Vulnerability Monitor

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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.

Published

2017-06-30T03:29:00.453

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Secondary
CWE-294
Type: Primary
CWE-287

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	schneider-electric	modbus_firmware	-	Yes
Hardware	schneider-electric	modbus	-	No

References

http://www.securityfocus.com/bid/97562 Third Party Advisory, VDB Entry ([email protected])
https://ics-cert.us-cert.gov/advisories/ICSA-17-101-01 Third Party Advisory, US Government Resource ([email protected])
http://www.securityfocus.com/bid/97562 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://ics-cert.us-cert.gov/advisories/ICSA-17-101-01 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)