CVE-2023-28829: siemens simatic_net_pc_software Use of Obsolete Function

Vulnerability summary

CVE-2023-28829 is a high (CVSS 8.8) Use of Obsolete Function vulnerability in siemens simatic_net_pc_software. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.3% of scored vulnerabilities.

Timeline

1. 13-06-2023
   PublishedVulnerability first disclosed.
2. 03-01-2025
   Last modifiedVulnerability information updated.

Description

A vulnerability has been identified in SIMATIC NET PC Software V14 (All versions), SIMATIC NET PC Software V15 (All versions), SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions), SIMATIC PCS 7 V9.1 (All versions), SIMATIC WinCC (All versions < V8.0), SINAUT Software ST7sc (All versions). Before SIMATIC WinCC V8, legacy OPC services (OPC DA (Data Access), OPC HDA (Historical Data Access), and OPC AE (Alarms & Events)) were used per default. These services were designed on top of the Windows ActiveX and DCOM mechanisms and do not implement state-of-the-art security mechanisms for authentication and encryption of contents.

• CWE-477Use of Obsolete FunctionThe code uses deprecated or obsolete functions, which suggests that the code has not been actively reviewed or maintained.