CVE-2017-6034
CRITICALSchneider Electric Modicon Modbus Protocol - Authentication Bypass by Capture-Replay via Cleartext Command Transmission
Title source: llmDescription
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.
References (4)
Core 4
Core References
Third Party Advisory, US Government Resource
https://ics-cert.us-cert.gov/advisories/ICSA-17-101-01
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/97562
Scores
CVSS v3
9.8
EPSS
0.0514
EPSS Percentile
91.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-287
CWE-294
Status
published
Products (4)
None/Schneider Electric Modicon Modbus Protocol
Schneider Electric Modicon Modbus Protocol
n/a/Schneider Electric Modicon Modbus Protocol
Schneider Electric Modicon Modbus Protocol
Schneider Electric/Modicon Modbus Protocol
all versions
schneider-electric/modbus_firmware
Published
Jun 30, 2017
Tracked Since
Feb 18, 2026