Vulnerability identifier: #VU27591

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-3186

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Firepower Threat Defense (FTD)
Hardware solutions / Security hardware applicances

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to the configuration of different management access lists, with ports allowed in one access list and denied in another. A remote attacker can send specially crafted remote management traffic to the local IP address and bypass a configured management interface access list on an affected system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco Firepower Threat Defense (FTD): 6.3.0, 6.4.0, 6.5.0

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-accesslist-bypass-5dZs5qZp

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.