CVE-2020-20093 : Security Advisory and Response
Learn about CVE-2020-20093, a vulnerability in Facebook Messenger app for iOS and Android allowing URI spoofing attacks. Find mitigation steps and prevention measures here.
The Facebook Messenger app for iOS 227.0 and prior and Android 228.1.0.10.116 and prior user interface does not properly represent URI messages to the user, resulting in URI spoofing via specially crafted messages.
Understanding CVE-2020-20093
This CVE entry highlights a vulnerability in the Facebook Messenger app that could lead to URI spoofing attacks.
What is CVE-2020-20093?
CVE-2020-20093 is a vulnerability in the Facebook Messenger app for iOS and Android that allows attackers to spoof URIs through specially crafted messages.
The Impact of CVE-2020-20093
The vulnerability could be exploited by malicious actors to deceive users into clicking on seemingly legitimate links that redirect them to malicious websites, leading to potential phishing attacks or the download of malware.
Technical Details of CVE-2020-20093
This section provides more in-depth technical information about the vulnerability.
Vulnerability Description
The issue lies in the user interface of the Facebook Messenger app, where URI messages are not accurately represented to users, enabling attackers to spoof URIs.
Affected Systems and Versions
- Facebook Messenger app for iOS versions 227.0 and prior
- Facebook Messenger app for Android versions 228.1.0.10.116 and prior
Exploitation Mechanism
Attackers can exploit this vulnerability by sending specially crafted messages containing deceptive URIs to users, tricking them into interacting with malicious links.
Mitigation and Prevention
Protecting against CVE-2020-20093 involves taking immediate steps and implementing long-term security practices.
Immediate Steps to Take
- Update the Facebook Messenger app to the latest version to patch the vulnerability.
- Avoid clicking on suspicious links or messages from unknown senders.
Long-Term Security Practices
- Educate users about the risks of interacting with unknown links and messages.
- Regularly update apps and devices to ensure protection against known vulnerabilities.
Patching and Updates
Ensure that all software, including the Facebook Messenger app, is regularly updated to the latest versions to mitigate the risk of URI spoofing attacks.