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DETECTION OVERVIEW

Zoho ManageEngine Exploit Attempt - CVE-2019-8394

Risk Factors

An attacker with access to a vulnerable ManageEngine ServiceDesk Plus server can upload a malicious executable file. A successful exploit can result in the attacker gaining control of the server and launching additional attacks on network devices, deploying ransomware, or moving laterally across the network.

Category

Exploitation
Detection diagram
Next in Exploitation: Zoho ManageEngine Exploit Attempt - CVE-2021-44077

Attack Background

The ManageEngine ServiceDesktop Plus is enterprise software that supports IT help desk management. ServiceDesktop Plus contains a vulnerability that allows untrusted data in uploaded files to be processed and run as code on the ManageEngine server. To exploit this vulnerability, the attacker submits an HTTP POST request with a URI for the vulnerable file path (common/FileAttachment.jsp) and the multi-part form parameter, CustomLogin. The malicious file, which is appended to the HTTP request, is automatically uploaded to a folder in the ManageEngine installation directory (.../Manageengine/servicedesk/custom/login). Later, the attacker sends a GET request to run the malicious file, which could contain malware or a web shell.

Mitigation Options

Install relevant patches for affected versions

If unable to patch, check for suspicious files in this ManageEngine installation directory, .../Manageengine/servicedesk/custom/login

MITRE ATT&CK ID

Associated content

Announcing The Forrester Wave™: Network Analysis And Visibility Solutions, Q4 2025

Network analysis and visibility solutions remain underrepresented in enterprises. Find out why in this preview of a new Wave report.

Report

ExtraHop® Named a Leader in First-Ever Gartner® Magic Quadrant™ for Network Detection and Response — ExtraHop

ExtraHop® Named a Leader in First-Ever Gartner® Magic Quadrant™ for Network Detection and Response

News

Detections

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Docs

The 2025 ExtraHop Global Threat Landscape Report: The Alarming Reality of Threat Actor Dwell Time and Deeper Network Access — ExtraHop

This analysis exposes the critical link between an organization's lack of internal visibility and the escalating cost of compromise, demanding an urgent re-evaluation of how core business assets are protected.

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ExtraHop RevealX MITRE ATT&CK Coverage 2024 — ExtraHop

Learn why you need to be wary of the claims certain network detection and response providers make about their coverage against the MITRE ATT&CK framework.

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MITRE ATT&CK - Network Detection & Response with RevealX — ExtraHop

Learn how NDR from RevealX helps security teams detect and investigate more adversary TTPs in the MITRE ATT&CK framework than rule-based tools.

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