CVE-2020-1902 : Vulnerability Insights and Analysis

A user running a quick search on a highly forwarded message on WhatsApp for Android from v2.20.108 to v2.20.140 or WhatsApp Business for Android from v2.20.35 to v2.20.49 could have been sent to the Google service over plain HTTP.

Understanding CVE-2020-1902

This CVE impacts WhatsApp for Android and WhatsApp Business for Android, potentially exposing sensitive information.

What is CVE-2020-1902?

CVE-2020-1902 involves the exposure of sensitive information to an unauthorized actor, specifically occurring during searches on highly forwarded messages on WhatsApp for Android and WhatsApp Business.

The Impact of CVE-2020-1902

Sensitive user data could have been transmitted over plain HTTP, potentially accessible to unauthorized parties.

Technical Details of CVE-2020-1902

This section provides detailed technical insights into the vulnerability.

Vulnerability Description

The vulnerability allows users running specific versions of WhatsApp for Android and WhatsApp Business for Android to unintentionally share information with unauthorized parties while conducting message searches.

Affected Systems and Versions

WhatsApp for Android: Version 2.20.108 to 2.20.140 (affected)
WhatsApp Business for Android: Version 2.20.35 to 2.20.49 (affected)

Exploitation Mechanism

Users conducting searches on highly forwarded messages between the specified versions could unknowingly transmit data to the Google service over plain HTTP.

Mitigation and Prevention

Protective measures and best practices to mitigate the impact of CVE-2020-1902.

Immediate Steps to Take

Upgrade: Ensure WhatsApp for Android and WhatsApp Business for Android are updated to the latest versions.
Avoid Searching: Refrain from conducting searches on highly forwarded messages within the specified vulnerable versions.

Long-Term Security Practices

Use Encryption: Employ end-to-end encryption for all communications.
Data Privacy: Be cautious about the information shared on messaging platforms.
Regular Updates: Stay informed about security updates for applications and devices.

Patching and Updates

Follow updates and advisories from WhatsApp to address the vulnerability promptly.