WID-SEC-W-2023-1987

csafDEcert_bund

DeutschShown in its original language — a full translation is planned for a future version.

TCP/IP Stack: Mehrere Schwachstellen

view advisory published 2021-02-11

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in TCP/IP Stack ausnutzen, um beliebigen Programmcode auszuführen, einen Denial-of-Service-Zustand herbeiführen oder Sicherheitsvorkehrungen umgehen.

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describes (9)

Related CVEs.

IDseverity exploitable
CVE-2020-27636UScritical9.1OT elevated—
In Microchip MPLAB Net 3.6.1, TCP ISNs are improperly random.
CVE-2020-27635UScritical9.1OT elevated—
In PicoTCP 1.7.0, TCP ISNs are improperly random.
CVE-2020-27634UScritical9.1OT elevated—
In Contiki 4.5, TCP ISNs are improperly random.
CVE-2020-27633UScritical9.1OT elevated—
In FNET 4.6.3, TCP ISNs are improperly random.
CVE-2020-27631UScritical9.8OT elevated—
In Oryx CycloneTCP 1.9.6, TCP ISNs are improperly random.
CVE-2020-27630UScritical9.8OT elevated—
In Silicon Labs uC/TCP-IP 3.6.0, TCP ISNs are improperly random.
CVE-2020-27213UShigh7.5OT elevated—
An issue was discovered in Ethernut Nut/OS 5.1. The code that generates Initial Sequence Numbers (ISNs) for TCP connections derives the ISN from an insufficiently random source. As…
CVE-2020-27632UShigh7.5OT elevated—
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 sessi…
CVE-2020-28388USmedium5.3OT elevated—
A vulnerability has been identified in APOGEE PXC Compact (BACnet) (All versions < V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.20), APOGEE PXC Modular (BACnet) (…
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references

External citations — patches, advisories, analysis.

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