Protection mechanism failure in Cisco Secure Firewall Management Center (formerly Firepower Management Center, FMC) - CVE-2018-0244
Published: April 20, 2018
Vulnerability identifier: #VU12073
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-0244
CWE-ID: CWE-693
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco Secure Firewall Management Center (formerly Firepower Management Center, FMC)
Cisco Secure Firewall Management Center (formerly Firepower Management Center, FMC)
Detailed vulnerability description
The vulnerability allows a remote unauthenticated attacker to bypass security restrictions on the target system.
The weakness exists in the detection engine due to how the SMB protocol handles a case in which a large file transfer fails when some pieces of the file are successfully transferred to the remote endpoint, but ultimately the file transfer fails and is reset. A remote attacker can send a specially crafted SMB file transfer request and
bypass a configured file action policy to drop the Server Message Block protocol if a malware file is detected.
The weakness exists in the detection engine due to how the SMB protocol handles a case in which a large file transfer fails when some pieces of the file are successfully transferred to the remote endpoint, but ultimately the file transfer fails and is reset. A remote attacker can send a specially crafted SMB file transfer request and
bypass a configured file action policy to drop the Server Message Block protocol if a malware file is detected.
How to mitigate CVE-2018-0244
Update to version 6.2.3.