Vulnerability Name:

CVE-2021-29951 (CCN-201172)

Assigned:2021-05-04
Published:2021-05-04
Updated:2022-07-12
Summary:The Mozilla 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. This vulnerability affects Thunderbird < 78.10.1, Firefox < 87, and Firefox ESR < 78.10.1.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
5.9 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
5.4 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L)
4.9 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:6.4 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
5.5 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-269
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2021-29951

Source: MISC
Type: Issue Tracking, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1690062

Source: XF
Type: UNKNOWN
mozilla-cve202129951-sec-bypass(201172)

Source: CCN
Type: Packet Storm Security [5-11-2021]
Mozilla Windows Maintenance Service Weak DACL

Source: CCN
Type: IBM Security Bulletin 6493377 (Application Performance Management)
Multiple vulnerabilities of Mozilla Firefox (less than Firefox 78.14.0 ESR +CVE-2021-29967) have affected Synthetic Playback Agent 8.1.4.0-8.1.4 IF14

Source: CCN
Type: Mozilla Foundation Security Advisory 2021-18
Security Vulnerabilities fixed in Firefox ESR 78.10.1

Source: CCN
Type: Mozilla Foundation Security Advisory 2021-19
Security Vulnerabilities fixed in Thunderbird 78.10.1

Source: MISC
Type: Release Notes, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-10/

Source: MISC
Type: Release Notes, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-18/

Source: MISC
Type: Release Notes, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-19/

Vulnerable Configuration:Configuration 1:
  • cpe:/a:mozilla:firefox:*:*:*:*:*:*:*:* (Version < 87.0)
  • OR cpe:/a:mozilla:thunderbird:*:*:*:*:*:*:*:* (Version < 78.10.1)
  • OR cpe:/a:mozilla:firefox_esr:*:*:*:*:*:*:*:* (Version < 78.10.1)
  • AND
  • cpe:/o:microsoft:windows:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:mozilla:thunderbird:78.10.0:*:*:*:*:*:*:*
  • AND
  • cpe:/a:ibm:application_performance_management:8.1.4:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:7868
    P
    		MozillaFirefox-102.11.0-150200.152.87.1 on GA media (Moderate)
    2023-06-12
    oval:org.opensuse.security:def:95284
    P
    		Security update for pcre2 (Important)
    2022-07-27
    oval:org.opensuse.security:def:3252
    P
    		libsmi-0.4.8-18.55 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:3546
    P
    		libICE6-1.0.8-12.1 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:95176
    P
    		MozillaThunderbird-91.8.0-150200.8.65.1 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:94777
    P
    		perl-File-Path-2.150000-1.22 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:94882
    P
    		MozillaFirefox-91.8.0-150200.152.26.1 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:6042
    P
    		Security update for ucode-intel (Moderate)
    2022-05-19
    oval:org.opensuse.security:def:6037
    P
    		Security update for webkit2gtk3 (Important)
    2022-05-16
    oval:org.opensuse.security:def:101997
    P
    		Security update for the Linux Kernel (Live Patch 3 for SLE 15 SP3) (Important)
    2022-02-02
    oval:org.opensuse.security:def:99475
    P
    		 (Moderate)
    2022-01-21
    oval:org.opensuse.security:def:97026
    P
    		nginx-1.14.0-4.24 on GA media (Moderate)
    2021-09-21
    oval:org.opensuse.security:def:97037
    P
    		sblim-sfcb-1.4.9-3.7 on GA media (Moderate)
    2021-09-21
    oval:org.opensuse.security:def:99674
    P
    		 (Important)
    2021-09-02
    oval:org.opensuse.security:def:101490
    P
    		Security update for systemd (Moderate)
    2021-08-23
    oval:org.opensuse.security:def:99982
    P
    		 (Important)
    2021-08-17
    oval:org.opensuse.security:def:111565
    P
    		Security update for MozillaThunderbird (Moderate)
    2021-07-10
    oval:org.opensuse.security:def:111570
    P
    		Security update for MozillaFirefox (Important)
    2021-07-09
    oval:org.opensuse.security:def:93076
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:108663
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:8974
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:98890
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:92525
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:10098
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:70238
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:93229
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:91940
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:9344
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:69484
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:99085
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:92724
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:10276
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:70416
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:8601
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:66825
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:92135
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:97052
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:9526
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:69666
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:99276
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:5736
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:92923
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:8779
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:75893
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:92326
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:111429
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:9725
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:69865
    P
    		Security update for MozillaFirefox (Important)
    2021-06-09
    oval:org.opensuse.security:def:32937
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:57015
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:83413
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:26067
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:44379
    P
    		Security update for MozillaFirefox (Moderate)
    2021-06-08
    oval:org.opensuse.security:def:67131
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:4132
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:59485
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:86096
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:31192
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:55199
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:125546
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:41158
    P
    		Security update for MozillaFirefox (Moderate)
    2021-06-08
    oval:org.opensuse.security:def:65283
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:88443
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:33662
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:57455
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:84153
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:29376
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:45588
    P
    		Security update for MozillaFirefox (Moderate)
    2021-06-08
    oval:org.opensuse.security:def:5054
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:74289
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:4194
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:59743
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:86575
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:31632
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:55909
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:82583
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:126716
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:23591
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:76199
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:89140
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:33920
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:57934
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:84611
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:30086
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:51579
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:117670
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:38659
    P
    		Security update for MozillaFirefox (Moderate)
    2021-06-08
    oval:org.opensuse.security:def:74351
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:101698
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:60277
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:87401
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:32111
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:56029
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:83293
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:127113
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:23913
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:43089
    P
    		Security update for MozillaFirefox (Moderate)
    2021-06-08
    oval:org.opensuse.security:def:108156
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:89398
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:34454
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:58760
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:85656
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:30206
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:51901
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:39949
    P
    		Security update for MozillaFirefox (Moderate)
    2021-06-08
    oval:org.opensuse.security:def:65221
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:88130
    P
    		Security update for MozillaFirefox (Important)
    2021-06-08
    oval:org.opensuse.security:def:10677
    P
    		Security update for MozillaThunderbird (Moderate)
    2021-06-04
    oval:org.opensuse.security:def:70817
    P
    		Security update for MozillaThunderbird (Moderate)
    2021-06-04
    oval:org.opensuse.security:def:96304
    P
    		Security update for MozillaThunderbird (Moderate)
    2021-06-04
    oval:org.opensuse.security:def:76194
    P
    		Security update for MozillaThunderbird (Moderate)
    2021-06-04
    oval:org.opensuse.security:def:109642
    P
    		Security update for MozillaThunderbird (Moderate)
    2021-06-04
    oval:org.opensuse.security:def:102976
    P
    		Security update for MozillaThunderbird (Moderate)
    2021-06-04
    oval:org.opensuse.security:def:10642
    P
    		Security update for MozillaThunderbird (Moderate)
    2021-06-04
    oval:org.opensuse.security:def:70782
    P
    		Security update for MozillaThunderbird (Moderate)
    2021-06-04
    oval:org.opensuse.security:def:67126
    P
    		Security update for MozillaThunderbird (Moderate)
    2021-06-04
    oval:org.opensuse.security:def:119782
    P
    		Security update for MozillaThunderbird (Moderate)
    2021-06-04
    oval:org.opensuse.security:def:102314
    P
    		Security update for MozillaThunderbird (Moderate)
    2021-06-04
    BACK
    mozilla firefox *
    mozilla thunderbird *
    mozilla firefox esr *
    microsoft windows -
    mozilla thunderbird 78.10.0
    ibm application performance management 8.1.4