← Back to CVEs

CVE-2017-7574

CRITICAL

9.8

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/6/2017

Last Modified4/20/2025

Sourcenvd

Honeypot Sightings0

Affected Products

schneider-electric:modicon_tm221ce16rschneider-electric:modicon_tm221ce16r_firmwareschneider-electric:somachine

Weaknesses (CWE)

CWE-798

References

http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2017-097-01(cve@mitre.org)

http://www.securityfocus.com/bid/97518(cve@mitre.org)

https://os-s.net/advisories/OSS-2017-02.pdf(cve@mitre.org)

http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2017-097-01(af854a3a-2127-422b-91ae-364da2661108)

http://www.securityfocus.com/bid/97518(af854a3a-2127-422b-91ae-364da2661108)

https://os-s.net/advisories/OSS-2017-02.pdf(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.