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Cisco ASA Message Authentication Code Vulnerability (Cisco-SA-20150714-CVE-2015-4458)

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CVSSv3 Score
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Vulnerability description

Cisco ASA is prone to a Message Authentication Code checking vulnerability.

Risk description

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. A successful exploit could be used to conduct further attacks.


See the referenced vendor advisory for a solution.

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Detectable with
Network Scanner
Scan engine
Exploitable with Sniper
CVE Published
Not available
Detection added at
Software Type
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