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CVE-2017-12300

5.8 · MEDIUM

A vulnerability in the SNORT detection engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass a file policy that is configured to block the Server Messa…

Published Nov 16, 2017CWE-20EPSS 1.60%

Overview

CVE-2017-12300 is a medium-severity vulnerability. It was published on November 16, 2017 and has a CVSS 3.0 base score of 5.8 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 5.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A vulnerability in the SNORT detection engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass a file policy that is configured to block the Server Message Block Version 2 (SMB2) protocol. The vulnerability is due to the incorrect detection of an SMB2 file when the detection is based on the length of the file. An attacker could exploit this vulnerability by sending a crafted SMB2 transfer request through the targeted device. A successful exploit could allow the attacker to bypass filters that are configured to block SMB2 traffic. Cisco Bug IDs: CSCve58398.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.securityfocus.com/bid/101862Reftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-firepower2Refwww.securityfocus.com/bid/101862Reftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-firepower2

How CyberStrike helps

Frequently asked questions

What is CVE-2017-12300?

CVE-2017-12300 is a medium-severity vulnerability. It was published on November 16, 2017 and has a CVSS 3.0 base score of 5.8 (MEDIUM).

How severe is CVE-2017-12300?

This vulnerability has a CVSS 3.0 base score of 5.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2017-12300?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-12300?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-12300 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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