Memory Corruption in EN100 Ethernet Modules by Siemens
CVE-2022-30938

7.5HIGH

Key Information:

Vendor

Siemens
Status
En100 Ethernet Module Dnp3 Ip Variant
En100 Ethernet Module Iec 104 Variant
En100 Ethernet Module Iec 61850 Variant
En100 Ethernet Module Modbus Tcp Variant
Vendor
CVE Published:
12 July 2022

What is CVE-2022-30938?

A vulnerability exists within Siemens' EN100 Ethernet modules that can be exploited through specifically crafted HTTP packets. When an attacker targets the /txtrace endpoint and manipulates a particular argument, it results in a memory corruption issue. This can cause the affected application to crash, leading to a denial of service condition, impacting the availability of the services relying on these modules.

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Affected Version(s)

EN100 Ethernet module DNP3 IP variant All versions

EN100 Ethernet module IEC 104 variant All versions

EN100 Ethernet module IEC 61850 variant All versions < V4.40

References

https://cert-portal.siemens.com/productcert/pdf/ssa-86533...
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

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