CVE-2019-6831 — HIGH (8.6) — White Hats Nepal

Vulnerability Description

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in BMXNOR0200H Ethernet / Serial RTU module (all firmware versions), which could cause disconnection of active connections when an unusually high number of IEC 60870- 5-104 packets are received by the module on port 2404/TCP.

CVSS Score

8.6

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Schneider-Electric	Bmxnor0200H Firmware	All versions
Schneider-Electric	Bmxnor0200H	-

Related Weaknesses (CWE)

CWE-754

References

https://security.cse.iitk.ac.in/responsible-disclosureBroken Link
https://www.schneider-electric.com/en/download/document/SEVD-2019-225-03/Vendor Advisory
https://security.cse.iitk.ac.in/responsible-disclosureBroken Link
https://www.schneider-electric.com/en/download/document/SEVD-2019-225-03/Vendor Advisory

FAQ

What is CVE-2019-6831?

CVE-2019-6831 is a vulnerability with a CVSS score of 8.6 (HIGH). A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in BMXNOR0200H Ethernet / Serial RTU module (all firmware versions), which could cause disconnection of active conn...

How severe is CVE-2019-6831?

CVE-2019-6831 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-6831?

Check the references section above for vendor advisories and patch information. Affected products include: Schneider-Electric Bmxnor0200H Firmware, Schneider-Electric Bmxnor0200H.