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CVE-2017-6030

6.5 · MEDIUM

A predictable value range from previous values issue was discovered in Schneider Electric Modicon PLCs Modicon M221, firmware versions prior to Version 1.5.0.0, Modicon M241, firmware versions prio…

Published Jun 30, 2017CWE-343EPSS 2.14%

Overview

CVE-2017-6030 is a medium-severity vulnerability. It was published on June 30, 2017 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A predictable value range from previous values issue was discovered in Schneider Electric Modicon PLCs Modicon M221, firmware versions prior to Version 1.5.0.0, Modicon M241, firmware versions prior to Version 4.0.5.11, and Modicon M251, firmware versions prior to Version 4.0.5.11. The affected products generate insufficiently random TCP initial sequence numbers that may allow an attacker to predict the numbers from previous values. This may allow an attacker to spoof or disrupt TCP connections.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.securityfocus.com/bid/97254GitHubgithub.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2017/icsa-17-089-02.jsonRefics-cert.us-cert.gov/advisories/ICSA-17-089-02Refwww.securityfocus.com/bid/97254Refics-cert.us-cert.gov/advisories/ICSA-17-089-02

How CyberStrike helps

Frequently asked questions

What is CVE-2017-6030?

CVE-2017-6030 is a medium-severity vulnerability. It was published on June 30, 2017 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2017-6030?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2017-6030?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-6030?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-6030 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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