SSRT3642 Potential Security Vulnerabilities Apache web server on HP-UX VVOS and Webproxy.

From: Security Alert (secure_at_cup.hp.com)
Date: 10/08/03 

Date: 8 Oct 2003 09:16:01 -0600

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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
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    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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--
Yours truly,
HP S/W Security Team
WTEC Cupertino, California
Return-Path: secure@cup.hp.com
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