Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Remote Code Execution Vulnerability

A vulnerability in the implementation of the Lua interpreter integrated in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to execute arbitrary code with root privileges on the underlying Linux operating system of an affected device.

The vulnerability is due to insufficient restrictions on the allowed Lua function calls within the context of user-supplied Lua scripts. A successful exploit could allow the attacker to trigger a heap overflow condition and execute arbitrary code with root privileges on the underlying Linux operating system of an affected device.

Cisco has not released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191112-asa-ftd-lua-rce

Security Impact Rating: High

CVE: CVE-2019-15992

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Firewall rules “host” logic

I need a solution

Hello.

I’ve already found https://support.symantec.com/us/en/article.howto80715.html , but still have small question left.

I want to create firewall rule, which will allow specific traffic only if (local IP) and (local MAC) will match specific values.

Following mentioned article, “The hosts that you define on either side of the connection (between the source and the destination)” use OR condition, and “Selected hosts” use AND condition.

That’s fine to understand if we are talking about matching only IP-addresses, for example (we take any IP from “Local” block, any IP from “Remote” block, and connect them with AND statement).

But, in my case, both my conditions (local IP and local MAC) are on the same side – does it mean, that only “OR” is possible? Any way I can connect both this rules with “AND”?

0

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