Vulnerabilities > CVE-2022-20854 - Improper Handling of Exceptional Conditions vulnerability in Cisco Secure Firewall Management Center

CVSS 7.5 - HIGH

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

NONE

Integrity impact

NONE

Availability impact

HIGH

network

low complexity

cisco

CWE-755

NVD

Published: 2022-11-15

Updated: 2024-11-26

Summary

A vulnerability in the processing of SSH connections of Cisco Firepower Management Center (FMC) and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper error handling when an SSH session fails to be established. An attacker could exploit this vulnerability by sending a high rate of crafted SSH connections to the instance. A successful exploit could allow the attacker to cause resource exhaustion, resulting in a reboot on the affected device.

Vulnerable Configurations

Part	Description	Count
Application	Cisco Cisco Secure Firewall Management Center 7.0.4 Cisco Secure Firewall Management Center 7.0.3 Cisco Secure Firewall Management Center 7.0.2.1 Cisco Secure Firewall Management Center 7.0.2 Cisco Secure Firewall Management Center 7.0.1.1 Cisco Secure Firewall Management Center 7.0.1 Cisco Secure Firewall Management Center 6.6.0.1 Cisco Secure Firewall Management Center 6.6.0 Cisco Secure Firewall Management Center 7.0.0 Cisco Secure Firewall Management Center 6.6.3 Cisco Secure Firewall Management Center 6.6.4 Cisco Secure Firewall Management Center 6.6.5 Cisco Secure Firewall Management Center 6.6.5.1 Cisco Secure Firewall Management Center 6.6.5.2 Cisco Secure Firewall Management Center 6.6.1 Cisco Secure Firewall Management Center 6.2.3 Cisco Secure Firewall Management Center 6.2.3.1 Cisco Secure Firewall Management Center 6.2.3.2 Cisco Secure Firewall Management Center 6.2.3.3 Cisco Secure Firewall Management Center 6.2.3.4 Cisco Secure Firewall Management Center 6.2.3.5 Cisco Secure Firewall Management Center 6.2.3.6 Cisco Secure Firewall Management Center 6.2.3.7 Cisco Secure Firewall Management Center 6.2.3.8 Cisco Secure Firewall Management Center 6.2.3.9 Cisco Secure Firewall Management Center 6.2.3.10 Cisco Secure Firewall Management Center 6.2.3.11 Cisco Secure Firewall Management Center 6.2.3.12 Cisco Secure Firewall Management Center 6.2.3.13 Cisco Secure Firewall Management Center 6.2.3.14 Cisco Secure Firewall Management Center 6.2.3.15 Cisco Secure Firewall Management Center 6.2.3.16 Cisco Secure Firewall Management Center 6.2.3.17 Cisco Secure Firewall Management Center 6.2.3.18 Cisco Secure Firewall Management Center 6.2.0 Cisco Secure Firewall Management Center 6.2.0.1 Cisco Secure Firewall Management Center 6.2.0.2 Cisco Secure Firewall Management Center 6.2.0.3 Cisco Secure Firewall Management Center 6.2.0.4 Cisco Secure Firewall Management Center 6.2.0.5 Cisco Secure Firewall Management Center 6.2.0.6 Cisco Secure Firewall Management Center 7.0.0.1 Cisco Secure Firewall Management Center 6.2.1 Cisco Secure Firewall Management Center 6.3.0 Cisco Secure Firewall Management Center 6.3.0.1 Cisco Secure Firewall Management Center 6.3.0.2 Cisco Secure Firewall Management Center 6.3.0.3 Cisco Secure Firewall Management Center 6.3.0.4 Cisco Secure Firewall Management Center 6.3.0.5 Cisco Secure Firewall Management Center 6.7.0 Cisco Secure Firewall Management Center 6.7.0.1 Cisco Secure Firewall Management Center 6.7.0.2 Cisco Secure Firewall Management Center 6.7.0.3 Cisco Secure Firewall Management Center 6.5.0 Cisco Secure Firewall Management Center 6.5.0.1 Cisco Secure Firewall Management Center 6.5.0.2 Cisco Secure Firewall Management Center 6.5.0.3 Cisco Secure Firewall Management Center 6.5.0.4 Cisco Secure Firewall Management Center 6.5.0.5 Cisco Secure Firewall Management Center 6.4.0 Cisco Secure Firewall Management Center 6.4.0.1 Cisco Secure Firewall Management Center 6.4.0.2 Cisco Secure Firewall Management Center 6.4.0.3 Cisco Secure Firewall Management Center 6.4.0.4 Cisco Secure Firewall Management Center 6.4.0.5 Cisco Secure Firewall Management Center 6.4.0.6 Cisco Secure Firewall Management Center 6.4.0.7 Cisco Secure Firewall Management Center 6.4.0.8 Cisco Secure Firewall Management Center 6.4.0.9 Cisco Secure Firewall Management Center 6.4.0.10 Cisco Secure Firewall Management Center 6.4.0.11 Cisco Secure Firewall Management Center 6.4.0.12 Cisco Secure Firewall