Improper check for unusual or exceptional conditions in Modicon M221 - CVE-2018-7789

 

Improper check for unusual or exceptional conditions in Modicon M221 - CVE-2018-7789

Published: August 28, 2018 / Updated: August 29, 2018


Vulnerability identifier: #VU14552
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-7789
CWE-ID: CWE-703
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to improper check for unusual or exceptional conditions. A remote attacker can send use specially crafted programming protocol frames and reboot Modicon M221.


Affected software

Modicon M221

How to mitigate CVE-2018-7789

Update to version 1.6.2.0.

Modicon M221 - update to 1.6.2.0

External References

Related Security Bulletins