AV:N/AC:L/Au:N/C:N/I:N/A:P/E:F/RL:OF/RC:C
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Cisco Unified Computing System contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on a targeted system.
The vulnerability is due to the improper handling of user-supplied SSH requests by affected software. An unauthenticated, remote attacker can exploit this vulnerability by transmitting a crafted SSH request to the software. Successful exploitation could allow an attacker to cause the abnormal termination of the application, resulting in a DoS condition.
Cisco has confirmed this vulnerability and released software updates.
To successfully exploit this vulnerability, an attacker would need access to an internal, private network to submit crafted SSH requests. This access requirement decreases the likelihood of a successful exploit.
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Cisco has issued release notes for Cisco bug ID CSCtt94543 at the following link: Release Notes for Cisco UCS Software
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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 critical 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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Version Description Section Status Date 1.0 Initial Release NA Final 2012-Aug-10
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