CVE-2019-13075 : What You Need to Know

An information disclosure vulnerability has been identified in Tor Browser versions up to 8.5.3, allowing remote hackers to determine the language of the browser.

Understanding CVE-2019-13075

This CVE involves an information exposure vulnerability in Tor Browser versions up to 8.5.3, enabling remote attackers to detect the browser's language.

What is CVE-2019-13075?

The vulnerability allows remote hackers to exploit an IFRAME element to determine the language of the browser.
It is related to the inclusion of text in the language in the title attribute of a LINK element for a non-HTML page.
The issue is connected to a behavior present in Firefox versions prior to 68.

The Impact of CVE-2019-13075

Remote attackers can identify the language of the Tor Browser, potentially leading to further targeted attacks.

Technical Details of CVE-2019-13075

This section provides technical details about the vulnerability.

Vulnerability Description

An information disclosure vulnerability in Tor Browser versions up to 8.5.3.
Remote hackers can determine the browser's language by exploiting an IFRAME element.

Affected Systems and Versions

Tor Browser versions up to 8.5.3 are affected by this vulnerability.

Exploitation Mechanism

Remote attackers exploit the IFRAME element to detect the language of the browser.
Text in the language is included in the title attribute of a LINK element for a non-HTML page.

Mitigation and Prevention

Protecting systems from CVE-2019-13075 is crucial for maintaining security.

Immediate Steps to Take

Update Tor Browser to the latest version to mitigate the vulnerability.
Avoid visiting untrusted websites to minimize the risk of exploitation.

Long-Term Security Practices

Regularly update browsers and software to patch known vulnerabilities.
Implement security measures to prevent information disclosure attacks.

Patching and Updates

Stay informed about security updates for Tor Browser and apply patches promptly to address vulnerabilities.