full-disclosure - Cisco Security Advisory: Cisco Content Service Switch 11000 Series Web Management Vulnerability

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Message-ID: 200208140800.arrowpoint-webmgmt-vuln-pub@psirt.cisco.com
From: psirt at cisco.com (Cisco Systems Product Security Incident Response Team)
Subject: Cisco Security Advisory: Cisco Content Service Switch 11000 Series Web Management Vulnerability

-----BEGIN PGP SIGNED MESSAGE-----
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     Cisco Security Advisory: Cisco Content Service Switch 11000 Series Web
                            Management Vulnerability

Revision 2.0

  For Public Re-release 2002 August 14 at 1500 UTC

  For Public Release 2001 May 31 at 1500 UTC

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

Contents

   Summary
   Affected Products
   Details
   Impact
   Software Versions and Fixes
   Obtaining Fixed Software
   Workarounds
   Exploitation and Public Announcements
   Status of This Notice
   Distribution
   Revision History
   Cisco Security Procedures

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

Summary

   The Cisco Content Service Switch (CSS) 11000 series switches do not
   enforce the correct restrictions for accessing the web management URL.

   After successful authentication users are redirected to the web management
   URL. If users directly connect to the redirected URL they are granted
   access to the web management interface without having to reauthenticate.
   This vulnerability results in users gaining access to secure data.

   This vulnerability is documented as Cisco bug IDs CSCdu20931 and
   CSCdw08549.

   This advisory will be posted at
   http://www.cisco.com/warp/public/707/arrowpoint-webmgmt-vuln-pub.shtml.

   This advisory is being re-released because the vulnerability was not
   completely fixed previously. Users are still vulnerable and should apply
   the workarounds in the Workarounds section to mitigate the affects of the
   vulnerability.

Affected Products

   The CSS 11000 series switches (formerly known as Arrowpoint), consist of
   the CSS 11050, CSS 11150 and CSS 11800 hardware platforms. They run the
   Cisco WebNS software.

   All CSS 11000 series switches running any WebNS software revision are
   affected by this vulnerability.

   No other Cisco product is currently known to be affected by this
   vulnerability.

Details

   If users bookmark the URL they are redirected to after a successful
   authentication on the CSS 11000 series switches, they can later access the
   web management interface without having to reauthenticate.

   This advisory is being re-released because the vulnerability was not
   completely fixed previously. Users are still vulnerable and should apply
   the workarounds in the Workarounds section to mitigate the affects of the
   vulnerability.

   This vulnerability is documented as Cisco bug IDs CSCdu20931 and
   CSCdw08549, which requires a CCO account to view.

Impact

   A user can gain access to the web management interface without being
   authenticated on the CSS 11000 series switch. This vulnerability can be
   minimized by restricting http access to the CSS 11000 series switch.

Software Versions and Fixes

   This vulnerability is fixed in the Cisco WebNS software which, according
   to its current schedule, will be available for download in late December
   2002 and early January 2003.

Obtaining Fixed Software

   Cisco will be offering free software upgrades to remedy this vulnerability
   for all affected customers. Customers with service contracts may upgrade
   to any software release containing the feature sets they have purchased.

   Customers with contracts should obtain upgraded software through their
   regular update channels. For most customers, this means that upgrades
   should be obtained via the Software Center on Cisco's Worldwide Web site
   at http://www.cisco.com.

   Customers without contracts should get their upgrades by contacting the
   Cisco Technical Assistance Center (TAC). TAC contacts are as follows:

     * +1 800 553 2447 (toll free from within North America)
     * +1 408 526 7209 (toll call from anywhere in the world)
     * e-mail: tac@...co.com

   See http://www.cisco.com/warp/public/687/Directory.shtml for additional
   TAC contact information, including instructions and e-mail addresses for
   use in various languages.

   Give the URL of this notice as evidence of your entitlement to a free
   upgrade. Free upgrades for non contract customers must be requested
   through the TAC. Please do not contact either "psirt@...co.com" or
   "security-alert@...co.com" for software upgrades.

Workarounds

   Web Management can be disabled on the switch.

   Access control lists can be applied to restrict HTTP access to the Cisco
   CSS 11000 series switch. Access control lists also affect traffic to the
   Virtual interface of the Cisco CSS 11000 series switch, so must be applied
   with care. For further details on configuring access lists please refer to
   the product documentation:

   http://www.cisco.com/univercd/cc/td/doc/product/webscale/css/bsccfggd/profiles.htm
   http://www.cisco.com/univercd/cc/td/doc/product/webscale/css/advcfggd/sgacleql.htm

Exploitation and Public Announcements

   The Cisco PSIRT is not aware of any malicious use of the vulnerability
   described in this advisory.

   These vulnerabilities were reported to PSIRT by CERT/CC and were
   discovered by Anton Rager of Avaya Security Consulting Services.

Status of This Notice: Interim

   This is an Interim notice. Cisco anticipates issuing updated versions of
   this notice at irregular intervals as there are material changes in the
   facts, and will continue to update this notice as necessary. Although
   Cisco cannot guarantee the accuracy of all statements in this notice, all
   of the facts have been checked to the best of our ability.

Distribution

   This notice will be posted on Cisco's Worldwide Web site at
   http://www.cisco.com/warp/public/707/arrowpoint-webmgmt-vuln-pub.shtml.

   In addition to Worldwide Web posting, a text version of this notice is
   clear-signed with the Cisco PSIRT PGP key and is posted to the following
   e-mail and Usenet news recipients:

     * cust-security-announce@...co.com
     * bugtraq@...urityfocus.com
     * firewalls@...ts.gnac.com
     * first-teams@...st.org (includes CERT/CC)
     * cisco@...t.colorado.edu
     * cisco-nsp@...k.nether.net
     * comp.dcom.sys.cisco
     * Various internal Cisco mailing lists

   Future updates of this notice, if any, will be placed on Cisco's Worldwide
   Web server, but may or may not be actively announced on mailing lists or
   newsgroups. Users concerned about this problem are encouraged to check the
   URL given above for any updates.

Revision History

   +-----------------------------------------------------------------+
   | Revision 2.0 | August 14, 2002 | Revised Interim Public Release |
   |--------------+-----------------+--------------------------------|
   | Revision 1.0 | May 31, 2001    | Initial Public Release         |
   +-----------------------------------------------------------------+

Cisco Security Procedures

   Complete information on reporting security vulnerabilities in Cisco
   products, obtaining assistance with security incidents, and registering to
   receive security information from Cisco, is available on Cisco's Worldwide
   Web site at
   http://www.cisco.com/warp/public/707/sec_incident_response.shtml. This
   includes instructions for press inquiries regarding Cisco security
   notices.

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

   This notice is Copyright 2002 by Cisco Systems, Inc. This notice may be
   redistributed freely after the release date given at the top of the text,
   provided that redistributed copies are complete and unmodified, and
   include all date and version information.

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

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