Cisco Security Advisory
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AV:N/AC:L/Au:N/C:P/I:P/A:P/E:F/RL:OF/RC:C
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The Cisco Show and Share webcasting and video sharing application contains two vulnerabilities.
The first vulnerability allows an unauthenticated user to access several administrative web pages.
The second vulnerability permits an authenticated user to execute arbitrary code on the device under the privileges of the web server user account.
Cisco has released software updates that address these vulnerabilities.
There are no workarounds available for these vulnerabilities.
This advisory is posted at https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20111019-sns.
Note: Effective October 18, 2011, Cisco moved the current list of Cisco Security Advisories and Responses published by Cisco PSIRT. The new location is https://sec.cloudapps.cisco.com/security/center/publicationListing. You can also navigate to this page from the Cisco Products and Services menu of the Cisco Security (SIO) Portal. Following this transition, new Cisco Security Advisories and Responses will be published to the new location. Although the URL has changed, the content of security documents and the vulnerability policy are not impacted. Cisco will continue to disclose security vulnerabilities in accordance with the published Security Vulnerability Policy.
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Vulnerable Products
These vulnerabilities affect all versions of Cisco Show and Share prior to the first fixed releases as indicated in the Software Version and Fixes section of this Cisco Security Advisory.
To determine the Cisco Show and Share Software release that an appliance is running, administrators can log in to the Appliance Administrative Interface (AAI), and access the main menu. The software version is identified next to the Cisco Show and Share field. The following example identifies a Cisco Show and Share appliance running version 5.2.2
Cisco Show and Share Application Administration Interface Main Menu IP: 192.168.0.1 Cisco Show and Share 5.2.2 http://sns.example.com/vportal SHOW_INFO Show system information. BACKUP_AND_RESTORE Back up and restore. APPLIANCE_CONTROL Configure advance options NETWORK_SETTINGS Configure network parameters. DATE_TIME_SETTINGS Configure date and time CERTIFICATE_MANAGEMENT Manage all certificates in the system < OK > <LOG OUT>Products Confirmed Not Vulnerable
The following products are confirmed not vulnerable:
- Cisco Video Portal
No other Cisco products are currently known to be affected by these vulnerabilities.
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Cisco Show and Share is a webcasting and video sharing application that helps organizations create secure video communities to share ideas and expertise, optimize global video collaboration, and personalize the connection between customers, employees, and students with user-generated content.
Cisco Show and Share provides the ability to create live and on-demand video content, and define who can watch specific content. It offers viewer collaboration tools such as commenting, rating, and word tagging, and provides comprehensive access reporting.
Cisco Show and Share contains the following vulnerabilities:
- Anonymous users can access some administration pages
Several administrative web pages of the Cisco Show and Share can be accessed without prior user authentication. These include pages for accessing Encoders and Pull Configurations, Push Configurations, Video Encoding Formats, and Transcoding.
This vulnerability is documented in Cisco Bug ID CSCto73758 (registered customers only) and has been assigned CVE identifier CVE-2011-2584.
- Cisco Show and Share arbitrary code execution vulnerability
An authenticated user with privileges to upload videos could upload code that could then be executed under the privileges of the web server.
Note: The web server runs as a non-root user. Details regarding the impact of accessing each one of these administrative pages are included in the Impact section of this Cisco Security Advisory.
This vulnerability is documented in Cisco Bug ID CSCto69857 (registered customers only) and has been assigned CVE identifier CVE-2011-2585.
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There are no workarounds for these vulnerabilities.
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When considering software upgrades, also consult http://www.cisco.com/go/psirt and any subsequent advisories to determine exposure and a complete upgrade solution.
In all cases, customers should exercise caution to be certain the devices to be upgraded contain sufficient memory and that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, contact the Cisco Technical Assistance Center (TAC) or your contracted maintenance provider for assistance.
Each row of the software table (below) names a Cisco SnS release train. If a given release train is vulnerable, then the earliest possible releases that contains the fix (along with the anticipated date of availability for each, if applicable) are listed in the "First Fixed Release" column of the table. The "Recommended Release" column indicates the releases which have fixes for all the published vulnerabilities at the time of this Advisory. A device running a release in the given train that is earlier than the release in a specific column (less than the First Fixed Release) is known to be vulnerable. Cisco recommends upgrading to a release equal to or later than the release in the "Recommended Releases" column of the table.
Each row of the software table (below) names a Cisco Show and Share release train. If a given release train is vulnerable, then the earliest possible releases that contains the fix are listed in the "First Fixed Release" column of the table. A device running a release in the given train that is earlier than the "First Fixed Release" is known to be vulnerable. Cisco recommends upgrading to a release equal to or later than the release in the "First Fixed Release" column of the table.
WARNING: Please read the release notes on Cisco Show and Share version 5.2(3) regarding MCS Server Appliance support.
The following MCS Server Appliances are not supported in Cisco Show and Share version 5.2(3), and administrators should use a recommended release of 5.2(2.1) or later:
- MCS 7825-H2
- MCS 7825-H3
- MCS 7835-H1
- MCS 7835-H2
For further information for support MCS Server Appliances consult the release notes for Cisco Digital Media Suite 5.2.x at the following link: http://www.cisco.com/en/US/docs/video/digital_media_systems/5_x/5_2/dms/release/notes/dms52rn.html#wp232018
Cisco Show and Share Release First Fixed Release 5(2) Vulnerable; migrate to 5.2(2.1) 5.2(1) Vulnerable; migrate to 5.2(2.1) 5.2(2) 5.2(2.1) 5.2(3) Not Vulnerable Note: Read the WARNING provided above regarding Cisco Show and Share version 5.2(3).
Cisco Show and Share software upgrades, can be download from: http://www.cisco.com/cisco/software/type.html?mdfid=280171242&catid=268438145
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The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability described in this advisory.
These vulnerabilities were discovered and reported to Cisco Systems by Andy Yang and Mehdi Kiani of stratsec.
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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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Show LessRevision 1.0
2011-October-19
Initial public release.
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