CVE-2021-27428
Assigner: icscert
Published: 2022-03-23T19:46:25
State: PUBLISHED
affected: product: UR family
vendor: GE
versions: lessThan: 8.1x
status: affected
version: unspecified
versionType: custom
credits: value: SCADA-X, DOE’s Cyber Testing for Resilient Industrial Control Systems (CyTRICS) program, Verve Industrial, and VuMetric reported these vulnerabilities to GE.
descriptions: value: GE UR IED firmware versions prior to version 8.1x supports upgrading firmware using UR Setup configuration tool – Enervista UR Setup. This UR Setup tool validates the authenticity and integrity of firmware file before uploading the UR IED. An illegitimate user could upgrade firmware without appropriate privileges. The weakness is assessed, and mitigation is implemented in firmware Version 8.10.
metrics: cvssV3_1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 9.8
baseSeverity: CRITICAL
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
version: 3.1
problemTypes: descriptions: cweId: CWE-434
description: CWE-434 Unrestricted Upload of File with Dangerous Type
type: CWE
solutions: value: GE strongly recommends users with impacted firmware versions update their UR devices to UR firmware Version 8.10, or greater to resolve these vulnerabilities. GE provides additional mitigations and information about these vulnerabilities in GE Publication Number: GES-2021-004 (login required).
source: discovery: EXTERNAL
title: GE UR family Unrestricted Upload of File with Dangerous Type
workarounds: value: GE recommends protecting UR IED by using network defense-in-depth practices. This includes, but is not limited to, placing UR IED inside the control system network security perimeter, and having access controls, monitoring (such as an Intrusion Detection System), and other mitigating technologies in place. 

GE recommends users refer to the UR Deployment guide for secure configuration of UR IED and system.
x_generator: engine: Vulnogram 0.0.9