CVE-2022-43501 Explained : Impact and Mitigation

A vulnerability has been identified in the KASAGO TCP/IP stack provided by Zuken Elmic, which may allow an attacker to hijack or spoof TCP connections due to insufficiently random source for Initial Sequence Numbers (ISNs).

Understanding CVE-2022-43501

This section provides an overview of the CVE-2022-43501 vulnerability.

What is CVE-2022-43501?

The vulnerability in the KASAGO TCP/IP stack allows attackers to determine ISNs for TCP connections, potentially leading to hijacking or spoofing of connections.

The Impact of CVE-2022-43501

The impact of this vulnerability is significant as it can compromise the integrity and security of TCP connections, enabling unauthorized access.

Technical Details of CVE-2022-43501

Explore the technical specifics of the CVE-2022-43501 vulnerability.

Vulnerability Description

The vulnerability arises from the generation of ISNs from an insufficiently random source in the KASAGO TCP/IP stack.

Affected Systems and Versions

Vendor: ZUKEN Elmic
Affected Products:
Kasago IPv6/v4 Dual
Kasago IPv4
Kasago IPv4 Light
Kasago mobile IPv6
Affected Versions: Prior to Ver6.0.1.34

Exploitation Mechanism

Attackers can exploit this vulnerability to determine ISNs and potentially hijack or spoof TCP connections.

Mitigation and Prevention

Learn how to address and prevent the CVE-2022-43501 vulnerability.

Immediate Steps to Take

It is recommended to apply security patches provided by ZUKEN Elmic to mitigate the risk of exploitation.

Long-Term Security Practices

Ensure that ISNs are generated from a cryptographically secure pseudo-random number generator to enhance security.

Patching and Updates

Regularly update the KASAGO TCP/IP stack to the latest version (Ver6.0.1.34) to eliminate this vulnerability.