Cisco Security Advisory
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AV:N/AC:L/Au:N/C:P/I:N/A:N/E:F/RL:U/RC:C
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A vulnerability in the Intelligent Platform Management Interface (IPMI) of the Cisco Unified Computing System Blade Management Controller could allow an unauthenticated, remote attacker to discover valid usernames.
The vulnerability is due to a requirement defined in the IPMI specification. An attacker could exploit this vulnerability by enumerating a list of usernames. A successful exploit could allow the attacker to determine valid usernames based on the responses provided by the IPMI interface.
Cisco has confirmed the vulnerability in a security notice; however, software updates are not available.
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 are advised to consult Cisco bug ID CSCtg20761 for the most complete list of affected product versions.
Vulnerable Products
At the time this alert was first published, Cisco Unified Computing System versions 2.2 and prior 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 contact the vendor regarding future updates and releases.
Administrators are advised to allow only trusted users to have network access.
Administrators are advised to monitor affected systems.
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Software updates are not available.
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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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