CVE-2017-5407 : Vulnerability Insights and Analysis
Learn about CVE-2017-5407, a Mozilla vulnerability allowing malicious webpages to extract sensitive data. Find out affected systems, exploitation details, and mitigation steps.
A vulnerability in Mozilla products allows malicious webpages to extract sensitive information from users by exploiting SVG filters. This CVE affects Firefox, Firefox ESR, and Thunderbird versions prior to specific versions.
Understanding CVE-2017-5407
This CVE, published on March 7, 2017, highlights a security issue in Mozilla products that could lead to the disclosure of sensitive data.
What is CVE-2017-5407?
By using SVG filters without fixed point math implementation, a malicious webpage can extract pixel data from a targeted user, potentially accessing browsing history and text values from various domains.
The Impact of CVE-2017-5407
This vulnerability violates the same-origin policy, risking the exposure of sensitive information to unauthorized parties.
Technical Details of CVE-2017-5407
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability allows for pixel and history stealing via a floating-point timing side channel with SVG filters.
Affected Systems and Versions
- Firefox versions earlier than 52
- Firefox ESR versions earlier than 45.8
- Thunderbird versions earlier than 52
- Thunderbird versions earlier than 45.8
Exploitation Mechanism
Malicious webpages exploit SVG filters to extract pixel data from targeted users, breaching the same-origin policy.
Mitigation and Prevention
Protecting systems from CVE-2017-5407 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update affected Mozilla products to versions 52 (or later) for Firefox and 45.8 (or later) for Firefox ESR and Thunderbird.
- Avoid visiting untrusted websites or clicking on suspicious links.
Long-Term Security Practices
- Regularly update browsers and email clients to the latest versions.
- Educate users on safe browsing habits and the importance of software updates.
Patching and Updates
Apply security patches provided by Mozilla to address the vulnerability and enhance system security.