Cisco Security Advisory
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AV:N/AC:H/Au:N/C:P/I:P/A:P/E:F/RL:OF/RC:C
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A vulnerability in the initial setup script of Cisco Unified Computing System fabric interconnect (FI) devices could allow an unauthenticated, remote attacker to execute arbitrary commands on the underlying operating system.
The vulnerability is due to unfiltered input in the cluster initial configuration script. An attacker could exploit this vulnerability by entering invalid parameters during initial setup. A successful exploit could allow the attacker to execute arbitrary commands with the privileges of the daemon user.
Cisco has confirmed the vulnerability in a security notice and has released software updates.
To exploit this vulnerability, an attacker may require access to trusted, internal networks to send crafted requests to the affected software. This access requirement could limit the likelihood of a successful exploit.
This issue can be exploited only during the initial setup and configuration of a clustered Unified Computing System fabric interconnect device. An attacker would need to be on the same private subnet that the device uses for configuration during the short configuration period in which the device performs its initial configuration.
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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Customers should refer to Cisco bug ID CSCtg20793 for a complete list of affected product versions.
Vulnerable Products
At the time this alert was first published, Cisco Unified Computing System versions 1.0 through 1.4 were vulnerable. Later releases of Cisco Unified Computing System may also be vulnerable.Products Confirmed Not Vulnerable
No other Cisco products are currently known to be affected by these vulnerabilities.
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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 may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.
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 email 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 2013-Sep-24
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