CVE-2021-34597

Phoenix Contact: PC Worx/-Express prone to improper input validation vulnerability

Description

Improper Input Validation vulnerability in PC Worx Automation Suite of Phoenix Contact up to version 1.88 could allow an attacker with a manipulated project file to unpack arbitrary files outside of the selected project directory.

Remediation

Solution:

  • With the next version of Automation Worx Software Suite additional plausibility checks for archive content will be implemented.

Workaround:

  • Temporary Fix / Mitigation We strongly recommend customers to exchange project files only using secure file exchange services. Project files should not be exchanged via unencrypted email. In addition, we recommend exchanging or storing project files together with a checksum to ensure their integrity.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.16%
Third-Party Advisory vde.com
Affected: Phoenix Contact PC Worx
Published at:
Updated at:

References

Link Tags
https://cert.vde.com/en/advisories/VDE-2021-052/ mitigation third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-34597?
CVE-2021-34597 has been scored as a high severity vulnerability.
How to fix CVE-2021-34597?
To fix CVE-2021-34597: With the next version of Automation Worx Software Suite additional plausibility checks for archive content will be implemented.
Is CVE-2021-34597 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-34597 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-34597?
CVE-2021-34597 affects Phoenix Contact PC Worx.
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