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TUCoPS :: Cisco :: bt1405.txt

CiscoWorks Application Vulnerabilities






----- Original Message -----
From: "Cisco Systems Product Security Incident Response Team"
<psirt@cisco.com>
To: <bugtraq@securityfocus.com>
Sent: Wednesday, August 13, 2003 7:37 AM
Subject: Cisco Security Advisory: CiscoWorks Application Vulnerabilities


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> Cisco Security Advisory: CiscoWorks Application Vulnerabilities
>
> Revision Numeral 1.0: INTERIM
> =============================
>
> For Public Release 2003 August 13 UTC 1500
>
> - ------------------------------------------------------------------------
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>
> Contents
> ========
>
>     Summary
>     Affected Products
>     Details
>     Impact
>     Software Versions and Fixes
>     Obtaining Fixed Software
>     Workarounds
>     Exploitation and Public Announcements
>     Status of This Notice: INTERIM
>     Distribution
>     Revision History
>     Cisco Security Procedures
>
> - ------------------------------------------------------------------------
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>
> Summary
> =======
>
> CiscoWorks Common Management Foundation (CMF), also packaged as part of
> CiscoWorks CD One, provides an application infrastructure foundation,
> allowing all CiscoWorks applications to share a common model for data
> storage, login, user role definitions, access privileges, and security
> protocols, as well as for navigation and launch management.
>
> Two vulnerabilities exist in CiscoWorks CMF versions prior to and
> including 2.1. The first vulnerability is a privilege escalation
> vulnerability where a guest user may obtain administrative privileges
> within the application via a specially crafted URL. The second
> vulnerability is an ability to run arbitrary commands on the CiscoWorks
> server due to an error in processing user input.
>
> This notice will be posted at
> http://www.cisco.com/warp/public/707/cisco-sa-20030813-cmf.shtml.
>
> Cisco is making patches available for CMF versions 2.0 and 2.1, free of
> charge, to correct the problem.
>
> Affected Products
> =================
>
> The following products are affected:
>
>   * All versions of CiscoWorks CD One (1st through 5th editions)
>
>   * Resource Manager Essentials (RME) versions 2.0, 2.1, and 2.2
>
>   * Cisco Resource Manager (CRM) versions 1.0 and 1.1
>
> CiscoWorks CD One is included as the base for all CiscoWorks management
> solutions, such as the LAN Management Solution, Routed WAN Management
> Solution, Small Network Management Solution, and VPN/Security Management
> Solution.
>
> To determine the version of the Common Management Foundation which is
> installed, navigate through the menus within CiscoWorks starting with
> the tab on the left titled "Server Configuration" and locate the screen
> titled "Applications and Versions" under the folder named "About the
> Server". Look for the entry in the table labeled "Common Management
> Foundation" and the corresponding version.
>
> Details
> =======
>
> The first vulnerability allows a non-privileged user of the CiscoWorks
> application, including the guest account if enabled, to send a specially
> crafted URL to the CiscoWorks server to acquire administrative
> privileges without authentication. Cisco Bug ID CSCdy33916 describes
> this vulnerability.
>
> The second vulnerability permits an authenticated user of the CiscoWorks
> application to run arbitrary commands on the CiscoWorks server as
> "casuser", the username under which the application runs. Cisco Bug ID
> CSCea15281 describes this vulnerability.
>
> Impact
> ======
>
>   * CSCdy33916 - The guest user or a normal user is capable, with a
>     specifically crafted URL, of obtaining administrative privileges
>     within the application allowing the user to perform tasks which it
>     might otherwise not be allowed to do. Examples of such tasks might
>     be approval of scheduled changes, such as software upgrades, adding
>     and removing devices, adding, removing, and modifying accounts with
>     the server, and viewing device configurations stored in the local
>     archive.
>
>   * CSCea15281 - A normal user is capable, with a specifically crafted
>     URL, of running commands remotely on the CiscoWorks server to perform
>     tasks which they may otherwise not have access to do. Examples of
>     such tasks might be viewing device configurations stored in the local
>     archive.
>
> Software Versions and Fixes
> ===========================
>
> Both vulnerabilities have been resolved in CiscoWorks Common Services 2.2.
>
> Patches for CMF versions 2.0 and 2.1 should be available by the end
> of August 2003 (date subject to change). Should the availability date
