CVE-2020-25242 — HIGH (7.5)

Vulnerability Description

A vulnerability has been identified in SIMATIC NET CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC NET CP 343-1 Lean (incl. SIPLUS variants) (All versions), SIMATIC NET CP 343-1 Standard (incl. SIPLUS variants) (All versions). Specially crafted packets sent to TCP port 102 could cause a Denial-of-Service condition on the affected devices. A cold restart might be necessary in order to recover.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Siemens	Simatic Net Cp 343-1 Advanced Firmware	All versions
Siemens	Simatic Net Cp 343-1 Advanced	-
Siemens	Simatic Net Cp 343-1 Lean Firmware	All versions
Siemens	Simatic Net Cp 343-1 Lean	-
Siemens	Simatic Net Cp 343-1 Standard Firmware	All versions
Siemens	Simatic Net Cp 343-1 Standard	-

Related Weaknesses (CWE)

CWE-400

References

https://cert-portal.siemens.com/productcert/pdf/ssa-676775.pdfVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-676775.pdfVendor Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-131-07Third Party AdvisoryUS Government Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-676775.pdfVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-676775.pdfVendor Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-131-07Third Party AdvisoryUS Government Resource

FAQ

What is CVE-2020-25242?

CVE-2020-25242 is a vulnerability with a CVSS score of 7.5 (HIGH). A vulnerability has been identified in SIMATIC NET CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC NET CP 343-1 Lean (incl. SIPLUS variants) (All versions), SIMATIC NET CP 343-1 Stan...

How severe is CVE-2020-25242?

CVE-2020-25242 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-25242?

Check the references section above for vendor advisories and patch information. Affected products include: Siemens Simatic Net Cp 343-1 Advanced Firmware, Siemens Simatic Net Cp 343-1 Advanced, Siemens Simatic Net Cp 343-1 Lean Firmware, Siemens Simatic Net Cp 343-1 Lean, Siemens Simatic Net Cp 343-1 Standard Firmware.