title: AVEVA InTouch Access Anywhere Exposure of Resource to Wrong Sphere
description: Windows OS can be configured to overlay a “language bar” on top of any application. When this OS functionality is enabled, the OS language bar UI will be viewable in the browser alongside the AVEVA InTouch Access Anywhere and Plant SCADA Access Anywhere applications. It is possible to manipulate the Windows OS language bar to launch an OS command prompt, resulting in a context-escape from application into OS.
problem types: CWE-668: Exposure of Resource to Wrong Sphere
affected:
{
product: AVEVA InTouch Access Anywhere
vendor: AVEVA
versions:
status: affected, version: all
}
{
product: AVEVA Plant SCADA Access Anywhere
vendor: AVEVA
versions:
status: affected, version: all
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: LOW
baseScore: 7.4
baseSeverity: HIGH
confidentialityImpact: LOW
integrityImpact: LOW
privilegesRequired: LOW
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
version: 3.1
]
workarounds: AVEVA recommends the following mitigations:
Disable the Windows language bar on the server machine hosting InTouch Access Anywhere and Plant SCADA Access Anywhere applications unless it is required.
Create unique user accounts with minimal privileges dedicated only to remote access of InTouch Access Anywhere and Plant SCADA Access Anywhere applications.
Utilize OS group policy objects (GPOs) to further restrict what those unique user accounts are allowed to do.
Restrict access based on Microsoft’s recommended block list.
For more information on this vulnerability, including security updates, please see security bulletin AVEVA-2022-001