CVE-2020-7707 : Vulnerability Insights and Analysis

CVE-2020-7707, also known as Prototype Pollution, affects the 'property-expr' package before version 2.0.3. This vulnerability allows attackers to manipulate the prototype of objects, leading to potential security risks.

Understanding CVE-2020-7707

This CVE entry highlights a critical vulnerability in the 'property-expr' package that can be exploited through Prototype Pollution.

What is CVE-2020-7707?

Prototype Pollution is a vulnerability that enables attackers to inject properties into existing JavaScript language construct prototypes.

The Impact of CVE-2020-7707

The vulnerability has a critical severity level with a CVSS base score of 9.8, indicating a high impact on confidentiality, integrity, and availability of affected systems.

Technical Details of CVE-2020-7707

This section provides detailed technical information about the CVE.

Vulnerability Description

The 'property-expr' package before version 2.0.3 is susceptible to Prototype Pollution through the setter function, allowing unauthorized manipulation of object prototypes.

Affected Systems and Versions

Product: property-expr
Vendor: n/a
Versions Affected: < 2.0.3

Exploitation Mechanism

The vulnerability can be exploited remotely with low attack complexity and no privileges required, making it a critical security concern.

Mitigation and Prevention

Protecting systems from CVE-2020-7707 requires immediate actions and long-term security measures.

Immediate Steps to Take

Update the 'property-expr' package to version 2.0.3 or higher to mitigate the vulnerability.
Monitor for any suspicious activities on the affected systems.

Long-Term Security Practices

Regularly audit and review third-party packages for known vulnerabilities.
Implement security best practices to prevent and detect potential security threats.

Patching and Updates

Stay informed about security updates and patches released by the package maintainers to address vulnerabilities like Prototype Pollution in 'property-expr'.