZPgvjZpka08UlJQrS71sQSs8r3+ECNvWnN9mk61L
1yYpLPZu4UQ8uqIl6Uo8Efrj6Bh1uPfEo6IbG4r9uXJh7Hq1sjqTtJg38wHvLcHa
axjP9Iqj68o2lDkyMifn/EqDygGXBaGyVZlAxb9VXS/0nvbyq7lH7w==
=VZTq
-----END PGP SIGNATURE-----