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Cisco ASA Message Authentication Code Vulnerability
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Cisco ASA is prone to a Message Authentication Code checking vulnerability.
Insight
Insight
The vulnerability is due to an error on the firmware of the Cavium Networks cryptographic module. Due to this vulnerability, the message authentication code (MAC) on a TLS packet is not being checked. An attacker could exploit this vulnerability by intercepting encrypted packets in transit and modifying their contents. Such packets would be decrypted by the ASA, but the modification would not be detected.
Affected Software
Affected Software
Version 9.1
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Apply the appropriate updates from Cisco.