CVE-2020-28503 : Security Advisory and Response

The package copy-props before version 2.0.5 is vulnerable to Prototype Pollution, allowing attackers to manipulate the prototype of objects.

Understanding CVE-2020-28503

This CVE involves a vulnerability in the copy-props package that can be exploited through Prototype Pollution.

What is CVE-2020-28503?

CVE-2020-28503 is a security vulnerability in the copy-props package that allows an attacker to modify the prototype of objects, potentially leading to code execution or data manipulation.

The Impact of CVE-2020-28503

The impact of this vulnerability is rated as HIGH, with a CVSS base score of 7.3. It can result in unauthorized access, data tampering, or denial of service.

Technical Details of CVE-2020-28503

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in copy-props before version 2.0.5 allows for Prototype Pollution through its main functionality, enabling attackers to modify the prototype of objects.

Affected Systems and Versions

Product: copy-props
Vendor: n/a
Versions Affected: < 2.0.5 (unspecified/custom)

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: None
Exploit Code Maturity: Proof of Concept
Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O

Mitigation and Prevention

Protecting systems from CVE-2020-28503 is crucial to maintaining security.

Immediate Steps to Take

Update the copy-props package to version 2.0.5 or higher.
Monitor for any suspicious activities or unauthorized access.

Long-Term Security Practices

Regularly review and update dependencies to ensure the latest security patches are applied.
Implement security best practices to prevent and detect potential vulnerabilities.

Patching and Updates

Apply official fixes and patches provided by the package maintainers.