First published: Tue Jun 13 2017(Updated: )
The Mozilla Maintenance Service can be invoked by an unprivileged user to read 32 bytes of any arbitrary file on the local system by convincing the service that it is reading a status file provided by the Mozilla Windows Updater. The Mozilla Maintenance Service executes with privileged access, bypassing system protections against unprivileged users. Note: This attack requires local system access and only affects Windows. Other operating systems are not affected.
Credit: security@mozilla.org
Affected Software | Affected Version | How to fix |
---|---|---|
Mozilla Firefox ESR | <52.2 | 52.2 |
<54 | 54 | |
<52.2 | 52.2 | |
Mozilla Firefox | <54.0 | |
Mozilla Firefox ESR | <52.2.0 | |
Microsoft Windows |
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(Found alongside the following vulnerabilities)