title: ICSA-22-088-01 Rockwell Automation ISaGRAF
description: When opening a malicious solution file provided by an attacker, the application suffers from an XML external entity vulnerability due to an unsafe call within a dynamic link library file. An attacker could exploit this to pass data from local files to a remote web server, leading to a loss of confidentiality.
problem types: CWE-611 Improper Restriction of XML External Entity Reference ('XXE')
affected:
{
product: Connected Component Workbench
vendor: Rockwell Automation
versions:
lessThan: 12, status: affected, version: All, versionType: custom
}
{
product: ISaGRAF
vendor: Rockwell Automation
versions:
lessThan: 6.6.9, status: affected, version: All, versionType: custom
}
{
product: Safety Instrumented Systems Workstation
vendor: Rockwell Automation
versions:
lessThan: 1.1, status: affected, version: All, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: NONE
baseScore: 5.5
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
version: 3.1
]
solutions: Rockwell Automation encourages users to update to the available software revisions below:
Connected Component Workbench: Update to v13.00
ISaGRAF Workbench: For now, use mitigations listed until a patch is released. More mitigation actions are planned.
Safety Instrumented Systems Workstation: Update to v1.2
workarounds: If an upgrade is not possible or available, users should apply the following mitigations:
Run Connected Components Workbench as a User, not as an Administrator, to minimize the impact of malicious code on the infected system.
Do not open untrusted files with Connected Component Workbench, ISaGRAF, SISW. Employ training and awareness programs to educate users on the warning signs of a phishing or social engineering attack.
Use Microsoft AppLocker or other similar allow list application to help mitigate risk. Information on using AppLocker with Rockwell Automation products is available at KnowledgeBase Article QA17329
Ensure the least-privilege user principle is followed, and user/service account access to shared resources (such as a database) is only granted with a minimum number of rights as needed.