CVE-2021-27471

HIGHCVSS 8.6/10EPSS 2.74%

Last modified

CVE-2021-27471 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. 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. EPSS estimates a 2.74% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
8.6/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

EPSS Probability
2.74%

84.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RockwellautomationConnected Components Workbench<= 12.00.00

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-27471?
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.
How severe is CVE-2021-27471?
CVE-2021-27471 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 2.74% probability of exploitation in the next 30 days.
How do I fix CVE-2021-27471?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-27471?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST