CVE-2023-42797: siemens cp-8031 master module Use of Uninitialized Resource

Vulnerability summary

CVE-2023-42797 is a high (CVSS 7.2) Use of Uninitialized Resource vulnerability in siemens cp-8031 master module. EPSS estimates a 0.55% chance of exploitation in the next 30 days, higher than 45% of scored vulnerabilities.

Timeline

1. 09-01-2024
   PublishedVulnerability first disclosed.
2. 03-06-2025
   Last modifiedVulnerability information updated.

Description

A vulnerability has been identified in CP-8031 MASTER MODULE (All versions < CPCI85 V05.20), CP-8050 MASTER MODULE (All versions < CPCI85 V05.20). The network configuration service of affected devices contains a flaw in the conversion of ipv4 addresses that could lead to an uninitialized variable being used in succeeding validation steps. By uploading specially crafted network configuration, an authenticated remote attacker could be able to inject commands that are executed on the device with root privileges during device startup.

• CWE-908Use of Uninitialized ResourceThe product uses or accesses a resource that has not been initialized.