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.

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)

EPSS: 0.008 (51.9th percentile) — read the EPSS interpretation.

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.

Affected products

Rockwell Automation Connected Components Workbench — versions unspecified
Rockwellautomation Connected_components_workbench

Weakness classification (CWE)

CWE-22 — Path Traversal

References

ics-cert@hq.dhs.gov (x_refsource_CONFIRM, US Government Resource, Third Party Advisory)
ics-cert@hq.dhs.gov (Vendor Advisory, Permissions Required, x_refsource_CONFIRM)

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.