CVE-2021-31893 Information

Description

A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions) SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3) SIMATIC PDM (All versions < V9.2) SIMATIC STEP 7 V5.X (All versions < V5.6 SP2 HF3) SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 HF2). The affected software contains a buffer overflow vulnerability while handling certain files that could allow a local attacker to trigger a denial-of-service condition or potentially lead to remote code execution.

CVSS Vector

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

Reference

https://cert-portal.siemens.com/productcert/pdf/ssa-641963.pdf

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8