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AUSCERT External Security Bulletin Redistribution
ESB-2016.2764
Cisco Firepower System Software FTP Malware Vulnerability
21 November 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Firepower
Publisher: Cisco Systems
Operating System: Cisco
Virtualisation
Impact/Access: Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2016-6460
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161116-fss
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Cisco Security Advisory
Cisco Firepower System Software FTP Malware Vulnerability
Medium
Advisory ID: cisco-sa-20161116-fss
First Published: 2016 November 16 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs:
CSCuv36188
CSCuy91156
CVSS Score:
Base 5.0, Temporal 4.1
Base 5.0, Temporal 4.1 AV:N/AC:L/Au:N/C:N/I:P/A:N/E:F/RL:OF/RC:C
CVE-2016-6460
CWE-16
Summary
A vulnerability in the FTP Representational State Transfer Application
Programming Interface (REST API) for Cisco Firepower System Software could
allow an unauthenticated, remote attacker to bypass FTP malware detection
rules and download malware over an FTP connection.
The vulnerability is due to a lack of continuity between the FTP control and
data connection when the malware is detected. An attacker could exploit this
vulnerability by repeatedly attempting to download FTP malware. An exploit
could allow the attacker to bypass the configured FTP malware blocking rules.
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-20161116-fss
Affected Products
Vulnerable Products
Cisco Firepower System Software is affected when the device has a file policy
with malware block configured for FTP connections.
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-20161116-fss
Revision History
Version Description Section Status Date
1.0 Initial public release. Final 2016-November-16
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.
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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