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AUSCERT External Security Bulletin Redistribution
Cisco Unified Computing System Command Line Interface
Privilege Escalation Vulnerability
15 September 2016
AusCERT Security Bulletin Summary
Product: Cisco Unified Computing System
Operating System: Cisco
Impact/Access: Root Compromise -- Existing Account
CVE Names: CVE-2016-6402
Comment: There are currently no patches available. AusCERT recommends
administrators consider risk reduction strategies such as reviewing
user access to the device and disabling old accounts where possible.
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Cisco Unified Computing System Command Line Interface Privilege Escalation
2016 September 14 16:00 GMT
No workarounds available
Cisco Bug IDs:
Base 6.8, Temporal 6.5
A vulnerability in the command-line interface (CLI) of the Cisco Unified
Computing System (UCS) Manager and UCS 6200 Series Fabric Interconnects could
allow an authenticated, local attacker to access the underlying operating
system with the privileges of the root user.
The vulnerability is due to insufficient sanitization of user-supplied input
at the CLI. An attacker could exploit this vulnerability by bypassing policy
restrictions and executing commands on the underlying operating system. The
user needs to log in to the device with valid user credentials to exploit this
Cisco has not released software updates that address this vulnerability.
Workarounds that mitigate this vulnerability are not available.
This advisory is available at the following link:
Cisco Unified Computing System (UCS) Manager and Cisco UCS 6200 Series Fabric
Interconnects are affected.
Products Confirmed Not Vulnerable
No other Cisco products are currently known to be affected by this
There are no workarounds that address this vulnerability.
Cisco provides information about fixed software in Cisco bugs, which are
accessible through the Cisco Bug Search Tool.
When considering software upgrades, customers are advised to consult the Cisco
Security Advisories and Responses archive at http://www.cisco.com/go/psirt and
review subsequent advisories to determine exposure and a complete upgrade
In all cases, customers should ensure that the devices to be upgraded contain
sufficient memory and confirm that current hardware and software
configurations will continue to be supported properly by the new release. If
the information is not clear, customers are advised to contact the Cisco
Technical Assistance Center (TAC) or their contracted maintenance providers.
Exploitation and Public Announcements
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.
Version Description Section Status Date
1.0 Initial public release - Final 2016-September-14
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF
GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS
LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO
CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
A standalone copy or paraphrase of the text of this document that omits the
distribution URL is an uncontrolled copy and may lack important information or
contain factual errors. The information in this document is intended for end
users of Cisco products.
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