Vulnerability Description
The "browser.identity.launchWebAuthFlow" function of WebExtensions is only allowed to load content over "https:" but this requirement was not properly enforced. This can potentially allow privileged pages to be loaded by the extension. This vulnerability affects Firefox < 58.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | <= 57.0.4 |
| Canonical | Ubuntu Linux | 14.04 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/102786Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040270Third Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1425267Issue TrackingPermissions Required
- https://usn.ubuntu.com/3544-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-02/Vendor Advisory
- http://www.securityfocus.com/bid/102786Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040270Third Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1425267Issue TrackingPermissions Required
- https://usn.ubuntu.com/3544-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-02/Vendor Advisory
FAQ
What is CVE-2018-5113?
CVE-2018-5113 is a vulnerability with a CVSS score of 7.5 (HIGH). The "browser.identity.launchWebAuthFlow" function of WebExtensions is only allowed to load content over "https:" but this requirement was not properly enforced. This can potentially allow privileged p...
How severe is CVE-2018-5113?
CVE-2018-5113 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-5113?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Canonical Ubuntu Linux.