CVE-2022-43501 - KASAGO TCP/IP stack provided by Zuken Elmic generates ISNs(Initial Sequence Number) for TCP connections from an insufficiently random source

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CRITICAL

KASAGO TCP/IP stack provided by Zuken Elmic generates ISNs(Initial Sequence Number) for TCP connections from an insufficiently random source

Published Feb 10, 2023

9.1

CRITICAL

CVSS 3.1

EPSS 0.56%

Description

KASAGO TCP/IP stack provided by Zuken Elmic generates ISNs(Initial Sequence Number) for TCP connections from an insufficiently random source. An attacker may be able to determine the ISN of the current or future TCP connections and either hijack existing ones or spoof future ones.

Affected products

Vendor ZUKEN Elmic Product Kasago IPv4 Default
n/a
- Version
  prior to Ver6.0.1.34
  Status
  affected
  Constraints
  -
Vendor ZUKEN Elmic Product Kasago IPv4 Light Default
n/a
- Version
  prior to Ver6.0.1.34
  Status
  affected
  Constraints
  -
Vendor ZUKEN Elmic Product Kasago IPv6/v4 Dual Default
n/a
- Version
  prior to Ver6.0.1.34
  Status
  affected
  Constraints
  -
Vendor ZUKEN Elmic Product Kasago mobile IPv6 Default
n/a
- Version
  prior to Ver6.0.1.34
  Status
  affected
  Constraints
  -