CVE-2020-1890 : What You Need to Know

A URL validation issue in WhatsApp for Android and WhatsApp Business for Android could allow the loading of images from a sender-controlled URL without user interaction.

Understanding CVE-2020-1890

An analysis of the vulnerability, its impacts, technical details, and mitigation strategies.

What is CVE-2020-1890?

This CVE describes a URL validation flaw in WhatsApp for Android and WhatsApp Business for Android that could lead to loading images from sender-controlled URLs unintentionally.

The Impact of CVE-2020-1890

The vulnerability could enable attackers to exploit the improper input validation and potentially deliver malicious content through specially crafted sticker messages.

Technical Details of CVE-2020-1890

Insights into the vulnerability's specifics and affected systems.

Vulnerability Description

The issue exists in versions of WhatsApp for Android prior to v2.20.11 and WhatsApp Business for Android prior to v2.20.2, allowing the loading of images from malicious URLs.

Affected Systems and Versions

WhatsApp for Android versions less than 2.20.11
WhatsApp Business for Android versions less than 2.20.2

Exploitation Mechanism

Attackers could abuse this vulnerability by sending sticker messages containing manipulated data that forces the loading of images from URLs controlled by the attacker.

Mitigation and Prevention

Steps to address and prevent exploitation of the CVE.

Immediate Steps to Take

Update WhatsApp for Android to at least version 2.20.11 and WhatsApp Business for Android to at least version 2.20.2.
Be cautious of sticker messages from unknown or untrusted sources.

Long-Term Security Practices

Regularly update messaging apps to the latest versions.
Educate users about potential risks associated with opening content from unknown sources.

Patching and Updates

Stay informed about security advisories and apply patches promptly to mitigate vulnerabilities.