A vulnerability in Cisco Unified Computing System software KVM client could allow an unauthenticated, remote attacker to perform a man-in-the-middle attack. The vulnerability is due to improper certificate validation by the KVM client. An attacker could exploit this vulnerability by intercepting a KVM connection. A successful exploit could allow the attacker to view or modify KVM data. Cisco has confirmed the vulnerability in a security notice and released software updates. To exploit this vulnerability, an attacker must be in a position to present a crafted certificate to the targeted device, which may reside on trusted, internal networks. As a result, the location of the targeted device may reduce 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.
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.
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.
| Version | Description | Section | Status | Date |
| 1.0 | Initial Release | NA | Final | 2013-Sep-18 |
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