Rewterz Threat Advisory – ICS: Honeywell Experion PKS and ACE Controllers

Severity

High

Analysis Summary

CVE-2021-38397

The affected product is vulnerable to unrestricted file uploads, which may allow an attacker to remotely execute arbitrary code and cause a denial-of-service condition.

CVE-2021-38395 

The affected product is vulnerable to improper neutralization of special elements in output, which may allow an attacker to remotely execute arbitrary code and cause a denial-of-service condition.

CVE-2021-38399

The affected product is vulnerable to relative path traversal, which may allow an attacker access to unauthorized files and directories.

Impact

• Remote Code Execution
• Denial of Service

Affected Vendors

• Honeywell

Affected Products

• C200: All versions
• C200E: All versions
• C300 and ACE controllers: All versions

Remediation

Refer to US-CERT Advisory for patch, upgrade, or suggested workaround information.