Vulnerability CVE-2019-6813
Published: 2019-09-17

Description:
A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in BMXNOR0200H Ethernet / Serial RTU module (all firmware versions) and Modicon M340 controller (all firmware versions), which could cause denial of service when truncated SNMP packets on port 161/UDP are received by the device.

Type:

CWE-754

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.8/10
6.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Schneider-electric -> Bmxnor0200h firmware 
Schneider-electric -> Modicon m340 firmware 

 References:
https://security.cse.iitk.ac.in/responsible-disclosure
https://www.schneider-electric.com/en/download/document/SEVD-2019-225-02/
https://www.schneider-electric.com/en/download/document/SEVD-2019-225-03/
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