Web Server Vulnerability in SCALANCE X200 and X201 Series by Siemens
CVE-2021-25669

9.8CRITICAL

Key Information:

Vendor
Siemens
Status
Scalance X200-4p Irt
Scalance X201-3p Irt
Scalance X201-3p Irt Pro
Scalance X202-2 Irt
Vendor
CVE Published:
22 April 2021

Summary

A vulnerability exists in the Siemens SCALANCE series, affecting multiple devices due to improper handling of POST requests. This flaw can lead to stack boundary issues, which may result in a denial-of-service condition or potentially allow remote code execution, enabling attackers to exploit the affected devices and compromise network integrity.

Affected Version(s)

SCALANCE X200-4P IRT All versions < 5.5.1

SCALANCE X201-3P IRT All versions < 5.5.1

SCALANCE X201-3P IRT PRO All versions < 5.5.1

References

https://cert-portal.siemens.com/productcert/pdf/ssa-18709...
x_refsource_MISC

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

.