CVE-2019-6576
MediumCVSS 6.5Summary
Zidentyfikowano podatność w panelach HMI SIMATIC Comfort oraz innych urządzeniach, które mogą być narażone na uzyskanie klucza sesji TLS przez atakującego z dostępem do sieci. Atakujący, obserwując ruch TLS, może odszyfrować komunikację między użytkownikiem a urządzeniem.
Risk Assessment
Podatność ta może wpłynąć na poufność komunikacji między urządzeniem a użytkownikiem, co stwarza ryzyko ujawnienia wrażliwych informacji. W przypadku wykorzystania tej luki, atakujący może przejąć kontrolę nad danymi przesyłanymi w sesji TLS.
Recommendation
Zaleca się aktualizację wszystkich dotkniętych urządzeń do wersji V15.1 Update 1 lub nowszej, aby zniwelować ryzyko związane z tą podatnością. Dodatkowo, monitorowanie ruchu sieciowego oraz ograniczenie dostępu do urządzeń może zwiększyć bezpieczeństwo.
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Original NVD description (English source)
A vulnerability has been identified in SIMATIC HMI Comfort Panels 4" - 22" (All versions < V15.1 Update 1), SIMATIC HMI Comfort Outdoor Panels 7" & 15" (All versions < V15.1 Update 1), SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 und KTP900F (All versions < V15.1 Update 1), SIMATIC WinCC Runtime Advanced (All versions < V15.1 Update 1), SIMATIC WinCC Runtime Professional (All versions < V15.1 Update 1), SIMATIC WinCC (TIA Portal) (All versions < V15.1 Update 1), SIMATIC HMI Classic Devices (TP/MP/OP/MP Mobile Panel) (All versions). An attacker with network access to affected devices could potentially obtain a TLS session key. If the attacker is able to observe TLS traffic between a legitimate user and the device, then the attacker could decrypt the TLS traffic. The security vulnerability could be exploited by an attacker who has network access to the web interface of the device and who is able to observe TLS traffic between legitimate users and the web interface of the affected device. The vulnerability could impact the confidentiality of the communication between the affected device and a legitimate user. At the time of advisory publication no public exploitation of the security vulnerability was known.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

