SSRT3461 SSRT2462 Potential Security Vulnerability in uucp(1) and uusub(1)
Security Alert
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Source: HEWLETT-PACKARD COMPANY
SECURITY BULLETIN: HPSBUX0306-262
Originally issued: 2 June 2003
SSRT3461 SSRT2462 Potential Security Vulnerability in uucp(1) and
uusub(1)
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NOTICE: There are no restrictions for distribution of this
Bulletin provided that it remains complete and intact.
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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PROBLEM: uusub(1) and uucp(1) have potential buffer overflows.
IMPACT: Potential local escalation of privileges.
PLATFORM: HP9000 Series 700/800 running HP-UX release 10.20 and
11.00 and 11.11.
SOLUTION: Until a final patch is available download and install
the fixed preliminary patches from the ftp site,
as documented below.
MANUAL ACTIONS: Yes - NonUpdate
Download and install fixed versions from the
ftp site, as documented below.
AVAILABILITY: This bulletin will be revised when official
patches are released.
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A. Background
A potential buffer overflow in uucp(1) and uusub has been
identified and has now been fixed. This problem only affects
HP-UX releases 10.20, 11.00 and 11.11.
These are all unofficial patches for 10.20 and 11.00 which
contain binaries for both uucp(1) and uusub(1M), while the
UNOF_29107 only contains the fix for uucp(1), as the uusub
defect was already fixed in the initial release for 11.11.
NOT IMPACTED:
HP NonStop Servers,
HP Tru64 UNIX/TruCluster Server,
HP OpenVMS
HP-UX VVOS (11.04)
The SSRT thanks LSD Research Group (http://lsd-pl.net) for
reporting this potential vulnerability to HP.
B. Recommended solution
HP has prepared temporary depot files that can be installed
to fully rectify the problem. These temporary depot files
MUST be removed before the official patch is installed.
Failure to properly remove these could cause corruption of
the system and inadvertently re-introduce the problem at a
later time when the temporary patch is removed.
Until a final patch is available, download and install the
System: hprc.external.hp.com (192.170.19.51)
Login: uusub
Password: uusub1
FTP Access: <ftp://uusub:uus...@hprc.external.hp.com/>
or: <ftp://uusub:uus...@192.170.19.51/>
Note: There is an ftp defect in IE5 that may result in
a browser hang. To work around this:
- Select Tools -> Internet Options -> Advanced
- Un-check the option: [ ] Enable folder view for FTP sites.
The files are:
for HP-UX 10.20 PHCO_29105.depot
for HP-UX 11.00 PHCO_29106.depot
for HP-UX 11.11 UNOF_29107.depot
The cksum(1) output for the preliminary 10.20 patch is:
983192971 133120 PHCO_29105.depot
while for the preliminary 11.00 patch is:
4193187951 122880 PHCO_29106.depot
and the preliminary 11.11 depot is:
3139487257 71680 UNOF_29107.depot
If you wish to verify the md5 sums please refer to:
HPSBUX9408-016
Patch sums and the MD5 program
for the 10.20 patch:
$ md5 PHCO_29105.depot
3BEBA6A5801A659C5691AC8D80F6FD18
while for the 11.00 patch:
$ md5 PHCO_29106.depot
78F33F3F9070AA68556AF09A4848250E
and the 11.11 depot is:
$ md5 UNOF_29107.depot
2D461DAD98889A01AACF9CD5E82DABAB
Copy the depot to a protected directory, and launch Software
Distributor (SD) to install.
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:
Use the 'Login' tab at the left side of the screen to login
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"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.
In the left most frame select "Maintenance and Support".
Under the "Notifications" section (near the bottom of
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To -subscribe- to future HP Security Bulletins or other
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To -review- bulletins already released, select the link
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NOTE: Using your itrc account security bulletins can be
found here:
<http://itrc.hp.com/cki/bin/doc.pl/screen=ckiSecurityBulletin>
To -gain access- to the Security Patch Matrix, select
the link for "The Security Bulletins Archive". (near the
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to the current Security Patch Matrix. Updated daily, this
matrix categorizes security patches by platform/OS release,
and by bulletin topic. Security Patch Check completely
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11.XX systems. Please note that installing the patches
listed in the Security Patch Matrix will completely
implement a security bulletin _only_ if the MANUAL ACTIONS
field specifies "No."
The Security Patch Check tool can verify that a security
bulletin has been implemented on HP-UX 11.XX systems providing
that the fix is completely implemented in a patch with no
manual actions required. The Security Patch Check tool cannot
verify fixes implemented via a product upgrade.
For information on the Security Patch Check tool, see:
<http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
displayProductInfo.pl?productNumber=B6834AA>
The security patch matrix is also available via anonymous
ftp:
<ftp://ftp.itrc.hp.com/export/patches/hp-ux_patch_matrix/>
On the "Support Information Digest Main" page:
click on the "HP Security Bulletin Archive".
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(c)Copyright 2003 Hewlett-Packard Company
Hewlett-Packard Company shall not be liable for technical or
editorial errors or omissions contained herein. The information
in this document is subject to change without notice.
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Company. Other product and company names mentioned herein may be
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________________________________________________________________
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--
Yours truly,
HP S/W Security Team
WTEC Cupertino, California
Return-Path: sec...@cup.hp.com
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