Date: Mon, 3 Sep 2001 11:15:55 +0100
From: "Boyce, Nick" <[email protected]>
To: Bugtraq Mailing List <[email protected]>
Subject: FW: HP-UX series 800 10.X patch digest
This HP "Weekly HP-UX Series 800 10.X Patch Digest" describes a "login
cumulative patch" for HPUX 10.26, PHCO_24454, which seems to be highly
security-related. It's presumably a mistake that it wasn't sent to HP's
"Security Bulletins Digest" list ...
Nick Boyce
EDS, Bristol, UK
-----Original Message-----
From: [email protected]
[mailto:[email protected]]
Sent: 02 September 2001 15:51
To: [email protected]Subject: HP-UX series 800 10.X patch digest
HP Support Information Digests
===
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===
Digest Name: weekly HP-UX series 800 10.X patch digest
Created: Sun Sep 2 3:05:03 PDT 2001
Table of Contents:
Document ID Title
--------------- -----------
PHCO_24454 s700_800 10.26 login(1) cumulative patch
The documents are listed below.
----------------------------------------------------------------------------
---
Document ID: PHCO_24454
Date Loaded: 20010828
Title: s700_800 10.26 login(1) cumulative patch
Patch Name: PHCO_24454
Patch Description: s700_800 10.26 login(1) cumulative patch
Creation Date: 01/08/24
Post Date: 01/08/28
Hardware Platforms - OS Releases:
s700: 10.26
s800: 10.26
Products: N/A
Filesets:
BLS.BLS-CORE
Automatic Reboot?: No
Status: General Release
Critical: No
Path Name: /hp-ux_patches/s700_800/10.X/PHCO_24454
Symptoms:
PHCO_24454:
1. Partial port of 10.20 patch PHCO_24267
2. Telnet/rlogin commands do not honor max_privs specified
in the Remote host database (M6RHDB)
(PHCO_24267:)
( SR:8606189604 CR:JAGad58818 )
Login allows certain shell users excessive freedom.
PHCO_20372:
Login fails with the error:
Can not create temporary node
Cannot set host sensitivity level.
PHCO_17719:
Unsuccesful login attempts are not recorded, so lastb(1)
returns inaccurate information.
Defect Description:
PHCO_24454:
1. Partial port of 10.20 patch PHCO_24267
2. Login is not setting the base privileges of the remote
users based on the remote host database and user
authentication profile
Resolution:
Login has been modified to set the base privileges of the
remote users as the intersection of max_privs for client
in M6RHDB and base privileges specified for user in
authentication profile
(PHCO_24267:)
( SR:8606189604 CR:JAGad58818 )
Login should be more stringent in which environment
variables it allows restricted shell users to set.
Resolution:
Login now only allows the DISPLAY and TERM variables to be
set by restricted shell users unless configured otherwise in
the security configuration file. To change the behavior of
this patch, the /etc/default/security file must be created
if it does not already exist. This file should be world
readable and root writeable. To this file, add one of the
following three entries:
The new default behavior corresponds to a setting of:
RSH_SECURITY=2
It is possible to ease the restrictions and allow the
setting of any environment variables which are not known to
be potentially risky. This is done by specifying:
RSH_SECURITY=1
Finally, for compatibility reasons, it is possible to revert
to the old, excessively permissive behavior by specifying:
RSH_SECURITY=0
PHCO_20372:
During login, a temporary node is created. If, for some
reason, a file already exists with this name, login will
generate the above error and exit.
PHCO_17719:
login(1) does not write to /var/adm/btmp when an
unsuccessful login occurs.
Resolution:
Merge the lastest HP-UX 10.20 login source, which has
had this problem resolved.
SR:
8606189604
Patch Files:
/tcb/lib/login
what(1) Output:
/tcb/lib/login:
2001/08/23 Hewlett-Packard HP-UX 10.26 TOS [ ic5ga -
DAV17 ]
$Revision: 78.6.1.8 $
01/08/21 cmd/login.c, hpux, hpux_10.26, ic5ga Revisi
on 1.8 PATCH_10.26 (PHCO_24454)
01/08/21 cmd/login_sec.c, hpux, hpux_10.26, ic5ga Re
vision 1.15 PATCH_10.26 (PHCO_24454)
cksum(1) Output:
2398677150 65536 /tcb/lib/login
Patch Conflicts: None
Patch Dependencies: None
Hardware Dependencies: None
Other Dependencies: None
Supersedes:
PHCO_17719 PHCO_20372
Equivalent Patches: None
Patch Package Size: 120 KBytes
Installation Instructions:
Please review all instructions and the Hewlett-Packard
SupportLine User Guide or your Hewlett-Packard support terms
and conditions for precautions, scope of license,
restrictions, and, limitation of liability and warranties,
before installing this patch.
------------------------------------------------------------
1. Back up your system before installing a patch.
2. Login as root.
3. Copy the patch to the /tmp directory.
4. Move to the /tmp directory and unshar the patch:
cd /tmp
sh PHCO_24454
5a. For a standalone system, run swinstall to install the
patch:
swinstall -x autoreboot=true -x match_target=true \
-s /tmp/PHCO_24454.depot
By default swinstall will archive the original software in
/var/adm/sw/patch/PHCO_24454. If you do not wish to retain a
copy of the original software, you can create an empty file
named /var/adm/sw/patch/PATCH_NOSAVE.
WARNING: If this file exists when a patch is installed, the
patch cannot be deinstalled. Please be careful
when using this feature.
It is recommended that you move the PHCO_24454.text file to
/var/adm/sw/patch for future reference.
To put this patch on a magnetic tape and install from the
tape drive, use the command:
dd if=/tmp/PHCO_24454.depot of=/dev/rmt/0m bs=2k
Special Installation Instructions: None
-----End of Document ID:
PHCO_24454------------------------------------------
