Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2003.0711 -- HEWLETT-PACKARD COMPANY SECURITY BULLETIN: HPSBUX0310-285
SSRT3642 Potential Security Vulnerabilities Apache web server on HP-UX
VVOS and Webproxy.
10 October 2003
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AusCERT Security Bulletin Summary
---------------------------------
Product: Virtualvault 4.5
Virtualvault 4.6
Webproxy 2.0
Publisher: Hewlett-Packard
Operating System: HP-UX release B.11.04
Platform: HP9000
Impact: Denial of Service
Access Required: Remote
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Source: HEWLETT-PACKARD COMPANY
SECURITY BULLETIN: HPSBUX0310-285
Originally issued: 07 October 2003
SSRT3642 Potential Security Vulnerabilities Apache web server on
HP-UX VVOS and Webproxy.
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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: 1. Potential Apache web server crash when it goes into
an infinite loop due to too many subsequent internal
redirects and nested subrequests. (VU#379828)
2. No de-allocation of file descriptors while servicing
CGI scripts through child processes.
IMPACT: Potential crash of Apache web server.
PLATFORM: HP9000 Servers running HP-UX release B.11.04 (VVOS)
with Virtualvault A.04.50 or Virtualvault A.04.60
installed.
SOLUTION: For Virtualvault and Webproxy releases install
recommended patches.
Virtualvault 4.5:
PHSS_29541 s700_800 11.04 Virtualvault 4.5 IWS Update
PHSS_29545 s700_800 11.04 Virtualvault 4.5 OWS update
Virtualvault 4.6:
PHSS_29542 s700_800 11.04 Virtualvault 4.6 IWS update
PHSS_29546 s700_800 11.04 Virtualvault 4.6 OWS update
Webproxy 2.0:
PHSS_29547 s700_800 11.04 Webproxy server 2.0 update
MANUAL ACTIONS: No
AVAILABILITY: All patches are available now on <itrc.hp.com>.
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A. Background
Virtualvault 4.5, Virtualvault 4.6, Webproxy 2.0: all use
Apache 1.3.27.
The Apache Web Server Project
<http://www.apache.org/dist/httpd/Announcement.html> has
identified potential vulnerabilities in the Apache HTTP
Server.
AFFECTED VERSIONS
=================
The following is a list by HP-UX revision of
affected filesets or patches and fix information.
To determine if a system has an affected version,
search the output of "swlist -a revision -l fileset"
for an affected fileset or patch, then determine if
a fixed revision or applicable patch is installed.
The affected filesets are: (product.fileset)
Virtualvault A.04.50
VaultTS.VV-IWS,fr=A.04.50,fa=HP-UX_B.11.04_32/64,v=HP
VaultTS.VVOS-ADM-RUN,fr=A.04.50,fa=HP-UX_B.11.04_32/64,v=HP
VaultTS.VV-CORE-CMN,fr=A.04.50,fa=HP-UX_B.11.04_32/64,v=HP
VaultWS.WS-CORE,fr=A.04.50,fa=HP-UX_B.11.04_32/64,v=HP
VaultTS.VV-IWS,fr=A.04.50,fa=HP-UX_B.11.04_32/64,v=HP
VaultTS.VV-IWS-JK,fr=A.04.50,fa=HP-UX_B.11.04_32/64,v=HP
VaultTS.VV-IWS-GUI,fr=A.04.50,fa=HP-UX_B.11.04_32/64,v=HP
VaultTS.VV-CORE-CMN,fr=A.04.50,fa=HP-UX_B.11.04_32/64,v=HP
VaultTS.VV-IWS-JAVA,fr=A.04.50,fa=HP-UX_B.11.04_32/64,v=HP
Virtualvault A.04.60
VaultTS.VV-IWS,fr=A.04.60,fa=HP-UX_B.11.04_32/64,v=HP
VaultWS.WS-CORE,fr=A.04.60,fa=HP-UX_B.11.04_32/64,v=HP
VaultTS.VV-CORE-CMN,fr=A.04.60,fa=HP-UX_B.11.04_32/64,v=HP
VaultTS.VV-IWS-JAVA,fr=A.04.60,fa=HP-UX_B.11.04_32/64,v=HP
VaultTS.VV-IWS-GUI,fr=A.04.60,fa=HP-UX_B.11.04_32/64,v=HP
HP Webproxy A.02.00
HP_Webproxy.HPWEB-PX-CORE,fr=A.02.00,fa=HP-UX_B.11.04_32/64,v=HP
fix: install
Virtualvault 4.5: PHSS_29541 PHSS_29545 or subsequent
Virtualvault 4.6: PHSS_29542 PHSS_29546 or subsequent
Webproxy 2.0: PHSS_29547 or subsequent
END AFFECTED VERSIONS
The Apache web server version 1.3.28 incorporates fix for the
following problems:
1. VU#379828: The server could crash when going into an
infinite loop due to too many subsequent internal
redirects and nested subrequests.
2. No de-allocation of file descriptors while servicing CGI
scripts through child processes.
NOTE: This problem does not impact HP NonStop Servers,
HP OpenVMS, nor the HP Tru64 UNIX/Trucluster Server.
B. Recommended solution
Install HP Apache versions 1.3.28
The fixes for the following Virtualvault and Webproxy
releases are available with the following patches:
Virtualvault 4.5:
PHSS_29541: s700_800 11.04 Virtualvault 4.5 IWS Update
PHSS_29545: s700_800 11.04 Virtualvault 4.5 OWS update
Virtualvault 4.6:
PHSS_29542: s700_800 11.04 Virtualvault 4.6 IWS update
PHSS_29546: s700_800 11.04 Virtualvault 4.6 OWS update
Webproxy 2.0:
PHSS_29547 s700_800 11.04 Webproxy server 2.0 update
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>
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.
In the left most frame select "Maintenance and Support".
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.
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
bottom of the page) Once in the archive the third link is
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
automates the process of reviewing the patch matrix for
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".
The PGP key used to sign this bulletin is available from
several PGP Public Key servers. The key identification
information is:
2D2A7D59
HP Security Response Team (Security Bulletin signing only)
<security-alert@hp.com>
Fingerprint =
6002 6019 BFC1 BC62 F079 862E E01F 3AFC 2D2A 7D59
If you have problems locating the key please write to
security-alert@hp.com. Please note that this key is
for signing bulletins only and is not the key returned
by sending 'get key' to security-alert@hp.com.
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.
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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.
Hewlett-Packard Company and the names of HP products referenced
herein are trademarks and/or service marks of Hewlett-Packard
Company. Other product and company names mentioned herein may be
trademarks and/or service marks of their respective owners.
________________________________________________________________
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