20 December 2016
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== 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 =========================================================================== 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 - --------------------------BEGIN INCLUDED TEXT-------------------- 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. Ã¢Â€Â” 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. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: firstname.lastname@example.org Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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