CVE-2022-43501
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.
- Score
- CVSS 3.1 9.1 Critical
- Status
- Modified - vultures@jpcert.or.jp
- Published
- 2023-02-10
- Last modified
- 2025-03-24
- Weaknesses
- CWE-330
Affected products
- Kasago Ipv4 (Elwsc)
- Kasago Ipv4 Light (Elwsc)
- Kasago Ipv6/v4 Dual (Elwsc)
- Kasago Mobile Ipv6 (Elwsc)
- Kasago Ipv4 (Zuken Elmic)
- Kasago Ipv4 Light (Zuken Elmic)
- Kasago Ipv6v4 Dual (Zuken Elmic)
- Kasago Mobile Ipv6 (Zuken Elmic)
References
- https://jvn.jp/en/vu/JVNVU99551468/
- https://www.elwsc.co.jp/news/6352
