First published: Tue Jan 24 2017(Updated: )
WebExtensions could use the "mozAddonManager" API by modifying the CSP headers on sites with the appropriate permissions and then using host requests to redirect script loads to a malicious site. This allows a malicious extension to then install additional extensions without explicit user permission. This vulnerability affects Firefox < 51.
Credit: security@mozilla.org
Affected Software | Affected Version | How to fix |
---|---|---|
Mozilla Firefox | <51 | 51 |
<51 | 51 | |
Mozilla Firefox | <51.0 |
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(Found alongside the following vulnerabilities)
The severity of CVE-2017-5389 has been classified as critical due to its potential impact on user security.
To fix CVE-2017-5389, users should update their Mozilla Firefox browser to version 52 or later.
CVE-2017-5389 is caused by vulnerabilities in the "mozAddonManager" API that allow malicious extensions to install without user consent.
CVE-2017-5389 affects all Firefox versions prior to 52.
Yes, CVE-2017-5389 can allow for remote code execution if exploited by a malicious extension.