Omron NS HMIs 1.1 and <= 1.3 Bypass Authentication

critical Nessus Network Monitor Plugin ID 720177

Synopsis

Omron NS HMIs 1.1 through 1.3 allow remote attackers to bypass authentication via a request to the .html file.

Description

OMRON NS devices 1.1 through 1.3 allow remote attackers to bypass authentication via a direct request to the .html file for a specific screen, as demonstrated by monitor.html.

Solution

Perform vendor recommended mitigations and apply available vendor upgrades.

See Also

http://misteralfa-hack.blogspot.cl/2018/02/otomron-login-bypass.html

Plugin Details

Severity: Critical

ID: 720177

Family: SCADA

Published: 5/8/2019

Updated: 9/30/2019

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Patch Publication Date: 2/5/2018

Vulnerability Publication Date: 2/5/2018

Reference Information

CVE: CVE-2018-6624