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CVE-2018-0254

Severity CVSS v4.0:
Pending analysis
Type:
CWE-693 Protection Mechanism Failure
Publication date:
19/04/2018
Last modified:
09/10/2019

Description

A vulnerability in the detection engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass configured file action policies if an Intelligent Application Bypass (IAB) with a drop percentage threshold is also configured. The vulnerability is due to incorrect counting of the percentage of dropped traffic. An attacker could exploit this vulnerability by sending network traffic to a targeted device. An exploit could allow the attacker to bypass configured file action policies, and traffic that should be dropped could be allowed into the network. Cisco Bug IDs: CSCvf86435.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.30 MEDIUM
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): Low
Availability (A): None

Base Score 3.x
5.30
Severity 3.x
MEDIUM
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): None

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:cisco:firepower_threat_defense:6.1.0.5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.2.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.2.2:*:*:*:*:*:*:*
cpe:2.3:h:cisco:amp_7150:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:amp_8150:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_appliance_7010:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_appliance_7020:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_appliance_7030:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_appliance_7050:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_appliance_7110:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_appliance_7115:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_appliance_7120:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_appliance_7125:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_appliance_8120:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools