CVE-2023-29532: 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...
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.
Classification
CVE ID: CVE-2023-29532
CVSS Base Severity: LOW
CVSS Base Score: 0.0
Affected Products
Vendor: Mozilla
Product: Firefox
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.04% (probability of being exploited)
EPSS Percentile: 5.08% (scored less or equal to compared to others)
EPSS Date: 2025-02-04 (when was this score calculated)
References
https://bugzilla.mozilla.org/show_bug.cgi?id=1806394https://www.mozilla.org/security/advisories/mfsa2023-13/
https://www.mozilla.org/security/advisories/mfsa2023-14/
https://www.mozilla.org/security/advisories/mfsa2023-15/