CVE-2018-0384

Name: CVE-2018-0384
Creator: NVD / NIST
Published: 2018-07-16T17:29:00.643+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.50%

Last modified Jun 17, 2026

CVE-2018-0384 is a vulnerability of currently unknown severity. 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. EPSS estimates a 2.50% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

2.50%

82.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cisco	Secure Firewall Management Center	6.0.0
Cisco	Secure Firewall Management Center	6.1.0
Cisco	Secure Firewall Management Center	6.2.0
Cisco	Secure Firewall Management Center	6.2.1
Cisco	Secure Firewall Management Center	6.2.2

References

http://www.securityfocus.com/bid/104725Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041284Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180711-firesight-url-bypassVendor Advisory
http://www.securityfocus.com/bid/104725Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041284Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180711-firesight-url-bypassVendor Advisory

Timeline

Published: Jul 16, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-0384?

How severe is CVE-2018-0384?

Severity scoring for CVE-2018-0384 is pending analysis. The EPSS model estimates a 2.50% probability of exploitation in the next 30 days.

How do I fix CVE-2018-0384?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-0384?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST