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Category:   Application (Web Browser)  >   Netscape Vendors:   America Online, Inc.
(HP Issues Fix) Netscape Web Browser Cookie Processing Bug May Let Remote Web Sites Steal a User's Cookies for Any Domain
SecurityTracker Alert ID:  1003442
SecurityTracker URL:  http://securitytracker.com/id/1003442
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Feb 6 2002
Impact:   Disclosure of authentication information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 6.1
Description:   An information disclosure vulnerability was reported in the Netscape web browser. A remote web site may be able to access a user's domain-based cookies for a different domain.

It is reported that a remote user can access another user's cookies for any domain if the other user loads a malicious URL.

If the target user (the victim) loads the following type of URL, the user's browser will connect to 'HostOne' and the cookies for the 'HostTwo' domain will be supplied to 'HostOne'.

http://[HostOne]%00[HostTwo]/cgi-bin/cookies

It is reported that site-specific (hostname) cookies cannot be obtained, but domain cookies can be obtained. For example, cookies for www.netscape.com cannot be obtained while cookies for .netscape.com can be obtained.

A demonstration exploit is available at:

http://alive.znep.com/~marcs/security/mozillacookie/demo.html

Impact:   A remote user can access another user's cookies for any domain.
Solution:   The vendor has released a fix. Download and install the 6.2.1 version of Netscape from:

http://www.hp.com/go/netscape

Note that you may need to download other packages. Details are given on the web page.

Vendor URL:  home.netscape.com/security/ (Links to External Site)
Cause:   Access control error
Underlying OS:  UNIX (HP/UX)
Underlying OS Comments:  HP9000 Series 700/800 running HP-UX releases 11.00 and 11.11

Message History:   This archive entry is a follow-up to the message listed below.
Jan 22 2002 Netscape Web Browser Cookie Processing Bug May Let Remote Web Sites Steal a User's Cookies for Any Domain



 Source Message Contents

Subject:  HP-UX security bulletins digest



                        HP Support Information Digests

===============================================================================
o  Security Bulletin Digest Split
   ------------------------------

   The security bulletins digest has been split into multiple digests
   based on the operating system (HP-UX, MPE/iX, and HP Secure OS 
   Software for Linux).  You will continue to receive all security
   bulletin digests unless you choose to update your subscriptions.  
   
   To update your subscriptions, use your browser to access the
   IT Resource Center on the World Wide Web at:

     http://www.itresourcecenter.hp.com/

   Under the Maintenance and Support Menu, click on the "more..." link.
   Then use the 'login' link at the left side of the screen to login
   using your IT Resource Center User ID and Password.

   Under the notifications section (near the bottom of the page), select
   Support Information Digests.

   To subscribe or unsubscribe to a specific security bulletin digest, 
   select or unselect the checkbox beside it. Then click the 
   "Update Subscriptions" button at the bottom of the page.

o  IT Resource Center World Wide Web Service
   ---------------------------------------------------

   If you subscribed through the IT Resource Center and would
   like to be REMOVED from this mailing list, access the
   IT Resource Center on the World Wide Web at:

     http://www.itresourcecenter.hp.com/

   Login using your IT Resource Center User ID and Password.
   Then select Support Information Digests (located under
   Maintenance and Support).  You may then unsubscribe from the
   appropriate digest.
===============================================================================


Digest Name:  daily HP-UX security bulletins digest
    Created:  Tue Feb  5  6:45:02 PST 2002

Table of Contents:

Document ID      Title
---------------  -----------
HPSBUX0202-182   Sec. Vulnerability in Netscape 6.01

The documents are listed below.
-------------------------------------------------------------------------------


Document ID:  HPSBUX0202-182
Date Loaded:  20020204
      Title:  Sec. Vulnerability in Netscape 6.01

-----------------------------------------------------------------
 HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #00182, 04 Feb. 2002
 -----------------------------------------------------------------

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.

 ------------------------------------------------------------------
PROBLEM:  Netscape 6.01 for HP-UX, cookies can be stolen.

PLATFORM: HP9000 Series 700/800 running HP-UX releases 11.00 and
          11.11.

DAMAGE:  Cookie may be used by exploiter to impersonate the
         cookie owner.

SOLUTION: Update to Netscape 6.2.1.

MANUAL ACTIONS: Install new software version.

AVAILABILITY:  Netscape 6.2.1 for HP-UX is available now.

 ------------------------------------------------------------------

 A. Background
    The Netscape versions 4.X (including 4.75 and 4.79) are _not_
    vulnerable.  Netscape 6.01 is vulnerable.  To determine the
    version, run Netscape and select "Help" then "About Netscape"
    from the Netscape menu.

 B. Fixing the problem
    Download and install the 6.2.1 version of Netscape from:

       http://www.hp.com/go/netscape

     Note that you may need to download other packages.
     Details are given on the web page.

 C. Recommended solution
    As above.

 D. 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.

    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.

    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.itrc.hp.com:~ftp/export/patches/hp-ux_patch_matrix

    On the "Support Information Digest Main" page:
    click on the "HP Security Bulletin Archive".


 E. 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.
 ________________________________________________________________
-----End of Document ID:  HPSBUX0202-182--------------------------------------


 
 


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