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AUSCERT External Security Bulletin Redistribution
ESB-2001.006 -- HP Support Information Digests HPSBUX0012-134
Sec. Vulnerability in top(1)
5 January 2001
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AusCERT Security Bulletin Summary
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Product: top(1)
Vendor: Hewlett-Packard
Operating System: HP-UX 10.XX, 11.00 and 11.04
Platform: HP9000 Servers
Impact: Increased Privileges
Access Required: Existing Account
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Document ID: HPSBUX0012-134
Date Loaded: 20001217
Title: Sec. Vulnerability in top(1)
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HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #0134, 18 Dec. '00
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The information in the following Security Bulletin 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 Bulletin as soon as possible.
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ISSUE: the top(1) command has a security defect.
PLATFORM: HP9000 Servers running HP-UX release 11.00 and 10.XX.
DAMAGE: Users can modify files writable by group "sys".
SOLUTION: Apply the appropriate patch listed below.
HP-UX release 11.00: PHCO_22686,
11.04: PHCO_22921,
10.20: PHCO_22556,
10.24: PHCO_22922,
10.10: PHCO_22557,
10.01: PHCO_22558.
AVAILABILITY: These patches are available now.
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I.
A. Background
Hewlett-Packard Company has been informed of a defect in the
program /usr/bin/top.
B. Fixing the problem:
The problem can be removed by applying the patch mentioned below.
A system reboot is NOT required.
For servers running HP-UX release 11.00: PHCO_22686,
11.04: PHCO_22921,
10.20: PHCO_22556,
10.24: PHCO_22922,
10.10: PHCO_22557,
10.01: PHCO_22558.
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://itrc.hp.com
Under the Maintenance and Support Menu (Electronic Support
Center): click on the "more..." link. Then -
Use the 'Login' tab at the left side of the screen to login
using your ID and password. Check with your system
administrator to see if you have an existing login or use
the "Register" button at the left to create a login. You
will need to login in order to gain access to many areas of
the ITRC. Remember to save the User ID assigned to you, and
your password.
Under the Maintenance and Support Menu, click on the "more..."
link. Under the "Notifications" section (near the bottom of
the page), select "Support Information Digests".
To -subscribe- to future HP Security Bulletins or other
Technical Digests, click the check box (in the left column)
for the appropriate digest and then click the "Update
Subscriptions" button at the bottom of the page.
or
To -review- bulletins already released, select the link
(in the middle column) for the appropriate digest.
To -gain access- to the Security Patch Matrix, select
the link for "hp security bulletins archive" near the bottom.
Once in the archive the top 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:
ftp.itrc.hp.com
~ftp/export/patches/hp-ux_patch_matrix"
On the "Support Information Digest Main" page:
click on the "HP Security Bulletin Archive".
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 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.
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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
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from the original authors to ensure that the information is still current.
Contact information for the authors of the original document is included
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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)
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On call after hours for emergencies.
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