Cisco Firepower Threat Defense Software SMB Protocol Snort 3 Detection Engine Bypass and Denial of Service Vulnerability
A vulnerability in the interaction between the Server Message Block (SMB) protocol preprocessor and the Snort 3 detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass the configured policies or cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper error-checking when the Snort 3 detection engine is processing SMB traffic. An attacker could exploit this vulnerability by sending a crafted SMB packet stream through an affected device. A successful exploit could allow the attacker to cause the Snort process to reload, resulting in a DoS condition. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is part of the November 2023 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 2023 Semiannual Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication ["https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74985"].
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2023-20270US | medium5.8 | — | ||
A vulnerability in the interaction between the Server Message Block (SMB) protocol preprocessor and the Snort 3 detection engine for Cisco Firepower Threat Defense (FTD) Software c… | ||||
references
External citations — patches, advisories, analysis.
- Security Vulnerability Policyexternal
- Cisco Firepower Threat Defense Software SMB Protocol Snort 3 Detection Engine Bypass and Denial of Service Vulnerabilityself
- Cisco Security Vulnerability Policyexternal
- Security Impact Rating (SIR)external
- considering software upgradesexternal
- Cisco Software Checkerexternal
- Cisco Event Response: November 2023 Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publicationexternal
- Determine the Active Snort Version that Runs on Firepower Threat Defense (FTD)external
remediations (77)
- FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0 when installed on Cisco 3000 Series Industrial Security Appliances (ISA)
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0 when installed on Cisco Firepower 1000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0 when installed on Cisco Firepower 2100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0 when installed on Cisco Firepower 4100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0 when installed on Cisco Firepower 9000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0 when installed on Cisco Secure Firewall 3100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0 when installed on Cisco Secure Firewall Threat Defense Virtual
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0.1 when installed on Cisco 3000 Series Industrial Security Appliances (ISA)
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0.1 when installed on Cisco Firepower 1000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0.1 when installed on Cisco Firepower 2100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0.1 when installed on Cisco Firepower 4100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0.1 when installed on Cisco Firepower 9000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0.1 when installed on Cisco Secure Firewall Threat Defense Virtual
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0.2 when installed on Cisco Secure Firewall 3100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0.3 when installed on Cisco 3000 Series Industrial Security Appliances (ISA)
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0.3 when installed on Cisco Firepower 1000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0.3 when installed on Cisco Firepower 2100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0.3 when installed on Cisco Firepower 4100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0.3 when installed on Cisco Firepower 9000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0.3 when installed on Cisco Secure Firewall 3100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.1.0.3 when installed on Cisco Secure Firewall Threat Defense Virtual
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.0 when installed on Cisco 3000 Series Industrial Security Appliances (ISA)
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.0 when installed on Cisco Firepower 1000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.0 when installed on Cisco Firepower 2100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.0 when installed on Cisco Firepower 4100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.0 when installed on Cisco Firepower 9000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.0 when installed on Cisco Secure Firewall 3100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.0 when installed on Cisco Secure Firewall Threat Defense Virtual
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.0.1 when installed on Cisco 3000 Series Industrial Security Appliances (ISA)
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.0.1 when installed on Cisco Firepower 1000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.0.1 when installed on Cisco Firepower 2100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.0.1 when installed on Cisco Firepower 4100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.0.1 when installed on Cisco Firepower 9000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.0.1 when installed on Cisco Secure Firewall 3100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.0.1 when installed on Cisco Secure Firewall Threat Defense Virtual
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.1 when installed on Cisco 3000 Series Industrial Security Appliances (ISA)
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.1 when installed on Cisco Firepower 1000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.1 when installed on Cisco Firepower 2100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.1 when installed on Cisco Firepower 4100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.1 when installed on Cisco Firepower 9000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.1 when installed on Cisco Secure Firewall 3100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.1 when installed on Cisco Secure Firewall Threat Defense Virtual
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.2 when installed on Cisco 3000 Series Industrial Security Appliances (ISA)
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.2 when installed on Cisco Firepower 1000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.2 when installed on Cisco Firepower 2100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.2 when installed on Cisco Firepower 4100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.2 when installed on Cisco Firepower 9000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.2 when installed on Cisco Secure Firewall 3100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.2 when installed on Cisco Secure Firewall Threat Defense Virtual
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.3 when installed on Cisco 3000 Series Industrial Security Appliances (ISA)
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.3 when installed on Cisco Firepower 1000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.3 when installed on Cisco Firepower 2100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.3 when installed on Cisco Firepower 4100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.3 when installed on Cisco Firepower 9000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.3 when installed on Cisco Secure Firewall 3100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.2.3 when installed on Cisco Secure Firewall Threat Defense Virtual
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.0 when installed on Cisco 3000 Series Industrial Security Appliances (ISA)
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.0 when installed on Cisco Firepower 1000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.0 when installed on Cisco Firepower 2100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.0 when installed on Cisco Firepower 4100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.0 when installed on Cisco Firepower 9000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.0 when installed on Cisco Secure Firewall 3100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.0 when installed on Cisco Secure Firewall Threat Defense Virtual
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.1 when installed on Cisco 3000 Series Industrial Security Appliances (ISA)
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.1 when installed on Cisco Firepower 1000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.1 when installed on Cisco Firepower 2100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.1 when installed on Cisco Firepower 4100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.1 when installed on Cisco Firepower 9000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.1 when installed on Cisco Secure Firewall 3100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.1 when installed on Cisco Secure Firewall Threat Defense Virtual
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.1.1 when installed on Cisco 3000 Series Industrial Security Appliances (ISA)
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.1.1 when installed on Cisco Firepower 1000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.1.1 when installed on Cisco Firepower 2100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.1.1 when installed on Cisco Firepower 4100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.1.1 when installed on Cisco Firepower 9000 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.1.1 when installed on Cisco Secure Firewall 3100 Series
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Firewall Threat Defense (FTD) Software 7.3.1.1 when installed on Cisco Secure Firewall Threat Defense Virtual
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
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