#VU65268 Resource management error in Siemens products - CVE-2022-29884

Vulnerability identifier: #VU65268

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-29884

CWE-ID: CWE-399

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
CP-8000 MASTER MODULE WITH I/O -25/+70°C
Hardware solutions / Routers & switches, VoIP, GSM, etc
CP-8000 MASTER MODULE WITH I/O -40/+70°C
Hardware solutions / Routers & switches, VoIP, GSM, etc
CP-8021 MASTER MODULE
Hardware solutions / Routers & switches, VoIP, GSM, etc
CP-8022 MASTER MODULE WITH GPRS
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Siemens

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the affected device does not properly free resources. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

CP-8000 MASTER MODULE WITH I/O -25/+70°C : before 16.30

CP-8000 MASTER MODULE WITH I/O -40/+70°C: before 16.30

CP-8021 MASTER MODULE: before 16.30

CP-8022 MASTER MODULE WITH GPRS: before 16.30

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External links
https://cert-portal.siemens.com/productcert/pdf/ssa-491621.pdficsa-22-195-14

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.