CVE-2017-6034 — CRITICAL (9.8)

Vulnerability Description

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.

CVSS Score

9.8

CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Schneider-Electric	Modbus Firmware	-
Schneider-Electric	Modbus	-

Related Weaknesses (CWE)

CWE-294 CWE-287

References

http://www.securityfocus.com/bid/97562Third Party AdvisoryVDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-17-101-01Third Party AdvisoryUS Government Resource
http://www.securityfocus.com/bid/97562Third Party AdvisoryVDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-17-101-01Third Party AdvisoryUS Government Resource

FAQ

What is CVE-2017-6034?

CVE-2017-6034 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 m...

How severe is CVE-2017-6034?

CVE-2017-6034 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2017-6034?

Check the references section above for vendor advisories and patch information. Affected products include: Schneider-Electric Modbus Firmware, Schneider-Electric Modbus.