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CVE-2017-12303

5.3 · MEDIUM

A vulnerability in the Advanced Malware Protection (AMP) file filtering feature of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to b…

Published Nov 16, 2017CWE-358EPSS 1.64%

Overview

CVE-2017-12303 is a medium-severity vulnerability. It was published on November 16, 2017 and has a CVSS 3.0 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 5.3, 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 Advanced Malware Protection (AMP) file filtering feature of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to bypass a configured AMP file filtering rule. The file types affected are zipped or archived file types. The vulnerability is due to incorrect and different file hash values when AMP scans the file. An attacker could exploit this vulnerability by sending a crafted email file attachment through the targeted device. An exploit could allow the attacker to bypass a configured AMP file filter. Cisco Bug IDs: CSCvf52943.

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/101932Refwww.securitytracker.com/id/1039828Reftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-wsaRefwww.securityfocus.com/bid/101932Refwww.securitytracker.com/id/1039828Reftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-wsa

How CyberStrike helps

Frequently asked questions

What is CVE-2017-12303?

CVE-2017-12303 is a medium-severity vulnerability. It was published on November 16, 2017 and has a CVSS 3.0 base score of 5.3 (MEDIUM).

How severe is CVE-2017-12303?

This vulnerability has a CVSS 3.0 base score of 5.3, 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-2017-12303?

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-2017-12303?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-12303 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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