Denial of Service Vulnerability in Siemens Products due to SSL/TLS Parameter Handling
CVE-2022-36324

7.5HIGH

Key Information:

Vendor

Siemens
Status
Ruggedcom Rm1224 Lte(4g) Eu
Ruggedcom Rm1224 Lte(4g) Nam
Scalance M804pb
Scalance M812-1 Adsl-router (annex A)
Vendor
CVE Published:
10 August 2022

What is CVE-2022-36324?

A vulnerability exists in certain Siemens devices where improper handling of SSL/TLS parameter renegotiation can be exploited by unauthenticated remote attackers. This vulnerability allows attackers to bypass built-in TCP brute force prevention mechanisms, potentially leading to a denial of service condition. As a result, affected devices may become unresponsive for an extended period during the attack, impacting availability and service continuity.

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Affected Version(s)

RUGGEDCOM RM1224 LTE(4G) EU All versions < V7.1.2

RUGGEDCOM RM1224 LTE(4G) NAM All versions < V7.1.2

SCALANCE M804PB All versions < V7.1.2

References

https://cert-portal.siemens.com/productcert/pdf/ssa-71000...

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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