Date: Thu, 8 Jul 1999 06:28:10 -0700
From: [email protected]
To: [email protected]Subject: Security Bulletins Digest
HP Support Information Digests
o HP Electronic Support Center World Wide Web Service
---------------------------------------------------
If you subscribed through the HP Electronic Support Center and would
like to be REMOVED from this mailing list, access the
HP Electronic Support Center on the World Wide Web at:
http://us-support.external.hp.com
Login using your HP Electronic Support Center User ID and Password.
Then select Support Information Digests. You may then unsubscribe from the
appropriate digest.
Digest Name: Daily Security Bulletins Digest
Created: Thu Jul 8 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.
-------------------------------------------------------------------------------
Document ID: HPSBUX9907-100
Date Loaded: 19990707
Title: CDE Leaves Current Directory in root PATH
-------------------------------------------------------------------------
HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #00100, 07 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 privledges.
SOLUTION: Modify /usr/dt/bin/Xsession until a patch is available.
AVAILABILITY: This advisory will be updated when patches are available.
-------------------------------------------------------------------------
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.
In /usr/dt/bin/Xsession just before this:
# ###########################################################################
#
# Startup section.
Add this:
###################### Clean up $PATH for root ##########################
if [ "$USER" = "root" ]
then
Log "Clean up PATH for root user"
Log "Old PATH = $PATH"
PATH=`echo $PATH | awk '
{
# Remove elements from PATH that are
# (a) "."
# (b) ""
# (c) blank
#
gsub (" ",":", $0) # Substitite ":" for each blank
n = split ($0, path, ":") # Split into elements with ":" as delimiter
first = 1 # To suppress leading ":" in new PATH
for (i=1; i<=n; i++) {
len = length(path[i])
dot = index(path[i], ".")
dot_only = 0
if ((len == 1) && (dot==1)) {
dot_only = 1
}
# print element if it is not "" and not "."
if (!(len==0) && !(dot_only==1)) {
if(first != 1) {
printf (":") # if not first element, print ":" in front
}
printf ("%s",path[i])
first = 0
}
}
}
END { printf ("\n") }'`
Log "New PATH = $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
at:
http://us-support.external.hp.com
(for US, Canada, Asia-Pacific, & Latin-America)
http://europe-support.external.hp.com (for Europe)
Login with your user ID and password (or register for one).
Remember to save the User ID assigned to you, and your password.
Once you are in the Main Menu:
To -subscribe- to future HP Security Bulletins,
click on "Support Information Digests".
To -review- bulletins already released from the main Menu,
click on the "Search Technical Knowledge Database."
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
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--------------------------------------
