Improper input validation in Cisco FireSIGHT - CVE-2018-0384

 

Improper input validation in Cisco FireSIGHT - CVE-2018-0384

Published: July 11, 2018 / Updated: July 13, 2018


Vulnerability identifier: #VU13860
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-2018-0384
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco FireSIGHT

Detailed vulnerability description

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The vulnerability exists in the detection engine due to an error when handling of TCP packets that are received out of order when a TCP SYN retransmission is issued. A remote attacker can send a maliciously crafted connection and bypass a URL-based access control policy that is configured to block traffic for the affected system.


How to mitigate CVE-2018-0384

Update to version 6.2.2.3, 6.2.3.

Sources