Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 112.0 |
| Mozilla | Firefox Esr | < 102.10 |
| Mozilla | Thunderbird | < 102.10 |
| Microsoft | Windows | - |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1806394Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2023-13/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-14/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-15/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1806394Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2023-13/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-14/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-15/Vendor Advisory
FAQ
What is CVE-2023-29532?
CVE-2023-29532 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 af...
How severe is CVE-2023-29532?
CVE-2023-29532 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-29532?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird, Microsoft Windows.