CVE-2021-25667 Information

Description

A vulnerability has been identified in RUGGEDCOM RM1224 (All versions >= V4.3 and < V6.4) SCALANCE M-800 (All versions >= V4.3 and < V6.4) SCALANCE S615 (All versions >= V4.3 and < V6.4) SCALANCE SC-600 Family (All versions >= V2.0 and < V2.1.3) SCALANCE XB-200 (All versions < V4.1) SCALANCE XC-200 (All versions < V4.1) SCALANCE XF-200BA (All versions < V4.1) SCALANCE XM400 (All versions < V6.2) SCALANCE XP-200 (All versions < V4.1) SCALANCE XR-300WG (All versions < V4.1) SCALANCE XR500 (All versions < V6.2). Affected devices contain a stack-based buffer overflow vulnerability in the handling of STP BPDU frames that could allow a remote attacker to trigger a denial-of-service condition or potentially remote code execution. Successful exploitation requires the passive listening feature of the device to be active.

CVSS Vector

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

Reference

https://cert-portal.siemens.com/productcert/pdf/ssa-979775.pdf https://us-cert.cisa.gov/ics/advisories/icsa-21-068-03

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8