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CVE-2017-7574

9.8 · CRITICAL

Schneider Electric SoMachine Basic 1.4 SP1 and Schneider Electric Modicon TM221CE16R 1.3.3.3 devices have a hardcoded-key vulnerability.

Published Apr 6, 2017CWE-798EPSS 1.25%

Overview

CVE-2017-7574 is a critical-severity vulnerability. It was published on April 6, 2017 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Schneider Electric SoMachine Basic 1.4 SP1 and Schneider Electric Modicon TM221CE16R 1.3.3.3 devices have a hardcoded-key vulnerability. The Project Protection feature is used to prevent unauthorized users from opening an XML protected project file, by prompting the user for a password. This XML file is AES-CBC encrypted; however, the key used for encryption (SoMachineBasicSoMachineBasicSoMa) cannot be changed. After decrypting the XML file with this key, the user password can be found in the decrypted data. After reading the user password, the project can be opened and modified with the Schneider product.

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

Refdownload.schneider-electric.com/files?p_Doc_Ref=SEVD-2017-097-01Refwww.securityfocus.com/bid/97518Refos-s.net/advisories/OSS-2017-02.pdfRefdownload.schneider-electric.com/files?p_Doc_Ref=SEVD-2017-097-01Refwww.securityfocus.com/bid/97518Refos-s.net/advisories/OSS-2017-02.pdf

How CyberStrike helps

Frequently asked questions

What is CVE-2017-7574?

CVE-2017-7574 is a critical-severity vulnerability. It was published on April 6, 2017 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2017-7574?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2017-7574?

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-2017-7574?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-7574 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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