CVE-2020-3571 : A vulnerability in the ICMP ingress packet processing of Cisco Firepower Threat

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.

Published 2020-10-21 19:15:18

Updated 2021-10-19 14:49:39

Source Cisco Systems, Inc.

View at NVD, CVE.org

Vulnerability category: Input validationDenial of service

Products affected by CVE-2020-3571

Cisco » Firepower Threat Defense
Versions from including (>=) 6.5.0 and before (<) 6.5.0.5
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Firepower 4110 » Version: N/A
When used together with: Cisco » Firepower 4112 » Version: N/A
When used together with: Cisco » Firepower 4115 » Version: N/A
When used together with: Cisco » Firepower 4120 » Version: N/A
When used together with: Cisco » Firepower 4125 » Version: N/A
When used together with: Cisco » Firepower 4140 » Version: N/A
When used together with: Cisco » Firepower 4145 » Version: N/A
When used together with: Cisco » Firepower 4150 » Version: N/A
Cisco » Firepower Threat Defense
Versions from including (>=) 6.4.0 and before (<) 6.4.0.10
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Firepower 4110 » Version: N/A
When used together with: Cisco » Firepower 4112 » Version: N/A
When used together with: Cisco » Firepower 4115 » Version: N/A
When used together with: Cisco » Firepower 4120 » Version: N/A
When used together with: Cisco » Firepower 4125 » Version: N/A
When used together with: Cisco » Firepower 4140 » Version: N/A
When used together with: Cisco » Firepower 4145 » Version: N/A
When used together with: Cisco » Firepower 4150 » Version: N/A
Cisco » Firepower Threat Defense
Versions from including (>=) 6.3.0 and before (<) 6.3.0.6
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » Firepower 4110 » Version: N/A
When used together with: Cisco » Firepower 4112 » Version: N/A
When used together with: Cisco » Firepower 4115 » Version: N/A
When used together with: Cisco » Firepower 4120 » Version: N/A
When used together with: Cisco » Firepower 4125 » Version: N/A
When used together with: Cisco » Firepower 4140 » Version: N/A
When used together with: Cisco » Firepower 4145 » Version: N/A
When used together with: Cisco » Firepower 4150 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2020-3571

EPSS FAQ

0.16%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 52 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-3571

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.8	HIGH	AV:N/AC:L/Au:N/C:N/I:N/A:C	10.0	6.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Complete
8.6	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H	3.9	4.0	Cisco Systems, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Changed Confidentiality: None Integrity: None Availability: High
8.6	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H	3.9	4.0	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Changed Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2020-3571

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Assigned by: nvd@nist.gov (Primary)
CWE-400 Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

Assigned by: ykramarz@cisco.com (Secondary)

References for CVE-2020-3571

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-icmp-dos-hxxcycM

Cisco Firepower 4110 ICMP Flood Denial of Service Vulnerability
Vendor Advisory

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Vulnerability Details : CVE-2020-3571

Products affected by CVE-2020-3571

Exploit prediction scoring system (EPSS) score for CVE-2020-3571

CVSS scores for CVE-2020-3571

CWE ids for CVE-2020-3571

References for CVE-2020-3571