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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----- Hash: SHA1 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. 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