SUPPORT COMMUNICATION -
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.
Potential Security Impact:
Remote increase in privilege.
Source: Hewlett-Packard Company, HP Software Security Response Team
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.
SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
HP-UX B.11.00 (obsolete), B.11.11 and B.11.23.
Note: HP-UX B.11.00 is obsolete as of January 1, 2007.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As of March 1, 2004 the Portable File System(PFS) is obsolete, and no longer supported on any HP-UX release.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
for reporting this vulnerability to email@example.com.
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.
action: install PHKL_28060, PHKL_26450, PHCO_26449 or subsequent, discontinue use of PFS.
action: PHKL_28025, PHKL_26269, PHCO_25841 or subsequent, discontinue use of PFS.
action: discontinue use of PFS.
END AFFECTED VERSIONS
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:
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).
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:
Version: 1 (rev.1) - 09 April 2007
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.
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 damages resulting from user's use or disregard
of the information provided in this Bulletin. To the extent permitted by law, HP disclaims all warranties,
either express or implied, including the warranties of merchantability and fitness for a particular
purpose, title and non-infringement."
©Copyright 2007 Hewlett-Packard Development Company, L.P.
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