External risk intelligence

PNPSCADA SQL Injection Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2020-24841

PNPSCADA is a supervisory control and data acquisition (SCADA) monitoring application. Such platforms are commonly deployed as web-based interfaces to allow remote monitoring and management of industrial or infrastructure assets, making them frequent candidates for internet-facing web deployment.

SQL Injection

Sdg Pnpscada

2.200816204020

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

This advisory concerns a critical vulnerability in the PNPSCADA system, a type of software used for industrial control and data monitoring. The flaw could potentially allow unauthorized access to sensitive data and system compromise.

SQL injection vulnerability in SCADA software.
Affects industrial control and monitoring systems.
Confirm relevance and exposure to critical infrastructure.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this vulnerability by sending a specially crafted request to the application's `/browse.jsp` page. This request would target the `interf` parameter, triggering an SQL injection flaw. If successful, this could allow the attacker to take control of the application, alter or steal data, or exploit other weaknesses in the database.

No authentication required to access.
SQL injection via the 'interf' parameter.
Compromise application, modify data, or exploit database.

Live Threat

Current exploitation, exposure, and threat context

An attacker could compromise the application by exploiting a SQL injection vulnerability through the 'interf' parameter in browse.jsp. This could lead to unauthorized access, modification, or deletion of data stored within the underlying database.

Application data and underlying database.
Via network with no authentication.
Unauthorized data access and modification.

Operational Fix

Recommended remediation, mitigation, and detection steps

This critical vulnerability in PNPSCADA affects its web interface, presenting a significant risk to data integrity and application security. Technical leaders and system owners should prioritize identifying all instances of this SCADA application, verifying network exposure, and confirming business criticality to scope the impact. The primary next step involves engaging the relevant application or infrastructure teams responsible for PNPSCADA to determine accountability and plan a coordinated response, considering vendor coordination for potential patches or mitigation strategies.

Application and infrastructure teams own the issue.
Verify network exposure and business criticality first.
Plan remediation based on confirmed risk and vendor input.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

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Frequently asked questions

What is PNPSCADA?

PNPSCADA is a web-based supervisory control and data acquisition (SCADA) platform. Organizations use it to monitor and manage industrial processes or critical infrastructure assets remotely through a centralized interface.

How does CVE-2020-24841 work?

This vulnerability is a SQL injection (CWE-89) flaw. It occurs when an application fails to properly sanitize user input, allowing an attacker to inject malicious database queries. In this case, the weakness exists within the software's ability to process data, which can lead to unauthorized access, data modification, or full system compromise.

Do I need to be logged in to trigger this bug?

No. The vulnerability does not require authentication. An attacker can trigger the issue by sending a specifically crafted request containing malicious input to the 'interf' parameter on the browse.jsp page. Standard, legitimate interactions with the application's interface that do not involve malformed input parameters do not trigger this flaw.

Why should I worry about this if PNPSCADA is internal?

Halo Surface Signal indicates that PNPSCADA is often deployed as an internet-facing web interface for remote management. If your instance is reachable from the public internet, it faces a higher risk of being discovered and targeted. Internal-only instances still face risks from compromised internal machines, but internet-exposed systems are typically the primary focus for this attack path.

How do I start addressing this vulnerability?

Begin by identifying all PNPSCADA instances within your environment and verifying their network exposure. Once identified, coordinate with the infrastructure or application teams responsible for the system. Confirm the business criticality of the software to prioritize your response, and contact the vendor to discuss available updates or specific mitigation configurations for your deployment.

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.