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__________________________________________________________
The U.S. Department of Energy
Computer Incident Advisory Capability
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__________________________________________________________
INFORMATION BULLETIN
HP-UX ppl executable Vulnerability
November 26, 1997 18:00 GMT Number H-31a
______________________________________________________________________________
PROBLEM: A vulnerability with the ppl executable ([/usr]/bin/ppl) has
been identified.
PLATFORM: HP 9000 series 700/800s running HP-UX 9.x & 10.x
DAMAGE: This vulnerability may allow local users to gain root
privileges.
SOLUTION: Install patches listed below.
______________________________________________________________________________
VULNERABILITY Exploit details involving this vulnerability have been made
ASSESSMENT: publicly available.
______________________________________________________________________________
[ Appended to H-31 on November 26,1997 with additional patch information from
Hewlett-Packard ]
[ Start Hewlett-Packard Advisory ]
=============================================================================
Document Id: [HPSBUX9702-053]
Date Loaded: [02-13-97]
Description: Security Vulnerability in the ppl executable
==============================================================================
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HEWLETT-PACKARD SECURITY BULLETIN: #00053, 13 February 1997
- -------------------------------------------------------------------------
The information in the following Security Bulletin should be acted upon
as soon as possible. Hewlett Packard will not be liable for any
consequences to any customer resulting from customer's failure to fully
implement instructions in this Security Bulletin as soon as possible.
- -------------------------------------------------------------------------
PROBLEM: Security Vulnerability in [/usr]/bin/ppl
PLATFORM: HP 9000 Series 700/800s running HP-UX releases 9.X & 10.X
DAMAGE: Vulnerabilities exist allowing local users to gain root
privileges.
SOLUTION: Apply patch:
PHNE_9378 for all platforms with HP-UX releases 9.X
PHNE_9375 for all platforms with HP-UX releases 10.00/10.01
PHNE_9376 for all platforms with HP-UX releases 10.10
PHNE_9771 for all platforms with HP-UX releases 10.20
AVAILABILITY: All patches are available now.
- -------------------------------------------------------------------------
I.
A. Background
A vulnerability with the ppl executable ([/usr]/bin/ppl) has been
discovered. The fileset affected is Networking.SLIP-RUN.
B. Fixing the problem
The vulnerability can be eliminated from HP-UX releases 9.X and
10.X by applying the appropriate patch.
C. Recommended solution
1. Determine which patch is appropriate for your operating
system.
2. Hewlett-Packard's HP-UX patches are available via email
and the World Wide Web
To obtain a copy of the Hewlett-Packard SupportLine email
service user's guide, send the following in the TEXT PORTION
OF THE MESSAGE to support@us.external.hp.com (no Subject
is required):
send guide
The users guide explains the HP-UX patch downloading process
via email and other services available.
World Wide Web service for downloading of patches
is available via our URL:
(http://us.external.hp.com)
3. Apply the patch to your HP-UX system.
4. Examine /tmp/update.log (9.X), or /var/adm/sw/swinstall.log
(10.X), for any relevant WARNING's or ERROR's.
D. Impact of the patch
The patches for HP-UX releases 9.X and 10.X provide enhancements
to the ppl executable to avoid this vulnerability.
E. To subscribe to automatically receive future NEW HP Security
Bulletins from the HP SupportLine mail service via electronic
mail, do the following:
1) From your Web browser, access the URL:
http://us-support.external.hp.com (US,Canada,
Asia-Pacific, and Latin-America)
http://europe-support.external.hp.com (Europe)
2) On the HP Electronic Support Center main screen,
select the hyperlink "Support Information Digests".
3) On the "Welcome to HP's Support Information Digests"
screen, under the heading "Register Now", select the
appropriate hyperlink "Americas and Asia-Pacific", or "Europe".
4) On the "New User Registration" screen, fill in the fields
for the User Information and Password and then select the
button labeled "Submit New User".
5) On the "User ID Assigned" screen, select the hyperlink
"Support Information Digests".
6) You should now be on the "HP Support Information Digests
Main" screen. You might want to verify that your email address
is correct as displayed on the screen. From this screen, you
may also view/subscribe to the digests, including the security
bulletins digest.
F. To report new security vulnerabilities, send email to
security-alert@hp.com
Please encrypt 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 Bulletin to
Hewlett-Packard (HP) customers (or the Internet community) for the
purpose of alerting them to problems, if and only if, the Bulletin 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 Hewlett-Packard Advisory ]
[ Start Appended Hewlett-Packard Advisory ]
Document ID: HPSBUX9704-057
Date Loaded: 971124
Title: Security Vulnerability in ppl command
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**REVISED 01** HEWLETT-PACKARD SECURITY BULLETIN: #00057, 22 April 1997
Last Revised: 24 November 1997
- -------------------------------------------------------------------------
The information in the following Security Bulletin should be acted upon
as soon as possible. Hewlett-Packard will not be liable for any
consequences to any customer resulting from customer's failure to fully
implement instructions in this Security Bulletin as soon as possible.
- -------------------------------------------------------------------------
PROBLEM: Security Vulnerability in [/usr]/bin/ppl
PLATFORM: HP 9000 Series 700/800s running HP-UX releases 9.X & 10.X
DAMAGE: Vulnerability exists that could allow local users to gain
root privileges.
SOLUTION: Apply patch:
**REVISED 01**
PHNE_13179 for all platforms with HP-UX releases 9.X,
PHNE_13180 for all platforms with HP-UX releases 10.00 & 10.01,
PHNE_13181 for all platforms with HP-UX release 10.10,
PHNE_13182 for all platforms with HP-UX release 10.20,
PHNE_12499 for all platforms with HP-UX release 10.30.
