Vulnerability identifier: #VU10410

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-2018-0138

CWE-ID: CWE-20

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 attacker to bypass security restrictions on the target system.

The weakness exists in the detection engine of Cisco Firepower System Software due to the affected software does not detect BitTorrent handshake messages correctly. A remote attacker can send a specially crafted BitTorrent connection request and bypass file policies that are configured to block files transmitted to the affected device via the BitTorrent protocol.

Mitigation
Update to version 6.1.0.6.

Vulnerable software versions

Cisco Firepower Management Center: 6.1.0 - 6.2.3

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180207-fss

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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.