Date: 15 February 2016
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AUSCERT External Security Bulletin Redistribution
Cisco Advanced Malware Protection and Email Security
Appliance Proxy Engine Security Bypass Vulnerability
15 February 2016
AusCERT Security Bulletin Summary
Product: Cisco Advanced Malware Protection
Cisco Email Security Appliance
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Unauthorised Access -- Remote/Unauthenticated
CVE Names: CVE-2016-1315
Comment: AusCERT recommends administrators limit external network access to the
Revision History: February 15 2016: Corrected resolution and added workaround details
February 15 2016: Initial Release
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Cisco Advanced Malware Protection and Email Security Appliance Proxy Engine
Security Bypass Vulnerability
2016 February 11 14:27 GMT
Base - 5.0
No workarounds available
Cisco Bug IDs:
A vulnerability in the proxy engine of the Cisco Advanced Malware Protection
(AMP) and the Cisco Email Security Appliance (ESA) could allow an
unauthenticated, remote attacker to bypass security restrictions.
The vulnerability is due to improper handling of malformed file methods. An
attacker could exploit this vulnerability by encoding files within an email
message. An exploit could allow the attacker to circumvent the AMPs or ESAs
ability to prevent encoded files.
Cisco has not released software updates that address this vulnerability.
Workarounds that address this vulnerability are not available.
This advisory is available at the following link:
Cisco AMP is vulnerable when running on Cisco ESA releases 9.5.0-201,
9.6.0-051, and 9.7.0-125.
Products Confirmed Not Vulnerable
No other Cisco products are currently known to be affected by this
Workarounds are not available.
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-February-11
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF
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FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS
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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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