Cisco Security Advisory
Cisco Show and Share File Upload Arbitrary Code Execution Vulnerability
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AV:N/AC:L/Au:S/C:P/I:P/A:P/E:F/RL:OF/RC:C
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Cisco Show and Share contains a vulnerability that could allow an authenticated, remote attacker to execute code on a vulnerable device.
The vulnerability is due to insecure restrictions when allowing videos to be uploaded to an affected device. An authenticated, remote attacker with privileges to upload videos could take advantage of this vulnerability to upload code to the device that would execute in the context of the web server.
Cisco has confirmed this vulnerability in a security advisory and has released updated software.
The attacker may need access to an internal, private network and would need valid login credentials to be able to upload files to the vulnerable device. These factors could limit the potential for a possible attempted exploit.
It should be noted that the uploaded code would execute in the context of the web server. This service runs with non-root privileges. This factor could limit the severity of the impact of a successful exploit.
Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
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Cisco has released a security advisory for Cisco bug ID CSCto69857 at the following link: cisco-sa-20111019-sns
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Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to have network access.
Administrators are advised to monitor affected systems.
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Cisco customers with active contracts can obtain updates through the Software Center at the following link: Cisco. Cisco customers without contracts can obtain upgrades by contacting the Cisco Technical Assistance Center at 1-800-553-2447 or 1-408-526-7209 or via e-mail at tac@cisco.com.
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The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
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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 LessVersion Description Section Status Date 1.0 Initial Release NA Final 2011-Oct-19
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