CVE-2017-5409 : Exploit Details and Defense Strategies
Learn about CVE-2017-5409, a Mozilla Firefox vulnerability allowing file deletion by non-privileged users. Find mitigation steps and affected versions here.
A security vulnerability in Mozilla Firefox and Firefox ESR versions prior to specific versions allows a non-privileged user to delete local files through the Mozilla Windows updater.
Understanding CVE-2017-5409
This CVE identifies a flaw in the Mozilla Windows updater that can be exploited to delete specific local files.
What is CVE-2017-5409?
The vulnerability enables a non-privileged user to manipulate the callback parameter through the Mozilla Maintenance Service, leading to the deletion of a specific local file.
The Impact of CVE-2017-5409
- Only affects Windows operating systems with local system access
- Versions prior to Firefox ESR 45.8 and Firefox 52 are vulnerable
Technical Details of CVE-2017-5409
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The flaw allows unauthorized users to delete local files by exploiting the Mozilla Windows updater.
Affected Systems and Versions
- Products: Firefox ESR, Firefox
- Vendor: Mozilla
- Versions: Firefox ESR < 45.8, Firefox < 52
Exploitation Mechanism
- Manipulating the callback parameter through the Mozilla Maintenance Service
Mitigation and Prevention
Protect your systems from CVE-2017-5409 with these steps:
Immediate Steps to Take
- Update Firefox to versions 45.8 (or newer) for ESR and 52 (or newer) for regular Firefox
- Monitor system for any suspicious activities
Long-Term Security Practices
- Limit user privileges to prevent unauthorized access
- Regularly update software and security patches
Patching and Updates
- Apply the latest updates and patches provided by Mozilla to address this vulnerability