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.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade firefox-esr | Aug 22, 2024 | Jun 19, 2023 |
| Mfsa2023 13 | — | Upgrade to Mozilla Firefox version 112.0 | Apr 12, 2023 | Apr 11, 2023 |
| Mfsa2023 14 | — | Upgrade to Mozilla Firefox ESR version 102.10 | Apr 12, 2023 | Apr 11, 2023 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 102.10 | Apr 12, 2023 | Apr 11, 2023 |
| Suse | — | Upgrade MozillaThunderbirdUpgrade MozillaThunderbird-translations-commonUpgrade mozillafirefox-branding-upstreamUpgrade MozillaFirefox-translations-commonUpgrade MozillaFirefox-develUpgrade MozillaThunderbird-translations-otherUpgrade MozillaFirefox-translations-otherUpgrade MozillaFirefox | Apr 12, 2023 | Apr 11, 2023 |
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