What is the vulnerability ID for this vulnerability?

The vulnerability ID for this vulnerability is CVE-2019-15971.

What is the severity of CVE-2019-15971?

The severity of CVE-2019-15971 is medium with a CVSS score of 4.3.

What is the affected software of CVE-2019-15971?

The affected software of CVE-2019-15971 is Cisco Email Security Appliance Firmware up to version 13.0.

How can an attacker exploit CVE-2019-15971?

An attacker can exploit CVE-2019-15971 by bypassing configured content filters on the Cisco Email Security Appliance (ESA) through improper validation of certain MP3 file types.

Is there a fix available for CVE-2019-15971?

Yes, Cisco has released a security advisory with instructions on how to mitigate this vulnerability.

Vulnerability/
CVE-2019-15971

medium

5.8

CWE

345 20

26/11/2019

19/11/2024

CVE-2019-15971: Cisco Email Security Appliance MP3 Content Filter Bypass Vulnerability

First published: Tue Nov 26 2019(Updated: )

A vulnerability in the MP3 detection engine of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass configured content filters on the device. The vulnerability is due to improper validation of certain MP3 file types. An attacker could exploit this vulnerability by sending a crafted MP3 file through the targeted device. A successful exploit could allow the attacker to bypass configured content filters that would normally drop the email.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco Email Security Appliance Firmware	<13.0

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Reference Links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191120-esa-mp3-bypass

Frequently Asked Questions

What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2019-15971.
What is the severity of CVE-2019-15971?
The severity of CVE-2019-15971 is medium with a CVSS score of 4.3.
What is the affected software of CVE-2019-15971?
The affected software of CVE-2019-15971 is Cisco Email Security Appliance Firmware up to version 13.0.
How can an attacker exploit CVE-2019-15971?
An attacker can exploit CVE-2019-15971 by bypassing configured content filters on the Cisco Email Security Appliance (ESA) through improper validation of certain MP3 file types.
Is there a fix available for CVE-2019-15971?
Yes, Cisco has released a security advisory with instructions on how to mitigate this vulnerability.

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