Vulnerabilities > CVE-2023-20083 - Unspecified vulnerability in Cisco Firepower Threat Defense

CVSS 8.6 - HIGH

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

NONE

Integrity impact

NONE

Availability impact

HIGH

network

low complexity

cisco

NVD

Published: 2023-11-01

Updated: 2024-01-25

Summary

A vulnerability in ICMPv6 inspection when configured with the Snort 2 detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the CPU of an affected device to spike to 100 percent, which could stop all traffic processing and result in a denial of service (DoS) condition. FTD management traffic is not affected by this vulnerability. This vulnerability is due to improper error checking when parsing fields within the ICMPv6 header. An attacker could exploit this vulnerability by sending a crafted ICMPv6 packet through an affected device. A successful exploit could allow the attacker to cause the device to exhaust CPU resources and stop processing traffic, resulting in a DoS condition. Note: To recover from the DoS condition, the Snort 2 Detection Engine or the Cisco FTD device may need to be restarted.

Vulnerable Configurations

Part	Description	Count
Application	Cisco 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 6.7.0.3 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 7.1.0 Cisco Firepower Threat Defense 7.1.0.0 Cisco Firepower Threat Defense 7.1.0.1 Cisco Firepower Threat Defense 7.1.0.2 Cisco Firepower Threat Defense 7.1.0.3 Cisco Firepower Threat Defense 7.0.0 Cisco Firepower Threat Defense 7.0.0.1 Cisco Firepower Threat Defense 7.0.1 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 7.0.5 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 6.4.0.16 Cisco Firepower Threat Defense 6.4.0.17 Cisco Firepower Threat Defense 6.6.0 Cisco Firepower Threat Defense 6.6.0.1 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 6.6.7 Cisco Firepower Threat Defense 6.6.7.1 Cisco Firepower Threat Defense 7.2.0 Cisco Firepower Threat Defense 7.2.0.0 Cisco Firepower Threat Defense 7.2.0.1 Cisco Firepower Threat Defense 7.2.1 Cisco Firepower Threat Defense 7.2.2 Cisco Firepower Threat Defense 7.2.3 Cisco Firepower Threat Defense 7.3.0 Cisco Firepower Threat Defense 7.3.1 Cisco Firepower Threat Defense 7.3.1.1	75

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-icmpv6-dos-4eMkLuN