Vulnerability identifier: #VU12072

Vulnerability risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0254

CWE-ID: CWE-693

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Firepower Management Center
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: Cisco Systems, Inc

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

The weakness exists in the detection engine due to incorrect counting of the percentage of dropped traffic. A remote attacker can send network traffic and bypass configured file action policies if an Intelligent Application Bypass (IAB) with a drop percentage threshold is also configured.

Mitigation
Update to versions 6.2.0.4, 6.1.0.6, 6.2.3 or 6.2.2.2.

Vulnerable software versions

Cisco Firepower Management Center: 6.1.0.5 - 6.2.2

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-fss2

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.