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Cisco Adaptive Security Appliance and Firepower Threat Defense Software SNMP Denial of Service Vulnerability

cisco-sa-asaftd-snmp-dos-7TcnzxTU · High · Published · Updated

A vulnerability in the Simple Network Management Protocol (SNMP) feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to cause an unexpected reload of the device. This vulnerability is due to insufficient input validation of SNMP packets. An attacker could exploit this vulnerability by sending a crafted SNMP request to an affected device using IPv4 or IPv6. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability affects all versions of SNMP (versions 1, 2c, and 3) and requires a valid SNMP community string or valid SNMPv3 user credentials. For more information, see the Details section of this advisory. 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-asaftd-snmp-dos-7TcnzxTU This advisory is part of the October 2024 release of the Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: October 2024 Semiannual Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication.

Cisco advisory · CSAF JSON

Workarounds

There are no workarounds that address this vulnerability. However, if SNMP is not necessary on the device, administrators can disable SNMP to close the attack vector. Administrators can also reduce the attack surface by only allowing SNMP connections from trusted SNMP monitoring hosts.

While this mitigation has been deployed and was proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment.

CVEsCVE-2024-20268
Cisco Bug IDsCSCwe90609, CSCwi20114
CVSS ScoreBase 7.7
Base 7.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:X/RL:X/RC:X
Product Names From Source
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.14.1, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.14.1.10, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.14.1.6, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.14.1.15, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.14.1.19, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.14.1.30, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.14.2, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.14.2.4, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.14.2.8, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.14.2.13, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.14.2.15, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.14.3, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.14.3.1, Cisco Secure Firewall 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Related Products

Product CVE Evidence
Cisco Secure Firewall Threat Defense Virtual CVE-2024-20268 Cisco OpenVuln
Cisco Secure Firewall Threat Defense (FTD) Software CVE-2024-20268 Cisco OpenVuln
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software CVE-2024-20268 Cisco OpenVuln
Cisco Secure Firewall 4200 Series CVE-2024-20268 Cisco OpenVuln
Cisco Secure Firewall 3100 Series CVE-2024-20268 Cisco OpenVuln
Cisco Firepower 9000 Series CVE-2024-20268 Cisco OpenVuln
Cisco Firepower 4100 Series CVE-2024-20268 Cisco OpenVuln
Cisco Firepower 2100 Series CVE-2024-20268 Cisco OpenVuln
Cisco Firepower 1000 Series CVE-2024-20268 Cisco OpenVuln
Cisco Adaptive Security Virtual Appliance (ASAv) CVE-2024-20268 Cisco OpenVuln
Cisco Adaptive Security Appliance (ASA) Software CVE-2024-20268 Cisco OpenVuln
Cisco ASA 5500-X Series Firewalls CVE-2024-20268 Cisco OpenVuln
Cisco 3000 Series Industrial Security Appliances (ISA) CVE-2024-20268 Cisco OpenVuln