CVE-2017-6034

An authentication bypass by capture-replay issue was discovered in Schneider Electric Modicon Modbus Protocol. Sensitive information is transmitted in cleartext in the Modicon Modbus protocol, which may allow an attacker to replay the following commands: run, stop, upload, and download.

• CWE-294
• CWE-287

• http://www.securityfocus.com/bid/97562Third Party Advisory, VDB Entry
• https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2017/icsa-17-101-01.json
• https://ics-cert.us-cert.gov/advisories/ICSA-17-101-01Third Party Advisory, US Government Resource
• https://www.se.com/us/en/download/document/SEVD-2017-065-01/
• http://www.securityfocus.com/bid/97562Third Party Advisory, VDB Entry
• https://ics-cert.us-cert.gov/advisories/ICSA-17-101-01Third Party Advisory, US Government Resource

Published

Jun 30, 2017

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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