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Cisco Email Security Appliance RAR File Attachment Scanner Bypass Vulnerability
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
A vulnerability in the content filtering functionality of Cisco AsyncOS Software for Cisco Email Security Appliances could allow an unauthenticated, remote attacker to bypass content filters configured on an affected device. Email that should have been filtered could instead be forwarded by the device.
Insight
Insight
The vulnerability is due to incorrect validation of protected or encrypted email attachments that are Roshal Archive (RAR) format files. An attacker could exploit this vulnerability by sending an email message that has a crafted RAR file attachment through an affected device.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
See the referenced vendor advisory for a solution.