CVE-2021-27471
This may allow an attacker to craft malicious files that, when opened by Rockwell Automation Connected Components Workbench v12.00.00 and prior, can traverse the file system.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.86%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The parsing mechanism that processes certain file types does not provide input sanitization for file paths. This may allow an attacker to craft malicious files that, when opened by Rockwell Automation Connected Components Workbench v12.00.00 and prior, can traverse the file system. If successfully exploited, an attacker could overwrite existing files and create additional files with the same permissions of the Connected Components Workbench software. User interaction is required for this exploit to be successful.
- CVSS 3.1
- 8.6 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- EPSS
- 2.86% probability · 86th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- rockwellautomation/connected components workbench
- Source
- ics-cert@hq.dhs.gov
References
- https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1131435Permissions Required, Vendor Advisory
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-133-01Third Party Advisory, US Government Resource
- https://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1131435Permissions Required, Vendor Advisory
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-133-01Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.