AVAILABILITY: All patches are currently available.
CHANGE SUMMARY: This bulletin revision references new & improved patches.
- -------------------------------------------------------------------------
I.
A. Background
A vulnerability in the ppl executable ([/usr]/bin/ppl) exists.
(Detailed in AUSCERT Advisory AA-97.07).
B. Fixing the problem
**REVISED 01**
The vulnerability can be eliminated from HP-UX releases 9.X and
up to and including 10.30, by applying the appropriate patch.
C. Recommended solution
**REVISED 01**
1. Determine which patch is appropriate for your operating
system. HP-UX version 10.00 users are encouraged to upgrade
to HP-UX version 10.01 or above.
NOTE: HP-UX release 10.24 (VVOS) is not vulnerable.
World Wide Web service for downloading of patches is available
for free by registered users via our URL at the Electronic
Support Center (ESC). (See Section E below).
2. Apply the patch to your HP-UX system.
3. Examine /tmp/update.log (9.X), or /var/adm/sw/swinstall.log
(10.X), for any relevant WARNING's or ERROR's.
D. Impact of the patch
The patches for HP-UX releases 9.X and 10.X provide enhancements
to the ppl executable to avoid this vulnerability.
E. To subscribe to automatically receive future NEW HP Security
Bulletins from the HP ESC via electronic mail, and to download
patches for free by registered users.do the following:
User your browser to get to the HP Electronic Support Center page at:
http://us-support.external.hp.com
(for US, Canada, Asia-Pacific, & Latin-America)
http://europe-support.external.hp.com
(for Europe)
Click on the Technical Knowledge Database, register as a user
(remember to save the User ID assigned to you, and your password),
and it will connect to a HP Search Technical Knowledge DB page.
Near the bottom is a hyperlink to our Security Bulletin archive.
Once in the archive there is another link to our current
security patch matrix. Updated daily, this matrix is categorized
by platform/OS release, and by bulletin topic.
F. 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 Bulletin to
Hewlett-Packard (HP) customers (or the Internet community) for the
purpose of alerting them to problems, if and only if, the Bulletin
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: HPSBUX9704-057--------------------------------------
[ End Appended Hewlett-Packard Advisory ]
______________________________________________________________________________
CIAC wishes to acknowledge the contributions of Hewlett-Packard for the
information contained in this bulletin.
______________________________________________________________________________
CIAC, the Computer Incident Advisory Capability, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
National Laboratory in Livermore, California. CIAC is also a founding
member of FIRST, the Forum of Incident Response and Security Teams, a
global organization established to foster cooperation and coordination
among computer security teams worldwide.
CIAC services are available to DOE, DOE contractors, and the NIH. CIAC
can be contacted at:
Voice: +1 510-422-8193
FAX: +1 510-423-8002
STU-III: +1 510-423-2604
E-mail: ciac@llnl.gov
For emergencies and off-hour assistance, DOE, DOE contractor sites,
and the NIH may contact CIAC 24-hours a day. During off hours (5PM -
8AM PST), call the CIAC voice number 510-422-8193 and leave a message,
or call 800-759-7243 (800-SKY-PAGE) to send a Sky Page. CIAC has two
Sky Page PIN numbers, the primary PIN number, 8550070, is for the CIAC
duty person, and the secondary PIN number, 8550074 is for the CIAC
Project Leader.
Previous CIAC notices, anti-virus software, and other information are
available from the CIAC Computer Security Archive.
World Wide Web: http://ciac.llnl.gov/
Anonymous FTP: ciac.llnl.gov (198.128.39.53)
Modem access: +1 (510) 423-4753 (28.8K baud)
+1 (510) 423-3331 (28.8K baud)
CIAC has several self-subscribing mailing lists for electronic
publications:
1. CIAC-BULLETIN for Advisories, highest priority - time critical
information and Bulletins, important computer security information;
2. SPI-ANNOUNCE for official news about Security Profile Inspector
(SPI) software updates, new features, distribution and
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3. SPI-NOTES, for discussion of problems and solutions regarding the
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Our mailing lists are managed by a public domain software package
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following request as the E-mail message body, substituting
ciac-bulletin, spi-announce OR spi-notes for list-name:
E-mail to ciac-listproc@llnl.gov or majordomo@tholia.llnl.gov:
subscribe list-name
e.g., subscribe ciac-bulletin
You will receive an acknowledgment email immediately with a confirmation
that you will need to mail back to the addresses above, as per the
instructions in the email. This is a partial protection to make sure
you are really the one who asked to be signed up for the list in question.
If you include the word 'help' in the body of an email to the above address,
it will also send back an information file on how to subscribe/unsubscribe,
get past issues of CIAC bulletins via email, etc.
PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing
communities receive CIAC bulletins. If you are not part of these
communities, please contact your agency's response team to report
incidents. Your agency's team will coordinate with CIAC. The Forum of
Incident Response and Security Teams (FIRST) is a world-wide
organization. A list of FIRST member organizations and their
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This document was prepared as an account of work sponsored by an
agency of the United States Government. Neither the United States
Government nor the University of California nor any of their
employees, makes any warranty, express or implied, or assumes any
legal liability or responsibility for the accuracy, completeness, or
usefulness of any information, apparatus, product, or process
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otherwise, does not necessarily constitute or imply its endorsement,
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University of California. The views and opinions of authors expressed
herein do not necessarily state or reflect those of the United States
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