Cisco Security Advisory
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AV:N/AC:M/Au:N/C:N/I:P/A:N/E:F/RL:OF/RC:C
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A vulnerability in the Cisco Unified Computing System Serial over LAN (SoL) implementation could allow an unauthenticated, remote attacker to perform a man-in-the-middle (MITM) attack.
The vulnerability occurs because the Board Management Controller (BMC) uses a hard-coded private key. An attacker could exploit this vulnerability by intercepting an SoL connection. A successful exploit could allow the attacker to view or modify SoL communications.
Cisco has confirmed the vulnerability in a security notice and released software updates.
To exploit this vulnerability, it is likely that an attacker would need access to trusted, internal networks in which the targeted device may reside to intercept SoL communications. This access requirement limits the likelihood 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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Customers are advised to consult Cisco bug ID CSCte90338 for a complete list of affected product versions.
Vulnerable Products
At the time this alert was first published, Cisco Unified Computing System Software versions 1.3 and prior were vulnerable. Later releases of Cisco Unified Computing System Software 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 should contact their Cisco support team for assistance in upgrading to a software version that includes fixes for this vulnerability. Cisco customers without contracts may contact the Cisco Technical Assistance Center at 1-800-553-2447 or 1-408-526-7209 or via email at tac@cisco.com for assistance.
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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-18
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