CVE-2021-27473
Assigner: icscert
Published: 2022-03-23T19:46:36
State: PUBLISHED
affected: product: Connected Components Workbench
vendor: Rockwell Automation
versions: lessThanOrEqual: v12.00.00
status: affected
version: unspecified
versionType: custom
credits: value: Mashav Sapir of Claroty reported these vulnerabilities to Rockwell Automation.
descriptions: value: Rockwell Automation Connected Components Workbench v12.00.00 and prior does not sanitize paths specified within the .ccwarc archive file during extraction. This type of vulnerability is also commonly referred to as a Zip Slip. A local, authenticated attacker can create a malicious .ccwarc archive file that, when opened by Connected Components Workbench, will allow the attacker to gain the privileges of the software. If the software is running at SYSTEM level, the attacker will gain admin level privileges. User interaction is required for this exploit to be successful.
metrics: cvssV3_1: attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: LOW
baseScore: 6.1
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: LOW
privilegesRequired: NONE
scope: CHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
version: 3.1
problemTypes: descriptions: cweId: CWE-22
description: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
type: CWE
solutions: value: Rockwell Automation recommends users of the affected software update to an available software revision (Connected Components Workbench v13.00.00 or later) that addresses the associated risk. 
source: discovery: UNKNOWN
title: Rockwell Automation Connected Components Workbench Improper Input Validation
workarounds: value: Users who are unable to update are directed towards risk mitigation strategies provided below, and are encouraged, when possible, to combine these with Rockwell Automation’s general security guidelines to employ multiple strategies simultaneously.
If upgrade is not possible, Rockwell Automation recommends deploying 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 .ccwarc, files with Connected Components Workbench. Employ training and awareness programs to educate users on the warning signs of a phishing or social engineering attack.
    Use of Microsoft AppLocker or other similar allow list applications can help mitigate risk. Information on using AppLocker with Rockwell Automation products is available at KnowledgeBase Article QA17329 (login required).
    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.

For more information, please see the industrial security advisory from Rockwell Automation. 
x_generator: engine: Vulnogram 0.0.9