> change, Cisco will update this advisory to reflect the new availability
> date.
>
> Obtaining Fixed Software
> ========================
>
> Customers with contracts should obtain upgraded software through
> their regular update channels. For most customers, this means that
> upgrades should be obtained through the Product Upgrade Tool at
> http://tools.cisco.com/gct/Upgrade/jsp/index.jsp ( registered customers
> only) .
>
> Customers whose Cisco products are provided or maintained through prior
> or existing agreement with third-party support organizations such as
> Cisco Partners, authorized resellers, or service providers should
> contact that support organization for assistance with the upgrade, which
> should be free of charge.
>
> Customers who purchase/license the product directly from Cisco, but who
> do not hold a Cisco service contract and customers who purchase through
> third-party vendors, but are unsuccessful at obtaining fixed software
> through their point of sale should obtain an applicable software patch
> 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@cisco.com
>
> Please have your product serial number available and give the URL of
> this notice as evidence of your entitlement to a free patch. Free
> patches for non-contract customers must be requested through the TAC.
>
> Please do not contact either "psirt@cisco.com" or
"security-alert@cisco.com"
> for software upgrades.
>
> If you need assistance with the implementation of the workarounds, or
> have questions on the workarounds, please contact the Cisco Technical
> Assistance Center (TAC).
>
> See http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml for
> additional TAC contact information, including special localized
> telephone numbers and instructions and e-mail addresses for use in
> various languages.
>
> Workarounds
> ===========
>
>   * CSCdy33916 - The guest user account may be disabled, limiting the
>     exposure to only the trusted users of the CiscoWorks server. However,
>     a software upgrade or patch is required to completely resolve the
>     vulnerability.
>
>   * CSCea15281 - There is no workaround. A software upgrade or patch is
>     required.
>
> Exploitation and Public Announcements
> =====================================
>
> The Cisco PSIRT is not aware of any malicious use of the vulnerabilities
> described in this advisory.
>
> The vulnerabilities described in this advisory were both
> originally found by internal testing. Prior to disclosure, the
> bug described by CSCdy33916 was also reported by Omicron from
> Portcullis Computer Security Ltd. Their report can be found at
>
http://www.portcullis-security.com/News/archives/advisory/cisco-sa-20030813.
htm
>
> Status of This Notice: INTERIM
> ==============================
>
> This is an INTERIM advisory. 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. Cisco does not anticipate issuing
> updated versions of this advisory unless there is some material change
> in the facts. Should there be a significant change in the facts, Cisco
> will update this advisory.
>
> A stand-alone copy or paraphrase of the text of this security advisory
> that omits the distribution URL in the following section is an
> uncontrolled copy, and may lack important information or contain factual
> errors.
>
> Distribution
> ============
>
> This advisory will be posted on Cisco's worldwide website at
> http://www.cisco.com/warp/public/707/cisco-sa-20030813-cmf.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@cisco.com
>   * bugtraq@securityfocus.com
>   * full-disclosure@lists.netsys.com
>   * first-teams@first.org (includes CERT/CC)
>   * cisco@spot.colorado.edu
>   * cisco-nsp@puck.nether.net
>   * comp.dcom.sys.cisco
>   * Various internal Cisco mailing lists
>
> Future updates of this advisory, if any, will be placed on Cisco's
> worldwide website, but may or may not be actively announced on mailing
> lists or newsgroups. Users concerned about this problem are encouraged
> to check the above URL for any updates.
>
> Revision History
> ================
>
> +---------------------------------------------+
> | Revision | 2003-August-13 | Initial Public  |
> | 1.0      |                | 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 website at
> http://www.cisco.com/warp/public/707/sec_incident_response.shtml.
> This includes instructions for press inquiries regarding Cisco
> security notices. All Cisco security advisories are available at
> http://www.cisco.com/go/psirt/.
>
> - ------------------------------------------------------------------------
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>
> This notice is Copyright 2003 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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