External risk intelligence

Hirschmann Industrial HiVision Authentication Bypass Leads to Remote Code Execution.

CVE advisorySeverity: CRITICAL (CVSS 9.3)

CVE-2017-20237

Hirschmann Industrial HiVision is a network management software designed for industrial control systems (ICS). While the service is network-reachable, these products are typically deployed within isolated operational technology (OT) or internal corporate networks rather than being exposed directly to the public internet.

Authentication Bypass

Halo Surface Signal: 2 out of 5 — less likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A vulnerability in Hirschmann Industrial HiVision's master service could allow unauthenticated remote attackers to execute arbitrary commands with administrative privileges. This could potentially lead to unauthorized control over the underlying operating system if the affected interface is exposed.

Bypass authentication to gain system control.
High-impact vulnerability in industrial network management.
Confirm relevance and assess potential exposure.

Attack Path

How an attacker could exploit the issue

An unauthenticated attacker could remotely access the master service of Hirschmann Industrial HiVision and bypass its authentication mechanisms. This allows the attacker to execute arbitrary commands with administrative privileges on the underlying operating system.

No prior authentication required.
Invokes exposed interface methods remotely.
Remote command execution with admin privileges.

Live Threat

Current exploitation, exposure, and threat context

An authentication bypass vulnerability in Hirschmann Industrial HiVision's master service could allow unauthenticated remote attackers to execute arbitrary commands with administrative privileges. This could occur when exposed interface methods are invoked over the remote service, bypassing authentication and leading to remote code execution on the underlying operating system.

Underlying operating system command execution.
Via exposed interface methods over remote service.
Arbitrary command execution with admin privileges.

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability affects Hirschmann Industrial HiVision, a product commonly found in industrial control systems. Responsibility for addressing this likely falls to the teams managing OT infrastructure and security, potentially in coordination with application or vendor management if applicable. The immediate first step should be to identify all instances of the affected software, determine their network exposure and criticality, and then confirm the accountable owner for remediation planning.

Identify and confirm asset owners.
Verify network exposure and criticality.
Plan remediation based on confirmed risk.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

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Frequently asked questions

What is Hirschmann Industrial HiVision?

Hirschmann Industrial HiVision is specialized network management software used to monitor and configure devices within industrial control systems (ICS). It helps administrators maintain network health and manage traffic across hardware typically found in manufacturing or critical infrastructure environments, ensuring reliable communication for operational technology.

What is the vulnerability in CVE-2017-20237?

This vulnerability is an authentication bypass, classified as CWE-287. It means the software fails to verify the identity of a user before granting access. By exploiting this flaw in the master service, an attacker can trick the system into accepting commands without providing valid credentials, effectively gaining administrative control over the underlying operating system.

How does an attacker trigger this vulnerability?

An attacker triggers this by remotely invoking specific interface methods within the master service. Because the service incorrectly handles these requests, the authentication process is skipped entirely. Simply interacting with the service through standard network communication is enough; the bug is not triggered by user-level actions like clicking a link or opening a file, but rather by unauthorized direct communication with the management software itself.

Is my system at risk?

According to Halo Surface Signal, this software is typically deployed within isolated operational technology or internal corporate networks, making public internet exposure unlikely. However, if your specific installation is reachable via the internet, the risk level increases significantly because remote attackers could attempt to exploit the service without needing a local presence on your network.

What should I do if I use this software?

Begin by identifying all running instances of Industrial HiVision within your environment. Once you have a complete inventory, verify whether any instances are accessible from outside your internal network. Coordinate with your infrastructure and security teams to assess the criticality of these assets and prioritize them for updates or restricted network access to mitigate the risk of unauthorized command execution.

References

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.