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Cisco Firepower Management Center and Firepower Threat Defense Software SSH Denial of Service Vulnerability

cisco-sa-fmc-dos-OwEunWJN · High · Published · Updated

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. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-dos-OwEunWJN This advisory is part of the November 2022 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication. For a complete list of the advisories and links to them, see Cisco Event Response: November 2022 Semiannual Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication.

Cisco advisory ·CSAF JSON

Workarounds

There are no workarounds that address this vulnerability.

CVEsCVE-2022-20854
Cisco Bug IDsCSCvy95520
CVSS ScoreBase 7.5
Base 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:X/RL:X/RC:X
Product Names From Source
Cisco Secure Firewall Management Center (FMC) 6.2.3, Cisco Secure Firewall Management Center (FMC) 6.2.3.1, Cisco Secure Firewall Management Center (FMC) 6.2.3.2, Cisco Secure Firewall Management Center (FMC) 6.2.3.3, Cisco Secure Firewall Management Center (FMC) 6.2.3.4, Cisco Secure Firewall Management Center (FMC) 6.2.3.5, Cisco Secure Firewall Management Center (FMC) 6.2.3.6, Cisco Secure Firewall Management Center (FMC) 6.2.3.7, Cisco Secure Firewall Management Center (FMC) 6.2.3.9, Cisco Secure Firewall Management Center (FMC) 6.2.3.10, Cisco Secure Firewall Management Center (FMC) 6.2.3.11, Cisco Secure Firewall Management Center (FMC) 6.2.3.12, Cisco Secure Firewall Management Center (FMC) 6.2.3.13, Cisco Secure Firewall Management Center (FMC) 6.2.3.14, Cisco Secure Firewall Management Center (FMC) 6.2.3.15, Cisco Secure Firewall Management Center (FMC) 6.2.3.8, Cisco Secure Firewall Management Center (FMC) 6.2.3.16, Cisco Secure Firewall Management Center (FMC) 6.2.3.17, Cisco Secure Firewall Management Center (FMC) 6.2.3.18, Cisco Secure Firewall Management Center (FMC) 6.4.0, Cisco Secure Firewall Management Center (FMC) 6.4.0.1, Cisco Secure Firewall Management Center (FMC) 6.4.0.3, Cisco Secure Firewall Management Center (FMC) 6.4.0.2, Cisco Secure Firewall Management Center (FMC) 6.4.0.4, Cisco Secure Firewall Management Center (FMC) 6.4.0.5, Cisco Secure Firewall Management Center (FMC) 6.4.0.6, Cisco Secure Firewall Management Center (FMC) 6.4.0.7, Cisco Secure Firewall Management Center (FMC) 6.4.0.8, Cisco Secure Firewall Management Center (FMC) 6.4.0.9, Cisco Secure Firewall Management Center (FMC) 6.4.0.10, Cisco Secure Firewall Management Center (FMC) 6.4.0.11, Cisco Secure Firewall Management Center (FMC) 6.4.0.12, Cisco Secure Firewall Management Center (FMC) 6.4.0.13, Cisco Secure Firewall Management Center (FMC) 6.4.0.14, Cisco Secure Firewall Management Center (FMC) 6.4.0.15, Cisco Secure Firewall Management Center (FMC) 6.6.0, Cisco Secure Firewall Management Center (FMC) 6.6.0.1, Cisco Secure Firewall Management Center (FMC) 6.6.1, Cisco Secure Firewall Management Center (FMC) 6.6.3, Cisco Secure Firewall Management Center (FMC) 6.6.4, Cisco Secure Firewall Management Center (FMC) 6.6.5, Cisco Secure Firewall Management Center (FMC) 6.6.5.1, Cisco Secure Firewall Management Center (FMC) 6.6.5.2, Cisco Secure Firewall Management Center (FMC) 7.0.0, Cisco Secure Firewall Management Center (FMC) 7.0.0.1, Cisco Secure Firewall Management Center (FMC) 7.0.1, Cisco Secure Firewall Management Center (FMC) 7.0.1.1, Cisco Secure Firewall Management Center (FMC) 7.0.2, Cisco Secure Firewall Management Center (FMC) 7.0.2.1, Cisco Secure Firewall Management Center (FMC) 7.0.3, Cisco Secure Firewall Management Center (FMC) 7.0.4, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.1, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.3, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.2, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.4, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.5, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.6, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.7, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.8, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.9, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.10, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.11, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.12, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.13, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.14, Cisco Secure Firewall Threat Defense (FTD) Software 6.4.0.15, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.0, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.0.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.1.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.2, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.2.1, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.3, Cisco Secure Firewall Threat Defense (FTD) Software 7.0.4, Cisco Secure Firewall Management Center (FMC), Cisco Secure Firewall Threat Defense (FTD) Software, Cisco Secure Firewall Management Center (FMC) Appliances, Cisco Firepower 2100 Series, Cisco Firepower 1000 Series, Cisco ASA 5500-X Series Firewalls, Cisco 3000 Series Industrial Security Appliances (ISA), Cisco Firepower 9000 Series, Cisco Firepower 4100 Series, Cisco Secure Firewall Threat Defense Virtual

Related Products

Product CVE Evidence
Cisco Secure Firewall Threat Defense Virtual CVE-2022-20854 Cisco OpenVuln
Cisco Secure Firewall Threat Defense (FTD) Software CVE-2022-20854 Cisco OpenVuln
Cisco Secure Firewall Management Center (FMC) Appliances CVE-2022-20854 Cisco OpenVuln
Cisco Secure Firewall Management Center (FMC) CVE-2022-20854 Cisco OpenVuln
Cisco Firepower Management Center CVE-2022-20854 Cisco OpenVuln
Cisco Firepower 9000 Series CVE-2022-20854 Cisco OpenVuln
Cisco Firepower 4100 Series CVE-2022-20854 Cisco OpenVuln
Cisco Firepower 2100 Series CVE-2022-20854 Cisco OpenVuln
Cisco Firepower 1000 Series CVE-2022-20854 Cisco OpenVuln
Cisco ASA 5500-X Series Firewalls CVE-2022-20854 Cisco OpenVuln
Cisco 3000 Series Industrial Security Appliances (ISA) CVE-2022-20854 Cisco OpenVuln