cisco-sa-ftd-icmp-dos-hxxcycM: Cisco Firepower 4110 ICMP Flood Denial of Service Vulnerability
First published: Wed Oct 21 2020(Updated: )
A vulnerability in the ICMP ingress packet processing of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 4110 appliances could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to incomplete input validation upon receiving ICMP packets. An attacker could exploit this vulnerability by sending a high number of crafted ICMP or ICMPv6 packets to an affected device. A successful exploit could allow the attacker to cause a memory exhaustion condition that may result in an unexpected reload. No manual intervention is needed to recover the device after the reload. 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-ftd-icmp-dos-hxxcycM This advisory is part of the October 2020 Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication, which includes 17 Cisco Security Advisories that describe 17 vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: October 2020 Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication.
Credit: This vulnerability was found by Santosh Krishnamurthy Cisco during internal security testing
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco FTD Software | >=6.3.0<=6.4.0<6.4.0.10 | 6.4.0.10 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID of this Cisco FTD vulnerability?
The vulnerability ID is cisco-sa-ftd-icmp-dos-hxxcycM.
What is the severity rating of the cisco-sa-ftd-icmp-dos-hxxcycM vulnerability?
The severity rating of the cisco-sa-ftd-icmp-dos-hxxcycM vulnerability is high (8.6).
What is the affected software for the cisco-sa-ftd-icmp-dos-hxxcycM vulnerability?
The affected software for the cisco-sa-ftd-icmp-dos-hxxcycM vulnerability is Cisco Firepower Threat Defense (FTD) Software version 6.3.0 up to 6.4.0 (up to exclusive) and version 6.4.0.10 (inclusive).
How can an unauthenticated, remote attacker exploit the cisco-sa-ftd-icmp-dos-hxxcycM vulnerability?
An unauthenticated, remote attacker can exploit the cisco-sa-ftd-icmp-dos-hxxcycM vulnerability by sending specially crafted ICMP ingress packets to the affected device, causing a denial of service (DoS) condition.
Is there a fix for the cisco-sa-ftd-icmp-dos-hxxcycM vulnerability?
Yes, Cisco has released a fix for the cisco-sa-ftd-icmp-dos-hxxcycM vulnerability. It is recommended to update to Cisco Firepower Threat Defense (FTD) Software version 6.4.0.10 or apply the necessary remediation as specified in the Cisco Security Advisory.
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