[support_feedback@us-support.external.hp.com: Security Bulletins

From: Patrick Oonk (patrickat_private)
Date: Tue Jul 20 1999 - 04:58:28 PDT

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    ----- Forwarded message from HP Electronic Support Center  <support_feedbac=
    k@us-support.external.hp.com> -----
    
    Date: Tue, 20 Jul 1999 04:45:18 -0700 (PDT)
    Subject: Security Bulletins Digest
    From: support_feedback@us-support.external.hp.com (HP Electronic Support Ce=
    nter )
    To: security_info@us-support.external.hp.com
    Reply-To: support_feedback@us-support.external.hp.com
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    Digest Name:  Daily Security Bulletins Digest
        Created:  Tue Jul 20  3:00:02 PDT 1999
    
    Table of Contents:
    
    Document ID      Title
    ---------------  -----------
    HPSBUX9907-100   CDE Leaves Current Directory in root PATH
    
    The documents are listed below.
    ---------------------------------------------------------------------------=
    ----
    
    =0C
    Document ID:  HPSBUX9907-100
    Date Loaded:  19990719
          Title:  CDE Leaves Current Directory in root PATH
    
    -------------------------------------------------------------------------
    **REVISED 01** HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #00100, 07 July 1=
    999
    Last Revised: 19 July 1999
    -------------------------------------------------------------------------
    
    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:  The current directory is in the root user's PATH
              after logging in using CDE.
    
    PLATFORM: HP 9000 series 700/800 at HP-UX revision 10.X
    
    DAMAGE:  Increase in privileges..
    
    SOLUTION: Modify /usr/dt/bin/Xsession until a patch is available.
    
    AVAILABILITY:  This advisory will be updated when patches are available.
    
    CHANGE SUMMARY: HTML to text conversion instructions for script added.
    
    -------------------------------------------------------------------------
    
    I.
       A. Background - The PATH environemnt variable is constructed from
          several sources including dtsearchpath and scripts in
          /etc/dt/config/Xsession.d/ and /usr/dt/config/Xsession.d/.
          The resulting PATH contains the string "::" which will be
          interpreted as the current directory.  The root user should
          not have the current directory in the PATH.
    
       B. Fixing the problem - Since the PATH environment variable can be
          affected by dtsearchpath and several scripts, the recommended
          solution is to clean up the root user's PATH after is has been
          created.
    
    **REVISED 01**
          Note:  This file is in HTML format.  If you are editing
          the text version from a mailing the line below:
    
              for (i=3D1; i&lt;=3Dn; i++) {
    
          must be changed.  Replace the characters between
          the second "i" and the "=3Dn" with the single "less than"
          character (ascii 0x3c).
    
          The line will then read:
    
             for (i=3D1; iX=3Dn; i++) {
             where X stands for the "less than" character.
    
    
    
    
    
    In /usr/dt/bin/Xsession just before this:
    
    # #########################################################################=
    ##
    #
    #   Startup section.
    
    
    Add this:
    
    ###################### Clean up $PATH for root ##########################
    if [ "$USER" =3D "root" ]
    then
      Log "Clean up PATH for root user"
      Log "Old PATH =3D $PATH"
      PATH=3D`echo $PATH | awk '
    {
     # Remove elements from PATH that are
     #  (a)  "."
     #  (b)  ""
     #  (c)  blank
     #
       gsub (" ",":", $0) # Substitite ":" for each blank
       n =3D split ($0, path, ":")  # Split into elements with ":" as delimiter
       first =3D 1  # To suppress leading ":" in new PATH
       for (i=3D1; i&lt;=3Dn; i++) {
         len =3D length(path[i])
         dot =3D index(path[i], ".")
         dot_only =3D 0
         if ((len =3D=3D 1) && (dot=3D=3D1)) {
           dot_only =3D 1
         }
         # print element if it is not "" and not "."
         if (!(len=3D=3D0) && !(dot_only=3D=3D1)) {
           if(first !=3D 1) {
             printf (":") # if not first element, print ":" in front
           }
           printf ("%s",path[i])
           first =3D 0
         }
      }
    }
    END { printf ("\n") }'`
    Log "New PATH =3D $PATH"
    fi
    ###################### End - Clean up $PATH for root ####################
    
       C. To subscribe to automatically receive future NEW HP Security
          Bulletins from the HP Electronic Support Center via electronic
          mail, do the following:
    
          Use your browser to get to the HP Electronic Support Center page
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          Security Bulletin Archive".
          Once in the archive there is another link to our current Security
          Patch Matrix.  Updated daily, this matrix categorizes security
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          The security patch matrix is also available via anonymous ftp:
    
          us-ffs.external.hp.com
          ~ftp/export/patches/hp-ux_patch_matrix
    
       D. To report new security vulnerabilities, send email to
    
           security-alertat_private
    
          Please encrypt any exploit information using the security-alert
          PGP key, available from your local key server, or by sending a
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         Permission is granted for copying and circulating this Bulletin to
         Hewlett-Packard (HP) customers (or the Internet community) for the
         purpose of alerting them to problems, if and only if, the Bulletin
         is not edited or changed in any way, is attributed to HP, and
         provided such reproduction and/or distribution is performed for
         non-commercial purposes.
    
         Any other use of this information is prohibited. HP is not liable
         for any misuse of this information by any third party.
    ________________________________________________________________________
    -----End of Document ID:  HPSBUX9907-100-----------------------------------=
    ---
    
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    --=20
     Patrick Oonk - PO1-6BONE - patrickat_private - www.pine.nl/~patrick
     Pine Internet B.V.                            PGP key ID BE7497F1 =20
     Tel: +31-70-3111010 - Fax: +31-70-3111011 - http://www.pine.nl/
     -- Pine Security Digest - http://security.pine.nl/ (Dutch) ----
     Excuse of the day: Police are examining all internet packets in
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