If Firefox is installed to a user-writable directory, the Mozilla Maintenance Service would execute updater.exe from the install location with system privileges. Although the Mozilla Maintenance Service does ensure that updater.exe is signed by Mozilla, the version could have been rolled back to a previous version which would have allowed exploitation of an older bug and arbitrary code execution with System Privileges. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Firefox < 80, Thunderbird < 78.2, Thunderbird < 68.12, Firefox ESR < 68.12, and Firefox ESR < 78.2.
References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1643199 Issue Tracking Permissions Required Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-36/ Release Notes Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-37/ Release Notes Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-38/ Release Notes Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-40/ Release Notes Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-41/ Release Notes Vendor Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: mozilla

Published: 2020-10-01T18:43:38

Updated: 2020-10-01T18:43:38

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


Link: CVE-2020-15663

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2020-10-01T19:15:12.970

Modified: 2022-07-12T17:42:04.277


Link: CVE-2020-15663

JSON object: View

cve-icon Redhat Information

No data.

CWE