Re: HPSBUX02203 SSRT071339 rev.1 - HP-UX Running Portable File System (PFS), Remote Increase in Privilege

I have a quick question for anyone in the group that has an answer...
the advisory lists the following as vulnerable:

HP-UX B.11.11
=============
OS-Core.CORE-KRN
ProgSupport.C-INC
OS-Core.CORE2-KRN
OS-Core.UX-CORE
action: PHKL_28025, PHKL_26269, PHCO_25841 or subsequent, discontinue
use of PFS.

Now.. do this mean that if anyone of the listed filesets are installed
(and wouldn't OS-Core.CORE-KRN always be?) the machine is vulnerable?

Does it mean they all need to be installed?

Finally -- in regard to the patches.. is " PHKL_28025, PHKL_26269, PHCO_
25841" an 'and' or an 'or' condition (in other words do they all need to
be installed or one of the three?)

Thanks!
../toguy




secure@xxxxxxxxxxxxxxxx (Security Alert) wrote in
news:f0358j$8p1$2@xxxxxxxxxxxxxxxxxxx:


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SUPPORT COMMUNICATION - SECURITY BULLETIN

Document ID: c00913684
Version: 1

HPSBUX02203 SSRT071339 rev.1 - HP-UX Running Portable File System
(PFS), Remote Increase in Privilege

NOTICE: The information in this Security Bulletin should be acted upon
as soon as possible.

Release Date: 2007-03-30
Last Updated: 2007-04-09

Potential Security Impact: Remote increase in privilege.

Source: Hewlett-Packard Company, HP Software Security Response Team

VULNERABILITY SUMMARY
A potential security vulnerability has been identified in HP-UX with
the Portable File System (PFS). The vulnerability could be exploited
remotely to gain an increase in privilege.

References: None

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
HP-UX B.11.00 (obsolete), B.11.11 and B.11.23.

BACKGROUND

Note: HP-UX B.11.00 is obsolete as of January 1, 2007. It is discussed
in this Security Bulletin because the patches cited in the Resolution
section were available before January 1, 2007.

As of March 1, 2004 the Portable File System(PFS) is obsolete, and no
longer supported on any HP-UX release. PFS is supplied, but no longer
supported on HP-UX B.11.00, B.11.11, and B.11.23.

PFS was originally adopted by HP to provide accessibility to Rock
Ridge Interchange file system format on CD-ROM file systems. The
equivalent functionality is now provided by HP via the HP-UX CDFS file
system type and HP-UX's standard file systems commands.

The Hewlett-Packard Company thanks iDefense Labs
http://www.idefense.com for reporting this vulnerability to
security-alert@xxxxxxx

To determine if a system has an affected version, search the output of
"swlist -a revision -l fileset" for an affected fileset. Then
determine if the recommended patch or update is installed.

AFFECTED VERSIONS

HP-UX B.11.00
=============
OS-Core.CORE-KRN
ProgSupport.C-INC
OS-Core.CORE2-KRN
OS-Core.UX-CORE
action: install PHKL_28060, PHKL_26450, PHCO_26449 or subsequent,
discontinue use of PFS.

HP-UX B.11.11
=============
OS-Core.CORE-KRN
ProgSupport.C-INC
OS-Core.CORE2-KRN
OS-Core.UX-CORE
action: PHKL_28025, PHKL_26269, PHCO_25841 or subsequent, discontinue
use of PFS.

HP-UX B.11.23
=============
OS-Core.CORE-KRN
ProgSupport.C-INC
OS-Core.CORE2-KRN
OS-Core.UX-CORE
action: discontinue use of PFS.

END AFFECTED VERSIONS

RESOLUTION

The resolution is to avoid the vulnerability by discontinuing the use
of PFS.

For B.11.00 and B.11.11, the enhanced CDFS and mount/umount commands
are provided by the following patches. These patches are available on:
http://itrc.hp.com

HP-UX B.11.00 - PHKL_28060, PHKL_26450, PHCO_26449 or subsequent
HP-UX B.11.11 - PHKL_28025, PHKL_26269, PHCO_25841 or subsequent

With these patches, a mount command option (mount -F cdfs -o rr) must
be used to enable support of Rock Ridge at mount time.

For B.11.22, B.11.23 and later HP-UX releases, the Rock Ridge
Interchange support is provided with the core HP-UX OS and is the
default (no patches or special option required).

MANUAL ACTIONS: Yes - NonUpdate
Discontinue the use of PFS.

PRODUCT SPECIFIC INFORMATION
HP-UX Software Assistant: HP-UX Software Assistant is an enhanced
application that replaces HP-UX Security Patch Check. It analyzes all
HP-issued Security Bulletins and lists recommended actions that may
apply to a specific HP-UX system. It can also download patches and
create a depot automatically. For more information see:
https://www.hp.com/go/swa

HISTORY
Version: 1 (rev.1) - 09 April 2007 Initial release

Third Party Security Patches: Third party security patches which are
to be installed on systems running HP software products should be
applied in accordance with the customer's patch management policy.

Support: For further information, contact normal HP Services support
channel.

Report: To report a potential security vulnerability with any HP
supported product, send Email to: security-alert@xxxxxx It is strongly
recommended that security related information being communicated to HP
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* The Software Product Category that this Security Bulletin relates to
is represented by the 5th and 6th characters of the Bulletin number in
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GN = HP General SW
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System management and security procedures must be reviewed frequently
to maintain system integrity. HP is continually reviewing and
enhancing the security features of software products to provide
customers with current secure solutions.

"HP is broadly distributing this Security Bulletin in order to bring
to the attention of users of the affected HP products the important
security information contained in this Bulletin. HP recommends that
all users determine the applicability of this information to their
individual situations and take appropriate action. HP does not warrant
that this information is necessarily accurate or complete for all user
situations and, consequently, HP will not be responsible for any
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©Copyright 2007 Hewlett-Packard Development Company, L.P.

Hewlett-Packard Company shall not be liable for technical or editorial
errors or omissions contained herein. The information provided is
provided "as is" without warranty of any kind. To the extent permitted
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Hewlett-Packard products referenced herein are trademarks of
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Other product and company names mentioned herein may be trademarks of
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--
Yours truly,
HP S/W Security Team
WTEC Cupertino, California


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