Path Traversal in Rockwell Automation Connected Components Workbench
CVE-2021-27473
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.008 (54.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.cisa.gov/uscert/ics/advisories/icsa-21-133-01 (US Government Resource, Third Party Advisory)
- rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1131435 (Vendor Advisory, Permissions Required)
Frequently asked questions
- What is CVE-2021-27473?
- CVE-2021-27473 is a medium-severity vulnerability in Rockwell Automation Connected Components Workbench, classified under Path Traversal. CVSS score: 6.1/10. Published 2022-03-23.
- How severe is CVE-2021-27473?
- Medium severity. CVSS v3 base score is 6.1 out of 10.