Security restrictions bypass in Nari PCS-9611 - CVE-2018-5447
Published: January 26, 2018
Vulnerability identifier: #VU10260
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-5447
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Nari Electric
Affected software:
Nari PCS-9611
Nari PCS-9611
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass security restrictions on the target system.
The weakness exists due to insufficient validation of user-supplied input in a service within the software. A remote attacker can bypass security restrictions and arbitrarily read/access system resources and cause DoS condition or possibly execute arbitrary code.
The weakness exists due to insufficient validation of user-supplied input in a service within the software. A remote attacker can bypass security restrictions and arbitrarily read/access system resources and cause DoS condition or possibly execute arbitrary code.
How to mitigate CVE-2018-5447
NCCIC recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:
- Minimize network exposure for all control system devices and/or systems, and ensure that they are not accessible from the Internet
- Locate control system networks and remote devices behind firewalls, and isolate them from the business network.
- When remote access is required, use secure methods, such as Virtual Private Networks (VPNs), recognizing that VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize that VPN is only as secure as the connected devices.