CVE-2022-46352 Denial of service in SCALANCE X204RNA (HSR)

What is CVE-2022-46352?

CVE-2022-46352 is a high-severity denial of service vulnerability in Siemens SCALANCE X204RNA (HSR), published on 13 Dec 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability has been identified in SCALANCE X204RNA (HSR) (All versions < V3.2.7), SCALANCE X204RNA (PRP) (All versions < V3.2.7), SCALANCE X204RNA EEC (HSR) (All versions < V3.2.7), SCALANCE X204RNA EEC (PRP) (All versions < V3.2.7), SCALANCE X204RNA EEC (PRP/HSR) (All versions < V3.2.7). Specially crafted PROFINET DCP packets could cause a denial of service condition of affected products.

Weakness: CWE-400

Which versions are affected by CVE-2022-46352?

It affects 5 products.

Products include Siemens 6gk5204-0ba00-2kb2 Firmware, Siemens 6gk5204-0ba00-2mb2 Firmware, Siemens 6gk5204-0bs00-2na3 Firmware, Siemens 6gk5204-0bs00-3la3 Firmware, Siemens 6gk5204-0bs00-3pa3 Firmware.

How do I fix CVE-2022-46352?

No fix has been published for CVE-2022-46352 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-46352 being exploited?

There is no known exploitation of CVE-2022-46352 in the wild and no public exploit code.

Other vulnerabilities in Siemens SCALANCE X204RNA (HSR)

• CVE-2022-46353 Weak cryptography in SCALANCE X204RNA (HSR) Critical 9.8
• CVE-2022-46355 Information disclosure in SCALANCE X204RNA (HSR) High 7.5
• CVE-2022-46350 Cross-site scripting in SCALANCE X204RNA (HSR) Medium 6.1
• CVE-2022-46351 Denial of service in SCALANCE X204RNA (HSR) Medium 5.5
• CVE-2022-46354 Information disclosure in SCALANCE X204RNA (HSR) Medium 5.3

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-8hgr-9vmc-8gqj.