Security Advisories

Insider Threat Management Server Authenticated XML External Entity Vulnerability, CVE-2021-22158

Advisory ID: PFPT-SA-2021-0003

The Proofpoint Insider Threat Management Server (formerly ObserveIT Server) is vulnerable to XML external entity (XXE) injection in the Web Console. The vulnerability requires admin user privileges and knowledge of the XML file's encryption key to successfully exploit. All versions before 7.11 are affected.

Vulnerability Information

This vulnerability is identified by CVE-2021-22158. Proofpoint has released patches to address this issue.

This vulnerability has been assigned a CVSS score of 8.3:

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Fixed Software

Proofpoint has released fixes in versions 7.9.3, 7.10.3, and 7.11.1.

The patched versions are now available through the customer support portal.

Revision History

Version Description Section Date
1.0 Initial release   April 6, 2021

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