CVE-2024-20342 Cisco Firepower Threat Defense Software Rate Filter Bypass Vulnerability
An unauthenticated remote attacker can bypass configured rate limiting filters on Cisco Firepower devices, allowing unintended traffic to enter the protected network.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-20342?
CVE-2024-20342 is a medium-severity vulnerability in Cisco Secure Firewall Threat Defense, published on 23 Oct 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Multiple Cisco products are affected by a vulnerability in the rate filtering feature of the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured rate limiting filter. This vulnerability is due to an incorrect connection count comparison. An attacker could exploit this vulnerability by sending traffic through an affected device at a rate that exceeds a configured rate filter. A successful exploit could allow the attacker to successfully bypass the rate filter. This could allow unintended traffic to enter the network protected by the affected device.
Weakness: CWE-1025
Which versions are affected by CVE-2024-20342?
It affects 2 products.
Products include Cisco Secure Firewall Threat Defense, Cisco Snort.
How do I fix CVE-2024-20342?
No fix has been published for CVE-2024-20342 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-20342 being exploited?
There is no known exploitation of CVE-2024-20342 in the wild and no public exploit code.
Other vulnerabilities in Cisco Secure Firewall Threat Defense
- CVE-2024-20412 Hardcoded credentials in Cisco Firepower Threat Defense Software
- CVE-2024-20330 Memory corruption in Cisco Firepower Threat Defense Software
- CVE-2024-20339 Cisco Firepower Threat Defense Software for Firepower 2100 Series TLS Denial of Service Vulnerability
- CVE-2024-20351 Cisco Firepower Threat Defense Software Snort Firewall Denial of Service Vulnerability
- CVE-2023-20083 Denial of service in Cisco Firepower Threat Defense Software
Sources
Also known as GHSA-hf42-4qwp-gc9r.