Vulnerability Details : 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 category: Directory traversal
Products affected by CVE-2021-27473
- cpe:2.3:a:rockwellautomation:connected_components_workbench:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-27473
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 27 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-27473
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.9
|
MEDIUM | AV:L/AC:M/Au:N/C:C/I:C/A:C |
3.4
|
10.0
|
NIST | |
|
6.1
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L |
1.8
|
3.7
|
ICS-CERT | |
|
8.2
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
1.5
|
6.0
|
NIST |
CWE ids for CVE-2021-27473
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by:
- ics-cert@hq.dhs.gov (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2021-27473
-
https://www.cisa.gov/uscert/ics/advisories/icsa-21-133-01
Rockwell Automation Connected Components Workbench | CISAThird Party Advisory;US Government Resource
-
https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1131435
Rockwell Automation - Sign InPermissions Required;Vendor Advisory
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