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AUSCERT External Security Bulletin Redistribution
ESB-2001.294 -- HPSBUX0107-160
Security Vulnerability in login
18 July 2001
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AusCERT Security Bulletin Summary
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Product: login
Vendor: Hewlett-Packard
Operating System: HP-UX 11.11
HP-UX 11.00
HP-UX 10.20
Impact: Execute Arbitrary Code/Commands
Increased Privileges
Access Required: Remote
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Document ID: HPSBUX0107-160
Date Loaded: 20010716
Title: Security Vulnerability in login
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HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #0160, 17 July '01
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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 login(1) command allows restricted shell users to
circumvent security checks.
PLATFORM: HP9000 Series 700/800 running HP-UX releases 11.00, 11.11,
and 10.20.
DAMAGE: Restricted shell users can gain unauthorized access.
SOLUTION: Install the appropriate patch for the HP-UX release:
11.00 PHCO_24083,
11.11 PHCO_23900,
10.20 PHCO_24267.
AVAILABILITY: All patches are available now.
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I. Background
Hewlett-Packard Company has learned of a defect in login which
allows restricted shell users to execute unauthorized commands
and possibly break out of the restricted shell.
II. Recommended actions
Apply the appropriate patch as listed herein:
11.11 PHCO_23900,
11.00 PHCO_24083,
10.20 PHCO_24267.
III. 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
Use the 'Login' tab at the left side of the screen to login
using your ID and password.
Use the 'Login' tab at the left side of the screen to login
using your ID and password. Use your existing login or the
"Register" button at the left to create a 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 "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".
IV. 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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