Vulnerability · Published Oct 21, 2020 · Assigned by cisco

CVE-2020-3571Cisco Firepower 4110 ICMP Flood Denial of Service Vulnerability

High 8.6

In plain English

A high-severity uncontrolled resource consumption in Cisco Firepower Threat Defense Software from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 72% of all known vulnerabilities).

Severity (CVSS 3.0)8.6High

Exploit odds (30 days)1.4%top 27.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

A vulnerability in the ICMP ingress packet processing of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 4110 appliances could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to incomplete input validation upon receiving ICMP packets. An attacker could exploit this vulnerability by sending a high number of crafted ICMP or ICMPv6 packets to an affected device. A successful exploit could allow the attacker to cause a memory exhaustion condition that may result in an unexpected reload. No manual intervention is needed to recover the device after the reload.

Affected products (as reported)

Vendor	Product	Versions
Cisco	Cisco Firepower Threat Defense Software	n/a

Weakness: CWE-400 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

References

20201021 Cisco Firepower 4110 ICMP Flood Denial of Service Vulnerability vendor-advisory, x_refsource_CISCO