CVE-2020-27630 : What You Need to Know

This CVE record pertains to a vulnerability in Silicon Labs uC/TCP-IP 3.6.0 where TCP Initial Sequence Numbers (ISNs) are not properly randomized.

Understanding CVE-2020-27630

This section provides insights into the nature and impact of CVE-2020-27630.

What is CVE-2020-27630?

The vulnerability in Silicon Labs uC/TCP-IP 3.6.0 allows for improper randomization of TCP ISNs, potentially leading to security risks.

The Impact of CVE-2020-27630

The vulnerability could be exploited by malicious actors to launch attacks that rely on predictable TCP ISNs, compromising the confidentiality and integrity of network communications.

Technical Details of CVE-2020-27630

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Vulnerability Description

The issue lies in the inadequate randomization of TCP ISNs within Silicon Labs uC/TCP-IP 3.6.0, exposing systems to potential attacks.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Versions Affected: All versions are impacted.

Exploitation Mechanism

Attackers can exploit the predictable TCP ISNs to launch various network-based attacks, potentially leading to unauthorized access or data manipulation.

Mitigation and Prevention

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Immediate Steps to Take

Implement network segmentation to limit the impact of potential attacks.
Monitor network traffic for any suspicious activity related to TCP ISNs.
Consider deploying intrusion detection systems to detect and respond to exploitation attempts.

Long-Term Security Practices

Regularly update and patch the affected systems to address the vulnerability.
Conduct security assessments and penetration testing to identify and remediate any weaknesses in network security.

Patching and Updates

Ensure timely installation of patches and updates provided by Silicon Labs to address the improper randomization of TCP ISNs in uC/TCP-IP 3.6.0.