First published: Mon Jul 16 2018(Updated: )
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.
Credit: ykramarz@cisco.com ykramarz@cisco.com
Affected Software | Affected Version | How to fix |
---|---|---|
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 | |
Cisco Firepower Management Center Software | =6.0.0 | |
Cisco Firepower Management Center Software | =6.1.0 | |
Cisco Firepower Management Center Software | =6.2.0 | |
Cisco Firepower Management Center Software | =6.2.1 | |
Cisco Firepower Management Center Software | =6.2.2 |
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CVE-2018-0384 has a severity rating of medium, indicating a moderate risk to affected systems.
To mitigate CVE-2018-0384, it is recommended to update the Cisco FireSIGHT System Software to the latest version available.
CVE-2018-0384 affects specific versions of Cisco Secure Firewall Management Center and Cisco Firepower Management Center Software.
Yes, CVE-2018-0384 can be exploited by unauthenticated, remote attackers to bypass access control policies.
CVE-2018-0384 is a vulnerability in the detection engine that improperly handles URL-based access control, allowing unauthorized access.