Denial of Service Vulnerability in SCALANCE X302 and X308 Series by Siemens
CVE-2022-26334

7.5HIGH

Key Information:

Vendor
Siemens
Status
Scalance X302-7 Eec (230v)
Scalance X302-7 Eec (230v, Coated)
Scalance X302-7 Eec (24v)
Scalance X302-7 Eec (24v, Coated)
Vendor
CVE Published:
12 April 2022

Summary

A vulnerability exists in several Siemens SCALANCE models where affected devices fail to properly validate the GET parameter 'XNo' of incoming HTTP requests. This flaw may enable an unauthenticated remote attacker to exploit the vulnerability, potentially leading to a device crash.

Affected Version(s)

SCALANCE X302-7 EEC (230V, coated) All versions < V4.1.4

SCALANCE X302-7 EEC (230V) All versions < V4.1.4

SCALANCE X302-7 EEC (24V, coated) All versions < V4.1.4

References

https://cert-portal.siemens.com/productcert/pdf/ssa-83652...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.