What is the vulnerability ID for this Snort 3 vulnerability?

The vulnerability ID for this Snort 3 vulnerability is CVE-2023-20267.

What is the severity of CVE-2023-20267?

The severity of CVE-2023-20267 is medium (5.3).

What software is affected by CVE-2023-20267?

The Cisco Firepower Threat Defense software versions 6.7.0 to 7.3.1.1 are affected by CVE-2023-20267.

How can an attacker exploit CVE-2023-20267?

An attacker can exploit CVE-2023-20267 by bypassing IP address restrictions through the improper parsing of IP geolocation rules in Snort 3.

Where can I find more information about CVE-2023-20267?

You can find more information about CVE-2023-20267 at the Cisco Security Advisory: [link](https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftdsnort3sip-bypass-LMz2ThKn).

Vulnerability/
CVE-2023-20267

medium

5.3

CWE

284

1/11/2023

25/1/2024

CVE-2023-20267

First published: Wed Nov 01 2023(Updated: )

A vulnerability in the IP geolocation rules of Snort 3 could allow an unauthenticated, remote attacker to potentially bypass IP address restrictions. This vulnerability exists because the configuration for IP geolocation rules is not parsed properly. An attacker could exploit this vulnerability by spoofing an IP address until they bypass the restriction. A successful exploit could allow the attacker to bypass location-based IP address restrictions.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco Firepower Threat Defense	>=6.7.0<=7.3.1.1

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Reference Links

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftdsnort3sip-bypass-LMz2ThKn

Frequently Asked Questions

What is the vulnerability ID for this Snort 3 vulnerability?
The vulnerability ID for this Snort 3 vulnerability is CVE-2023-20267.
What is the severity of CVE-2023-20267?
The severity of CVE-2023-20267 is medium (5.3).
What software is affected by CVE-2023-20267?
The Cisco Firepower Threat Defense software versions 6.7.0 to 7.3.1.1 are affected by CVE-2023-20267.
How can an attacker exploit CVE-2023-20267?
An attacker can exploit CVE-2023-20267 by bypassing IP address restrictions through the improper parsing of IP geolocation rules in Snort 3.
Where can I find more information about CVE-2023-20267?
You can find more information about CVE-2023-20267 at the Cisco Security Advisory: [link](https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftdsnort3sip-bypass-LMz2ThKn).

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agent/description
agent/event
agent/tags
collector/nvd-api
source/NVD
agent/software-canonical-lookup
vendor/cisco
canonical/cisco firepower threat defense
version/cisco firepower threat defense/6.7.0
version/cisco firepower threat defense/7.3.1.1

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