[3711] in bugtraq
HEWLETT-PACKARD SECURITY ADVISORY: #00041, 21 November 1996
daemon@ATHENA.MIT.EDU (Aleph One)
Fri Nov 29 12:44:55 1996
Date: Fri, 29 Nov 1996 10:58:29 -0600
Reply-To: Aleph One <aleph1@dfw.net>
From: Aleph One <aleph1@dfw.net>
To: Multiple recipients of list BUGTRAQ <BUGTRAQ@NETSPACE.ORG>
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HEWLETT-PACKARD SECURITY ADVISORY: #00041, 21 November 1996
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The information in the following Security Advisory should be acted upon
as soon as possible. Hewlett Packard will not be liable for any
consequences to any customer resulting from customer's failure to fully
implement instructions in this Security Advisory as soon as possible.
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PROBLEM: Use of user or group id's greater than 60000
PLATFORM: HP 9000 series 700/800 systems running version 10.20
DAMAGE: Increase in capability and unauthorized access
SOLUTION: Until further notice do not use any uid's or gid's greater
than 60000. Modify all such accounts by assigning them uid's
and gid's less than 60000.
AVAILABILITY: The availability of patches or procedures to allow the safe
use of large user and group id's will be announced in a future
Security Bulletin.
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I.
A. Background
Large user and group id's are a new feature of HP-UX revision 10.20.
B. Fixing the problem
Do not use large user and group id's.
C. Recommended solution
Use SAM to change all accounts that have large user or group id's.
For all groups with gid's greater than 60000:
Select the Accounts for Users and Groups...Users menu in SAM.
Modify the accounts in the group with the large group ids to use
a group with an id less than 60000.
Select the Accounts for Users and Groups...Groups menu in SAM
and remove the group with the large gid.
For all accounts with uid's greater than 60000:
Select the Accounts for Users and Groups...Users menu in SAM.
Modify all accounts with large uid's by assigning those accounts
a uid less than 60000.
D. Impact of the patch
No patch is available at this time.
E. To subscribe to automatically receive future NEW HP Security
Bulletins from the HP SupportLine Digest service via electronic
mail, do the following:
1) From your Web browser, access the URL:
http://us-support.external.hp.com (US,Canada, Asia-Pacific, and
Latin-America)
http://europe-support.external.hp.com (Europe)
2) On the HP Electronic Support Center main screen, select the
hyperlink "Support Information Digests".
3) On the "Welcome to HP's Support Information Digests"
screen, under the heading "Register Now", select the
appropriate hyperlink
"Americas and Asia-Pacific", or "Europe".
4) On the "New User Registration" screen, fill in the
fields for
the User Information and Password and then select the button
labeled "Submit New User".
5) On the "User ID Assigned" screen, select the hyperlink
"Support Information Digests".
**Note what your assigned user ID and password are for future
reference.
6) You should now be on the "HP Support Information Digests
Main"
screen. You might want to verify that your email address is
correct as displayed on the screen. From this screen, you may
also view/subscribe to the digests, including the security bulletins
digest.
F. To report new security vulnerabilities, send email to
security-alert@hp.com
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@hp.com.
Permission is granted for copying and circulating this Advisory to
Hewlett-Packard (HP) customers (or the Internet community) for the
purpose of alerting them to problems, if and only if, the Advisory 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.
________________________________________________________________________
Aleph One / aleph1@dfw.net
http://underground.org/
KeyID 1024/948FD6B5
Fingerprint EE C9 E8 AA CB AF 09 61 8C 39 EA 47 A8 6A B8 01
