Cisco Collaboration Server (CCS) versions earlier than 5.0 ship with ServletExec versions that are vulnerable to attack where unauthorized users can upload any file and gain administrative privileges. The workaround is documented in the Workaround section below. Cisco has provided an automated script to remove this vulnerability from the CCS 4.x versions This advisory is available at http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20040630-CCS.
Cisco Collaboration Server (CCS) versions earlier than 5.0 ship with ServletExec versions that are vulnerable to attack where unauthorized users can upload any file and gain administrative privileges. The workaround is documented in the Workaround section below. Cisco has provided an automated script to remove this vulnerability from the CCS 4.x versions
This advisory is available at http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20040630-CCS.
This section provides details on affected products.
CCS using an unpatched ServletExec version earlier than 3.0E is vulnerable.
CCS 5.x ships with ServletExec 4.1 and is not vulnerable.
Cisco Collaboration Server utilizes the ServletExec subcomponent provided by New Atlanta for Microsoft Windows 2000 and Windows NT. ServletExec versions prior to SE 3.0E allow for an attacker to upload files to the Web server and invoke them. Cisco bug id CSCed49648. Users should either upgrade to CCS 5.x which ships with ServletExec 4.1, download the automated script for CCS 4.x, or follow the manual instructions in the Workaround section.
Patching ServletExec either with the automated script or manual
instructions removes the UploadServlet from the ServletExec30.jar file but does
not alter the version number. The best way to test if the CCS is vulnerable is
to attempt to load the http://
Customers can continue to obtain and apply the most current patches for
ServletExec by following the instructions on the New Atlanta website:
http://www.newatlanta.com/biz/c/products/servletexec/self_help/faq/detail?faqId=195
.
Additionally, customers are encouraged to go to the following Cisco web pages
for tips on increasing security on their CCS:
http://www.cisco.com/en/US/docs/voice_ip_comm/cust_contact/contact_center/ipcc_enterprise/srnd/7x/c7scurty.html
Refer to page 38 for ServletExec notes and refer to page 71 for notes on
Collaboration Option.
Cisco Collaboration Server (CCS) has been sold as a standalone product
or as part of Cisco Web Collaboration Option where it is integrated with the
Cisco Intelligent Contact Management (ICM) software. A user can determine their
version level by using the http://
Complete these steps to patch CCS 3.x:
Complete these steps to patch CCS 4.x:
CCS 5.x is not vulnerable and these manual instructions do not apply.
Cisco Collaboration Server 4.x users can patch the software with an automated script available at http://www.cisco.com/pcgi-bin/tablebuild.pl/ccs40, or patch the software by following the manual instructions in the Workaround section, or upgrade to CCS 5.x.
Cisco Collaboration Server 3.x users can patch the software by following the manual instructions in the Workaround section, or upgrade to CCS 4.x and patch the software with an automated script, or upgrade to CCS 5.x.
The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability described in this advisory. We would like to thank Matt Moore of Pentest Limited for finding and reporting this vulnerability to us.
To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
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Revision 1.0 |
2004-June-30 |
Initial public release. |
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