CVE-2018-0384

Severity Score

5.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Una vulnerabilidad en el motor de detección de Cisco Firepower System Software podría permitir que un atacante remoto sin autenticar omita una política de control de acceso basada en URL que está configurada para bloquear el tráfico para un sistema afectado. La vulnerabilidad existe debido a que el software afectado gestiona incorrectamente los paquetes TCP que se reciben fuera de orden cuando se lanza una retransmisión TCP SYN. Un atacante podría explotar esta vulnerabilidad enviando una conexión maliciosamente manipulada a través de un dispositivo afectado. Un exploit exitoso podría permitir que el atacante omita una política de control de acceso basada en URL que está configurada para bloquear el tráfico para un sistema afectado. Cisco Bug IDs: CSCvh84511.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-11-27 CVE Reserved
2018-07-16 CVE Published
2024-01-16 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-693: Protection Mechanism Failure

CAPEC

References (3)

URL	Tag	Source
http://www.securityfocus.com/bid/104725	Third Party Advisory
http://www.securitytracker.com/id/1041284	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180711-firesight-url-bypass	2019-10-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"		Firepower Management Center Search vendor "Cisco" for product "Firepower Management Center"				6.0.0 Search vendor "Cisco" for product "Firepower Management Center" and version "6.0.0"		-		Affected
Cisco Search vendor "Cisco"		Firepower Management Center Search vendor "Cisco" for product "Firepower Management Center"				6.1.0 Search vendor "Cisco" for product "Firepower Management Center" and version "6.1.0"		-		Affected
Cisco Search vendor "Cisco"		Firepower Management Center Search vendor "Cisco" for product "Firepower Management Center"				6.2.0 Search vendor "Cisco" for product "Firepower Management Center" and version "6.2.0"		-		Affected
Cisco Search vendor "Cisco"		Firepower Management Center Search vendor "Cisco" for product "Firepower Management Center"				6.2.1 Search vendor "Cisco" for product "Firepower Management Center" and version "6.2.1"		-		Affected
Cisco Search vendor "Cisco"		Firepower Management Center Search vendor "Cisco" for product "Firepower Management Center"				6.2.2 Search vendor "Cisco" for product "Firepower Management Center" and version "6.2.2"		-		Affected