Published:
06 January 2000
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
==========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2000.007 -- HP SECURITY BULLETIN HPSBUX0001-108
REVISED 01
Security Vulnerability in Aserver
07 January 2000
===========================================================================
Hewlett-Packard has released the following *REVISED* bulletin concerning
a vulnerability in Aserver on HP9000 Series 7/800 running HP-UX releases
10.X and 11.X.
This vulnerability may be exploited to gain root access.
This is the same vulnerability as reported in CIAC Bulletin K-014 which
was re-distributed as AusCERT ESB-2000.001.
- --------------------------BEGIN INCLUDED TEXT--------------------
Document ID: HPSBUX0001-108
Date Loaded: 20000105
Title: Security Vulnerability in Aserver (revised)
- -------------------------------------------------------------------------
**REVISED 01** HEWLETT-PACKARD COMPANY SECURITY ADVISORY: #00108, 01 Jan 2000
Last Revised: 5 January, 2000
- -------------------------------------------------------------------------
The information in the following Security Advisory should be acted upon
as soon as possible. Hewlett-Packard Company 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.
- -------------------------------------------------------------------------
PROBLEM: /opt/audio/bin/Aserver can be used to gain root access.
PLATFORM: HP9000 Series 7/800 running HP-UX releases 10.X and 11.X
DAMAGE: Root access is possible.
SOLUTION: **REVISED 01** Change the Aserver permissions.
AVAILABILITY: This advisory will be updated when patches are available.
CHANGE SUMMARY: This revision contains revised permission recommendations.
- -------------------------------------------------------------------------
I.
A. Background
A procedure to use /opt/audio/bin/Aserver to gain root access
has been made public.
B. Recommended solution
**REVISED 01** | The need for suid permissions is being reviewed.
| The only requirement for suid currently identified
| is to allow any user to force a restart of the Aserver.
| This feature may be eventually be removed. Until a
| patch is available the recommended solution, as root
| is:
| chmod 555 /opt/audio/bin/Aserver
C. To subscribe to automatically receive future NEW HP Security
Bulletins from the HP IT Resource Center via electronic mail,
do the following:
Use your browser to get to the HP IT Resource Center page at:
http://us-support.external.hp.com
(for US, Canada, Asia-Pacific, & Latin-America)
http://europe-support.external.hp.com (for Europe)
Under the Maintenance and Support Menu (Electronic Support Center):
click on the "more..." link. Then -
To -subscribe- to future HP Security Bulletins, or
To -review- bulletins already released
click on "Support Information Digests" near the bottom of the
page, under "Notifications".
Login with your user ID and password (or register for one).
(Remember to save the User ID assigned to you, and your password).
On the "Support Information Digest Main" page:
click on the "HP Security Bulletin Archive".
Once in the archive the third link is to our current Security
Patch Matrix. Updated daily, this matrix categorizes security
patches by platform/OS release, and by bulletin topic.
The security patch matrix is also available via anonymous ftp:
us-ffs.external.hp.com
~ftp/export/patches/hp-ux_patch_matrix
D. 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.
________________________________________________________________________
- -----End of Document ID: HPSBUX0001-108--------------------------------------
- --------------------------END INCLUDED TEXT--------------------
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to use any or all of this information is
the responsibility of each user or organisation, and should be done so in
accordance with site policies and procedures.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the original authors to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/Information/advisories.html
If you believe that your system has been compromised, contact AusCERT or
your representative in FIRST (Forum of Incident Response and Security
Teams).
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for emergencies.
-----BEGIN PGP SIGNATURE-----
Version: 2.6.3i
Charset: noconv
Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key
iQCVAwUBOHXqmCh9+71yA2DNAQELwgQAiV1rHTv4roORF/R6YElWdGSL8PcoTWPN
YxBNehNkluO2ev5EpFxprHovhHExj5dw7d7zPa+GfEJncMOgsaVfPuop7Yx8PDvS
glGdu79pJUaxkXfmxNrlEhvVhdQZ5rDsDJ2ZfMbZ/u8d9e3Cf4lGb9bi6fLLcnkz
FpUTiRhW2fQ=
=oGq4
-----END PGP SIGNATURE-----