Improper Check for Unusual or Exceptional Conditions in BMXNOR0200H Ethernet / Serial RTU module - CVE-2019-6831
Published: October 2, 2019
Vulnerability identifier: #VU21480
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-6831
CWE-ID:
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Schneider Electric
Affected software:
BMXNOR0200H Ethernet / Serial RTU module
BMXNOR0200H Ethernet / Serial RTU module
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service (DoS) condition.
The vulnerability exits due to the affected software does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the software. A remote attacker can send an unusually high number of IEC 60870-5-104 packets to the module on port 2404/TCP, cause disconnection of active connections and perform a denial of service attack.
How to mitigate CVE-2019-6831
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.