Vulnerability identifier: #VU12792

Vulnerability risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0297

CWE-ID: CWE-19

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 and write arbitrary files on the target system.

The weakness exists in the detection engine due to the incorrect handling of TCP SSL packets received out of order. A remote attacker can send a specially crafted SSL connection, bypass a configured SSL AC policy and block SSL traffic.

Mitigation
Update to version 6.2.3 or 6.2.2.3.

Vulnerable software versions

Cisco Firepower Management Center: 6.0.0 - 6.2.3

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180516-firepwr-pb

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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.