Date: Tue, 20 Jul 1999 13:58:28 +0200
From: Patrick Oonk <[email protected]>
To: [email protected]Subject: [[email protected]: Security Bulletins Digest]
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----- Forwarded message from HP Electronic Support Center <support_feedbac=
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Date: Tue, 20 Jul 1999 04:45:18 -0700 (PDT)
Subject: Security Bulletins Digest
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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<=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<=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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To -review- bulletins already released from the main Menu,
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Near the bottom of the next page, click on "Browse the HP
Security Bulletin Archive".
Once in the archive there is another link to our current Security
Patch Matrix. Updated daily, this matrix categorizes security
patches by platform/OS release, and by bulletin topic.
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
[email protected]
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
[email protected].
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
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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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Patrick Oonk - PO1-6BONE - [email protected] - 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/
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