First published: Tue Jun 13 2017(Updated: )
A mechanism where when a new tab is loaded through JavaScript events, if fullscreen mode is then entered, the addressbar will not be rendered. This would allow a malicious site to displayed a spoofed addressbar, showing the location of an arbitrary website instead of the one loaded. Note: this issue only affects Firefox for Android. Desktop Firefox is unaffected.
Credit: security@mozilla.org
Affected Software | Affected Version | How to fix |
---|---|---|
Firefox | <54 | 54 |
Firefox | <54.0 | |
Android |
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(Found alongside the following vulnerabilities)
CVE-2017-7770 has a high severity rating as it allows for potential phishing attacks by spoofing the address bar.
To mitigate CVE-2017-7770, users should upgrade to a version of Firefox above 54.
CVE-2017-7770 affects all versions of Firefox up to and including version 54.
CVE-2017-7770 can be exploited to perform phishing attacks by displaying a spoofed address bar.
There are no known workarounds for CVE-2017-7770 other than upgrading Firefox to a secure version.