CVE-2021-29951
First published: Tue Mar 23 2021(Updated: )
The Maintenance Service granted SERVICE_START access to BUILTIN|Users which, in a domain network, grants normal remote users access to start or stop the service. This could be used to prevent the browser update service from operating (if an attacker spammed the 'Stop' command); but also exposed attack surface in the maintenance service.Note: This issue only affected Windows operating systems older than Win 10 build 1709. Other operating systems are unaffected.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Thunderbird | <78.10.1 | 78.10.1 |
| Mozilla Firefox | <87 | 87 |
| Mozilla Firefox ESR | <78.10.1 | 78.10.1 |
| Mozilla Firefox | <87.0 | |
| Mozilla Firefox ESR | <78.10.1 | |
| Mozilla Thunderbird | <78.10.1 | |
| Microsoft Windows |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1690062
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-19/
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-10/
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-18/
- https://www.mozilla.org/security/advisories/mfsa2021-10/
- https://www.mozilla.org/security/advisories/mfsa2021-18/
- https://www.mozilla.org/security/advisories/mfsa2021-19/
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- collector/mozilla-advisory
- agent/type
- agent/first-publish-date
- agent/last-modified-date
- source/Mozilla
- agent/software-canonical-lookup
- agent/references
- agent/weakness
- agent/author
- agent/severity
- agent/softwarecombine
- agent/event
- agent/software-canonical-lookup-request
- agent/tags
- agent/description
- collector/nvd-index
- collector/mitre-cve
- source/MITRE
- vendor/mozilla
- canonical/mozilla thunderbird
- canonical/mozilla firefox esr
- canonical/mozilla firefox
- vendor/microsoft
- canonical/microsoft windows