FW: HP-UX series 800 10.X patch digest

["Boyce, Nick" <nick.boyce () eds com>]

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: support_feedback () us-support external hp com
[mailto:support_feedback () us-support external hp com] 
Sent: 02 September 2001 15:51
To: hpux_800_10x_patch () us-support external hp com
Subject: HP-UX series 800 10.X patch digest



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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------------------------------------------