Security restrictions bypass in Cisco Secure Firewall Management Center (formerly Firepower Management Center, FMC) - CVE-2018-15443
Published: November 7, 2018 / Updated: November 8, 2018
Vulnerability identifier: #VU15769
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-15443
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass security restrictions on the target system.
The vulnerability exists in the detection engine due to incorrect TCP retransmission handling. A remote unauthenticated attacker can send a specially crafted TCP connection request through an affected device and bypass configured Intrusion Prevention System (IPS) rules and allow uninspected traffic onto the network.
Affected software
Cisco Secure Firewall Management Center (formerly Firepower Management Center, FMC)
How to mitigate CVE-2018-15443
Update to version 6.2.3.6.
Cisco Secure Firewall Management Center (formerly Firepower Management Center, FMC) - update to 6.2.3.6