CVE-2017-13997

Wonderware Indusoft Web Studio vulnerability

CVSS

9.8

EPSS

5.1%

EPSS pct

91th

Exploited

No known

A Missing Authentication for Critical Function issue was discovered in Schneider Electric InduSoft Web Studio v8.0 SP2 or prior, and InTouch Machine Edition v8.0 SP2 or prior. InduSoft Web Studio provides the capability for an HMI client to trigger script execution on the server for the purposes of performing customized calculations or actions. A remote malicious entity could bypass the server authentication and trigger the execution of an arbitrary command. The command is executed under high privileges and could lead to a complete compromise of the server.

Affected vendor

Schneider Electric

Affected product

Wonderware Indusoft Web Studio

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness type (CWE)

CWE-306 — Missing Authentication for Critical Function

Published

2017-10-03

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 5.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2017-13997

Confirm whether Schneider Electric Wonderware Indusoft Web Studio is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-13997.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-13997

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-13997 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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