Management Center 6.4.0.13 Cisco Secure Firewall Management Center 6.4.0.14 Cisco Secure Firewall Management Center 6.4.0.15 Cisco Secure Firewall Management Center 6.1.0 Cisco Secure Firewall Management Center 6.1.0.1 Cisco Secure Firewall Management Center 6.1.0.2 Cisco Secure Firewall Management Center 6.1.0.3 Cisco Secure Firewall Management Center 6.1.0.4 Cisco Secure Firewall Management Center 6.1.0.5 Cisco Secure Firewall Management Center 6.1.0.6 Cisco Secure Firewall Management Center 6.1.0.7 Cisco Secure Firewall Management Center 6.2.2 Cisco Secure Firewall Management Center 6.2.2.1 Cisco Secure Firewall Management Center 6.2.2.2 Cisco Secure Firewall Management Center 6.2.2.3 Cisco Secure Firewall Management Center 6.2.2.4 Cisco Secure Firewall Management Center 6.2.2.5 Cisco Firepower Threat Defense 6.2.1 Cisco Firepower Threat Defense 6.6.0.1 Cisco Firepower Threat Defense 6.6.0 Cisco Firepower Threat Defense 7.0.0 Cisco Firepower Threat Defense 6.1.0 Cisco Firepower Threat Defense 6.1.0.1 Cisco Firepower Threat Defense 6.1.0.2 Cisco Firepower Threat Defense 6.1.0.3 Cisco Firepower Threat Defense 6.1.0.4 Cisco Firepower Threat Defense 6.1.0.5 Cisco Firepower Threat Defense 6.1.0.6 Cisco Firepower Threat Defense 7.0.1 Cisco Firepower Threat Defense 7.0.0.1 Cisco Firepower Threat Defense 7.0.1.1 Cisco Firepower Threat Defense 7.0.2 Cisco Firepower Threat Defense 7.0.2.1 Cisco Firepower Threat Defense 7.0.3 Cisco Firepower Threat Defense 7.0.4 Cisco Firepower Threat Defense 6.7.0 Cisco Firepower Threat Defense 6.7.0.1 Cisco Firepower Threat Defense 6.7.0.2 Cisco Firepower Threat Defense 6.5.0 Cisco Firepower Threat Defense 6.5.0.1 Cisco Firepower Threat Defense 6.5.0.2 Cisco Firepower Threat Defense 6.5.0.3 Cisco Firepower Threat Defense 6.5.0.4 Cisco Firepower Threat Defense 6.5.0.5 Cisco Firepower Threat Defense 6.4.0 Cisco Firepower Threat Defense 6.4.0.1 Cisco Firepower Threat Defense 6.4.0.2 Cisco Firepower Threat Defense 6.4.0.3 Cisco Firepower Threat Defense 6.4.0.4 Cisco Firepower Threat Defense 6.4.0.5 Cisco Firepower Threat Defense 6.4.0.6 Cisco Firepower Threat Defense 6.4.0.7 Cisco Firepower Threat Defense 6.4.0.8 Cisco Firepower Threat Defense 6.4.0.9 Cisco Firepower Threat Defense 6.4.0.10 Cisco Firepower Threat Defense 6.4.0.11 Cisco Firepower Threat Defense 6.4.0.12 Cisco Firepower Threat Defense 6.4.0.13 Cisco Firepower Threat Defense 6.4.0.14 Cisco Firepower Threat Defense 6.4.0.15 Cisco Firepower Threat Defense 6.3.0 Cisco Firepower Threat Defense 6.3.0.1 Cisco Firepower Threat Defense 6.3.0.2 Cisco Firepower Threat Defense 6.3.0.3 Cisco Firepower Threat Defense 6.3.0.4 Cisco Firepower Threat Defense 6.3.0.5 Cisco Firepower Threat Defense 6.6.1 Cisco Firepower Threat Defense 6.6.3 Cisco Firepower Threat Defense 6.6.4 Cisco Firepower Threat Defense 6.6.5 Cisco Firepower Threat Defense 6.6.5.1 Cisco Firepower Threat Defense 6.6.5.2 Cisco Firepower Threat Defense 6.2.3 Cisco Firepower Threat Defense 6.2.3.0 Cisco Firepower Threat Defense 6.2.3.1 Cisco Firepower Threat Defense 6.2.3.2 Cisco Firepower Threat Defense 6.2.3.3 Cisco Firepower Threat Defense 6.2.3.4 Cisco Firepower Threat Defense 6.2.3.5 Cisco Firepower Threat Defense 6.2.3.6 Cisco Firepower Threat Defense 6.2.3.7 Cisco Firepower Threat Defense 6.2.3.8 Cisco Firepower Threat Defense 6.2.3.9 Cisco Firepower Threat Defense 6.2.3.10 Cisco Firepower Threat Defense 6.2.3.11 Cisco Firepower Threat Defense 6.2.3.12 Cisco Firepower Threat Defense 6.2.3.13 Cisco Firepower Threat Defense 6.2.3.14 Cisco Firepower Threat Defense 6.2.3.15 Cisco Firepower Threat Defense 6.2.3.16 Cisco Firepower Threat Defense 6.2.3.17 Cisco Firepower Threat Defense 6.2.3.18 Cisco Firepower Threat Defense 6.2.0 Cisco Firepower Threat Defense 6.2.0.1 Cisco Firepower Threat Defense 6.2.0.2 Cisco Firepower Threat Defense 6.2.0.3 Cisco Firepower Threat Defense 6.2.0.4 Cisco Firepower Threat Defense 6.2.0.5 Cisco Firepower Threat Defense 6.2.2 Cisco Firepower Threat Defense 6.2.2.1 Cisco Firepower Threat Defense 6.2.2.2 Cisco Firepower Threat Defense 6.2.2.3 Cisco Firepower Threat Defense 6.2.2.4 Cisco Firepower Threat Defense 6.2.2.5	176

Common Weakness Enumeration (CWE)

CWE-755 - Improper Handling of Exceptional Conditions

Summary

Vulnerable Configurations

Common Weakness Enumeration (CWE)

References