CVE-2023-29532 Information

Description

A local attacker can trick the Mozilla Maintenance Service into applying an unsigned update file by pointing the service at an update file on a malicious SMB server. The update file can be replaced after the signature check before the use because the write-lock requested by the service does not work on a SMB server.

Note: This attack requires local system access and only affects Windows. Other operating systems are not affected. This vulnerability affects Firefox < 112 Firefox ESR < 102.10 and Thunderbird < 102.10.

Reference

https://www.mozilla.org/security/advisories/mfsa2023-14/ https://www.mozilla.org/security/advisories/mfsa2023-13/ https://bugzilla.mozilla.org/show_bug.cgi?id=1806394 https://www.mozilla.org/security/advisories/mfsa2023-15/