CVE-2017-12303

Name: CVE-2017-12303
Creator: NVD / NIST
Published: 2017-11-16T07:29:00.43+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.64%

Last modified Jun 17, 2026

CVE-2017-12303 is a vulnerability of currently unknown severity. 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. EPSS estimates a 1.64% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

1.64%

73.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cisco	Asyncos	10.1.1-234
Cisco	Asyncos	10.1.1-235

References

http://www.securityfocus.com/bid/101932Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039828Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-wsaVendor Advisory
http://www.securityfocus.com/bid/101932Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039828Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-wsaVendor Advisory

Timeline

Published: Nov 16, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-12303?

How severe is CVE-2017-12303?

Severity scoring for CVE-2017-12303 is pending analysis. The EPSS model estimates a 1.64% probability of exploitation in the next 30 days.

How do I fix CVE-2017-12303?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-12303?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST