CVE-2024-20363 Security feature bypass in Cisco Firepower Threat Defense Software
Unauthenticated remote attackers can bypass configured IPS rules by sending crafted HTTP packets, allowing uninspected traffic onto the 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-2024-20363?
CVE-2024-20363 is a medium-severity vulnerability in Cisco Secure Firewall Threat Defense, published on 22 May 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 Snort Intrusion Prevention System (IPS) rule engine that could allow an unauthenticated, remote attacker to bypass the configured rules on an affected system. This vulnerability is due to incorrect HTTP packet handling. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass configured IPS rules and allow uninspected traffic onto the network.
Weakness: CWE-290
Which versions are affected by CVE-2024-20363?
It affects 3 products.
Products include Cisco Secure Firewall Threat Defense, Cisco Snort, Cisco Unified Threat Defense Snort Intrusion Prevention System Engine.
How do I fix CVE-2024-20363?
No fix has been published for CVE-2024-20363 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-20363 being exploited?
There is no known exploitation of CVE-2024-20363 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-fgmg-8v8r-jj8g.