Vulnerability Description
When a link to an external protocol was clicked, a prompt was presented that allowed the user to choose what application to open it in. An attacker could induce that prompt to be associated with an origin they didn't control, resulting in a spoofing attack. This was fixed by changing external protocol prompts to be tab-modal while also ensuring they could not be incorrectly associated with a different origin. This vulnerability affects Firefox < 82.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 82.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1636654Issue TrackingPermissions RequiredVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-45/Release NotesVendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1636654Issue TrackingPermissions RequiredVendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-45/Release NotesVendor Advisory
FAQ
What is CVE-2020-15682?
CVE-2020-15682 is a vulnerability with a CVSS score of 6.5 (MEDIUM). When a link to an external protocol was clicked, a prompt was presented that allowed the user to choose what application to open it in. An attacker could induce that prompt to be associated with an or...
How severe is CVE-2020-15682?
CVE-2020-15682 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-15682?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox.