WAGO I/O-Check Service prone to Out-of-bounds Write
CVE-2021-34569

9.8CRITICAL

Key Information:

Vendor
Wago
Status
750-81xx/xxx-xxxfw
750-82xx/xxx-xxx
752-8303/8000-0002
762-4xxx
Vendor
CVE Published:
9 November 2022

Summary

In WAGO I/O-Check Service in multiple products an attacker can send a specially crafted packet containing OS commands to crash the diagnostic tool and write memory.

Affected Version(s)

750-81xx/xxx-xxxFW FW1

750-82xx/xxx-xxx FW1

752-8303/8000-0002 FW1

References

https://cert.vde.com/en/advisories/VDE-2020-036/

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

These vulnerabilities were reported to WAGO by Uri Katz of Claroty.
.