CVE-2020-15791
6.5 · MEDIUMOverview
CVE-2020-15791 is a medium-severity vulnerability affecting siemens simatic_s7-300_cpu_312_firmware. It was published on September 9, 2020 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC S7-400 CPU family (incl. SIPLUS variants) (All versions), SIMATIC WinAC RTX (F) 2010 (All versions), SINUMERIK 840D sl (All versions). The authentication protocol between a client and a PLC via port 102/tcp (ISO-TSAP) insufficiently protects the transmitted password. This could allow an attacker that is able to intercept the network traffic to obtain valid PLC credentials.
Remediation
Check the references section for vendor advisories and patches from siemens. Update simatic_s7-300_cpu_312_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
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Frequently Asked Questions
What is CVE-2020-15791?
CVE-2020-15791 is a medium-severity vulnerability affecting siemens simatic_s7-300_cpu_312_firmware. It was published on September 9, 2020 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2020-15791?
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2020-15791?
Check the references section for vendor advisories and patches from siemens. Update simatic_s7-300_cpu_312_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-15791?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-15791 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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