CVE-2020-27632

https://notcve.org/view.php?id=CVE-2020-27632

In SIMATIC MV400 family versions prior to v7.0.6, the ISN generator is initialized with a constant value and has constant increments. An attacker could predict and hijack TCP sessions. En la familia SIMATIC MV400 versiones anteriores a la v7.0.6, el generador ISN es inicializado con un valor constante y presenta incrementos constantes. Un atacante podría predecir y secuestrar sesiones de TCP • https://cert-portal.siemens.com/productcert/pdf/ssa-599268.pdf https://www.cisa.gov/news-events/ics-advisories/icsa-21-042-01 https://www.forescout.com/resources/numberjack-weak-isn-generation-in-embedded-tcpip-stacks •