CVE-2021-27900 : What You Need to Know
Critical CVE-2021-27900 in Proofpoint Insider Threat Management Server allows unauthorized users to alter configurations and delete agents pre-version 7.11.1. Take immediate steps for mitigation.
Proofpoint Insider Threat Management Server (formerly ObserveIT Server) versions prior to 7.11.1 are vulnerable to an authorization check bypass, allowing unauthorized users to modify configurations and delete registered agents.
Understanding CVE-2021-27900
This CVE identifies a critical security issue in the Proofpoint Insider Threat Management Server, enabling unauthorized users to perform unauthorized actions.
What is CVE-2021-27900?
The vulnerability in the Proofpoint Insider Threat Management Server allows view-only users to change configurations and delete registered agents without proper authorization.
The Impact of CVE-2021-27900
Unauthorized users can exploit this vulnerability to compromise system integrity, manipulate settings, and disrupt agent registrations.
Technical Details of CVE-2021-27900
This section provides specific technical details about the vulnerability.
Vulnerability Description
The flaw in the Proofpoint Insider Threat Management Server lacks proper authorization checks on certain web console pages, permitting unauthorized users to execute critical actions.
Affected Systems and Versions
All versions of the Proofpoint Insider Threat Management Server preceding 7.11.1 are impacted by this vulnerability.
Exploitation Mechanism
By exploiting the absence of proper authorization validation, unauthorized view-only users can manipulate configurations and delete registered agents.
Mitigation and Prevention
Protect your systems by following the mitigation strategies below.
Immediate Steps to Take
Ensure that unauthorized users do not have access to critical configuration settings. Consider restricting access permissions and activities that could compromise system security.
Long-Term Security Practices
Implement regular security audits, access control reviews, and user permission updates to prevent unauthorized actions and maintain system integrity.
Patching and Updates
Update to version 7.11.1 or later of the Proofpoint Insider Threat Management Server to address this vulnerability and enhance system security.