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.
References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1636654 Issue Tracking Permissions Required Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-45/ Release Notes Vendor Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: mozilla

Published: 2020-10-22T20:32:25

Updated: 2020-10-22T20:32:25

Reserved: 2020-07-10T00:00:00


Link: CVE-2020-15682

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2020-10-22T21:15:13.433

Modified: 2020-10-30T13:15:19.680


Link: CVE-2020-15682

JSON object: View

cve-icon Redhat Information

No data.

CWE