Vulnerability identifier: #VU27687

Vulnerability risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-3334

CWE-ID: CWE-399

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Cisco Adaptive Security Appliance (ASA)
Hardware solutions / Security hardware applicances
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 incorrect processing of ARP packets received by the management interface. A remote attacker on the local network can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Note: This vulnerability affects Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series Security Appliances.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco Adaptive Security Appliance (ASA): All versions

Cisco Firepower Threat Defense (FTD):

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fp2100-arp-dos-kLdCK8ks

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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 local network (LAN).

Is there known malware, which exploits this vulnerability?

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