WAGO: PFC200 Access to files outside the home directory
CVE-2021-21001

9.1CRITICAL

Key Information:

Vendor
Wago
Status
Series Pfc200 Controller
Series Ethernet Controller
Vendor
CVE Published:
24 May 2021

Summary

On WAGO PFC200 devices in different firmware versions with special crafted packets an authorised attacker with network access to the device can access the file system with higher privileges.

Affected Version(s)

Series Ethernet Controller 750-8202/xxx-xxx < 03.06.19 (18)

Series Ethernet Controller 750-8203/xxx-xxx < 03.06.19 (18)

Series Ethernet Controller 750-8204/xxx-xxx < 03.06.19 (18)

References

https://cert.vde.com/en-us/advisories/vde-2021-014
x_refsource_CONFIRM

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

These vulnerabilities were reported by JSC Positive Technologies (Vyacheslav Moskvin, Anton Dorfman, Sergey Fedonin, Ivan Kurnakov, Denis Goryushev). Coordination done by CERT@VDE.
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