CVE-2020-26245 : What You Need to Know

Systeminformation npm package before version 4.30.5 is vulnerable to Prototype Pollution, potentially leading to Command Injection. The issue was addressed in version 4.30.5 by rewriting shell sanitations to prevent prototyper pollution problems.

Understanding CVE-2020-26245

What is CVE-2020-26245?

CVE-2020-26245 is a vulnerability in the systeminformation npm package that existed before version 4.30.5, allowing for Prototype Pollution that could lead to Command Injection.

The Impact of CVE-2020-26245

The vulnerability has a CVSS base score of 8.1 (High severity) with a HIGH attack complexity and NETWORK attack vector. It could result in HIGH confidentiality impact, LOW integrity impact, and LOW availability impact.

Technical Details of CVE-2020-26245

Vulnerability Description

The vulnerability in systeminformation npm package before version 4.30.5 allows for Prototype Pollution leading to Command Injection.

Affected Systems and Versions

Product: systeminformation
Vendor: sebhildebrandt
Versions Affected: < 4.30.5

Exploitation Mechanism

Attack Complexity: HIGH
Attack Vector: NETWORK
Privileges Required: NONE
Scope: CHANGED
User Interaction: NONE
Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:L

Mitigation and Prevention

Immediate Steps to Take

Upgrade to version 4.30.5 of the systeminformation npm package to mitigate the vulnerability.
Ensure to check or sanitize service parameter strings passed to si.inetChecksite() if an immediate upgrade is not possible.

Long-Term Security Practices

Regularly update npm packages to the latest versions to address known vulnerabilities.
Implement input validation and sanitization to prevent command injection attacks.

Patching and Updates

Apply patches and updates provided by the systeminformation package maintainers to stay protected against security vulnerabilities.