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Cisco Email Security Appliance MIME Header Processing Filter Bypass Vulnerability

Information

Severity

Severity

Medium

Family

Family

CISCO

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Solution Type

Solution Type

Vendor Patch

Created

Created

5 years ago

Modified

Modified

3 years ago

Summary

A vulnerability in the email filtering functionality of Cisco AsyncOS Software for Cisco Email Security Appliances could allow an unauthenticated, remote attacker to bypass Advanced Malware Protection (AMP) filters that are configured for an affected device.

Insight

Insight

The vulnerability is due to improper error handling when malformed Multipurpose Internet Mail Extensions (MIME) headers are present in an email attachment that is sent through an affected device. An attacker could exploit this vulnerability by sending an email message that has a crafted, MIME-encoded file attachment through an affected device.

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

Update to 9.7.2-131, 10.0.0-203 or later.

Common Vulnerabilities and Exposures (CVE)