Security restrictions bypass in Modicon M221 - CVE-2018-7791
Published: August 29, 2018
Vulnerability identifier: #VU14554
CSH Severity: Low
CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-7791
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass security restrictions on the target system.
The vulnerability exists due to improper privileges and access controls. A remote attacker can overwrite the password and upload the original program from the PLC.
Affected software
Modicon M221
How to mitigate CVE-2018-7791
Update to version 1.6.2.0.
Modicon M221 - update to 1.6.2.0