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AUSCERT External Security Bulletin Redistribution
ESB-2016.3036
Cisco Firepower Management Center and Cisco FireSIGHT System Software
Malicious Software Detection Bypass Vulnerability
20 December 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Firepower Management Center
Cisco FireSIGHT System Software
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Unauthorised Access -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2016-9193
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161207-ios-xe-x509
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Cisco Firepower Management Center and Cisco FireSIGHT System Software
Malicious Software Detection Bypass Vulnerability
Medium
Advisory ID: cisco-sa-20161207-firepower
First Published: 2016 December 7 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvb27494
CVSS Score: Base 5.0, Temporal 4.1
CVE-2016-9193
CWE-20
Summary
A vulnerability in the malicious file detection and blocking features of
Cisco Firepower Management Center and Cisco FireSIGHT System Software could
allow an unauthenticated, remote attacker to bypass malware detection
mechanisms on an affected system.
The vulnerability is due to the incorrect handling of duplicate downloads
of malware files. An attacker could exploit this vulnerability by sending an
attempt to download a file that contains malware to an affected system. A
successful exploit could allow the attacker to bypass malicious file detection
or blocking policies that are configured for the system, which could allow
malware to pass through the system undetected.
There are no workarounds that address this vulnerability.
This advisory is available at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161207-firepower
Affected Products
Vulnerable Products Cisco Firepower Management Center and FireSIGHT System
Software are affected when they are configured to use a file policy that has
the Block Malware action. For information about affected software releases,
consult the Cisco bug ID(s) at the top of this advisory. Products Confirmed
Not Vulnerable No other Cisco products are currently known to be affected by
this vulnerability.
Workarounds
There are no workarounds that address this vulnerability.
Fixed Software
For information about fixed software releases, consult the Cisco bug ID(s)
at the top of this advisory.
When considering software upgrades, customers are advised to regularly
consult the advisories for Cisco products, which are available from the Cisco
Security Advisories and Alerts page, to determine exposure and a complete
upgrade solution.
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.
URL
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161207-firepower
Revision History
Version Description Section Status Date
1.0 Initial public release. — Final 2016-December-07
Legal Disclaimer
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.
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