Essentials Filter Bypass with .eml or .msg File Attachments
Advisory ID: PFPT-SA-2021-0012
Proofpoint Essentials contained a vulnerability in the scanning engine that allowed certain blocked filetypes to bypass customer created filters when embedded in an attached .eml or .msg attachment. A fix has been deployed. End users should be advised to approach any emails with .eml or .msg attachments received prior to September 23, 2021, with caution. No further action is required.
There is no further vulnerability information for this issue as it is a cloud application.
This vulnerability has been assigned a CVSS score of 7.5.
Proofpoint has deployed the fixed version to the cloud application.
Proofpoint Essentials Customers
No action is required. Applicable fixes have already been deployed by Proofpoint.
For any questions or concerns, please contact Proofpoint Support.
|November 12, 2021
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. PROOFPOINT RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
A standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for authorized subscribers to Proofpoint products and services.