What is CVE-2019-20634?

CVE-2019-20634 is a vulnerability found in Proofpoint Email Protection that allows an attacker to build a copy-cat Machine Learning Classification model and extract insights from it.

What is the severity of CVE-2019-20634?

The severity of CVE-2019-20634 is medium with a CVSS score of 3.7.

How does CVE-2019-20634 affect Proofpoint Email Protection?

CVE-2019-20634 affects Proofpoint Email Protection versions up to and including 2019-09-08.

How can an attacker exploit CVE-2019-20634?

An attacker can exploit CVE-2019-20634 by collecting scores from Proofpoint email headers to build a copy-cat Machine Learning Classification model and gain insights for crafting malicious emails.

Is there a fix for CVE-2019-20634?

It is recommended to update Proofpoint Email Protection to a version that is not affected by CVE-2019-20634 to fix the vulnerability.

Vulnerability/
CVE-2019-20634

medium

4.3

CWE

697

30/3/2020

19/8/2024

CVE-2019-20634

First published: Mon Mar 30 2020(Updated: )

An issue was discovered in Proofpoint Email Protection through 2019-09-08. By collecting scores from Proofpoint email headers, it is possible to build a copy-cat Machine Learning Classification model and extract insights from this model. The insights gathered allow an attacker to craft emails that receive preferable scores, with a goal of delivering malicious emails.

Credit: cve@mitre.org cve@mitre.org

Affected Software	Affected Version	How to fix
Proofpoint Email Protection	<=2019-09-08
	<=2019-09-08

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Frequently Asked Questions

What is CVE-2019-20634?
CVE-2019-20634 is a vulnerability found in Proofpoint Email Protection that allows an attacker to build a copy-cat Machine Learning Classification model and extract insights from it.
What is the severity of CVE-2019-20634?
The severity of CVE-2019-20634 is medium with a CVSS score of 3.7.
How does CVE-2019-20634 affect Proofpoint Email Protection?
CVE-2019-20634 affects Proofpoint Email Protection versions up to and including 2019-09-08.
How can an attacker exploit CVE-2019-20634?
An attacker can exploit CVE-2019-20634 by collecting scores from Proofpoint email headers to build a copy-cat Machine Learning Classification model and gain insights for crafting malicious emails.
Is there a fix for CVE-2019-20634?
It is recommended to update Proofpoint Email Protection to a version that is not affected by CVE-2019-20634 to fix the vulnerability.

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vendor/proofpoint
canonical/proofpoint email protection
version/proofpoint email protection/2019-09-08

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