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CVE-2020-3571

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
21/10/2020
Last modified:
19/10/2021

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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.60 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
8.60
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
7.80
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* 6.3.0 (including) 6.3.0.6 (excluding)
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* 6.4.0 (including) 6.4.0.10 (excluding)
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* 6.5.0 (including) 6.5.0.5 (excluding)
cpe:2.3:h:cisco:firepower_4110:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4112:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4115:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4120:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4125:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4140:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4145:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_4150:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools