CVE-2018-0384 Security feature bypass in Cisco FireSIGHT unknown
Unauthenticated remote attackers can bypass URL-based access control policies by exploiting improper handling of out-of-order TCP packets in Cisco FireSIGHT.
- 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-2018-0384?
CVE-2018-0384 is a medium-severity vulnerability in Cisco Secure Firewall Management Center, published on 16 Jul 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the detection engine of Cisco FireSIGHT System Software could allow an unauthenticated, remote attacker to bypass a URL-based access control policy that is configured to block traffic for an affected system. The vulnerability exists because the affected software incorrectly handles TCP packets that are received out of order when a TCP SYN retransmission is issued. An attacker could exploit this vulnerability by sending a maliciously crafted connection through an affected device. A successful exploit could allow the attacker to bypass a URL-based access control policy that is configured to block traffic for the affected system. Cisco Bug IDs: CSCvh84511.
Weakness: CWE-693
Which versions are affected by CVE-2018-0384?
It affects 1 product.
Products include Cisco Secure Firewall Management Center.
How do I fix CVE-2018-0384?
No fix has been published for CVE-2018-0384 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-0384 being exploited?
There is no known exploitation of CVE-2018-0384 in the wild and no public exploit code.
Other vulnerabilities in Cisco Secure Firewall Management Center
- CVE-2026-20079 Cisco Firewall Management Center Authentication Bypass Using an Alternate Path or Channel
- CVE-2026-20131 Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management Deserialization of Untrusted Data
- CVE-2026-20316 Cisco Secure Firewall Management Center Use of Hard-coded Password
- CVE-2025-20265 Cisco Secure Firewall Management Center Software Radius Remote Code Execution Vulnerability
- CVE-2024-20424 Command injection in Cisco Firepower Management Center
Sources
Also known as GHSA-f398-6grg-hg27.