Vulnerability identifier: #VU27586

Vulnerability risk: Medium

CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:U/RC:C]

CVE-ID: CVE-2020-3188

CWE-ID: CWE-399

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 perform a denial of service (DoS) attack.

The vulnerability exists due to the default session timeout period for specific to-the-box remote management connections is too long. A remote attacker can send a large and sustained number of crafted remote management connections and perform a denial of service (DoS) attack.

Mitigation
Vendor recommends to update the Cisco FTD Software Release to version 6.4.0.9, scheduled for May 2020 and Release 6.5.0.5.

Vulnerable software versions

Cisco Firepower Threat Defense (FTD): 6.1.0, 6.2.2, 6.2.3, 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-mgmt-interface-dos-FkG4MuTU

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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.