漏洞类别:Cisco
漏洞等级:
漏洞信息
A vulnerability in the Multipurpose Internet Mail Extensions (MIME) scanner of Cisco AsyncOS Software for Cisco Email Security Appliances (ESA) and Web Security Appliances (WSA) could allow an unauthenticated, remote attacker to bypass configured user filters on the device.
The vulnerability is due to improper error handling of a malformed MIME header in an email attachment.
漏洞危害
An attacker could exploit this vulnerability by sending an email with a crafted MIME attachment. For example, a successful exploit could allow the attacker to bypass configured user filters to prevent executable files from being opened. The malformed MIME headers may not be RFC compliant but some mail clients could still allow users to access the attachment, which may not have been properly filtered by the device.
解决方案
Refer to Cisco advisory cisco-sa-20161026-esawsa1 for updates and patch information.
Patch:
Following are links for downloading patches to fix the vulnerabilities:
0day
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