CVE-2020-7689 : Exploit Details and Defense Strategies

CVE-2020-7689, titled 'Insecure Encryption,' was made public on July 1, 2020. The vulnerability affects the 'bcrypt' product with versions less than 5.0.0. The issue arises from data being truncated incorrectly when its length exceeds 255 bytes.

Understanding CVE-2020-7689

This section provides insights into the nature and impact of the CVE-2020-7689 vulnerability.

What is CVE-2020-7689?

CVE-2020-7689 is an insecure encryption vulnerability in the 'bcrypt' product, leading to incorrect data truncation for lengths greater than 255 bytes.

The Impact of CVE-2020-7689

The vulnerability has a CVSS v3.1 base score of 5.9, categorizing it as a medium severity issue. It has a high integrity impact and a high attack complexity, with the attack vector being through the network.

Technical Details of CVE-2020-7689

Explore the technical aspects of CVE-2020-7689 to understand its implications and affected systems.

Vulnerability Description

The vulnerability in 'bcrypt' results in incorrect data truncation for lengths exceeding 255 bytes, posing a risk to data integrity.

Affected Systems and Versions

Product: bcrypt
Vendor: Not applicable
Versions Affected: Less than 5.0.0

Exploitation Mechanism

The vulnerability can be exploited remotely through a network connection, with no user interaction or special privileges required.

Mitigation and Prevention

Discover the steps to mitigate the CVE-2020-7689 vulnerability and prevent potential security risks.

Immediate Steps to Take

Update the 'bcrypt' version to 5.0.0 or higher to eliminate the vulnerability.
Monitor and restrict network access to vulnerable systems.

Long-Term Security Practices

Implement secure coding practices to avoid similar encryption vulnerabilities.
Regularly audit and review data handling processes to ensure data integrity.

Patching and Updates

Stay informed about security updates and patches for the 'bcrypt' product to address vulnerabilities promptly.