Mozilla Firefox up to 28.0.1 on Windows Maintenance Service Installer maintenservice_installer.exe access control

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.2 | $0-$5k | 0.00 |
Summary
A vulnerability classified as problematic was found in Mozilla Firefox up to 28.0.1 on Windows. Affected by this vulnerability is an unknown functionality of the file maintenservice_installer.exe of the component Maintenance Service Installer. Executing a manipulation can lead to access control. This vulnerability is registered as CVE-2014-1520. The attack needs to be launched locally. No exploit is available. Upgrading the affected component is advised.
Details
A vulnerability has been found in Mozilla Firefox up to 28.0.1 on Windows (Web Browser) and classified as problematic. This vulnerability affects an unknown function of the file maintenservice_installer.exe of the component Maintenance Service Installer. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
maintenservice_installer.exe in the Maintenance Service Installer in Mozilla Firefox before 29.0 and Firefox ESR 24.x before 24.5 on Windows allows local users to gain privileges by placing a Trojan horse DLL file into a temporary directory at an unspecified point in the update process.
The weakness was published 04/29/2014 by Ash as MFSA2014-35 as confirmed advisory (Website). The advisory is available at mozilla.org. This vulnerability was named CVE-2014-1520 since 01/16/2014. Local access is required to approach this attack. The successful exploitation requires a single authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.
The vulnerability scanner Nessus provides a plugin with the ID 73848 (Fedora 19 : firefox-29.0-5.fc19 / thunderbird-24.5.0-1.fc19 / xulrunner-29.0-1.fc19 (2014-5829)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166911 (SUSE Enterprise Linux Security Update for Mozilla Firefox (SUSE-SU-2014:0638-2)).
Upgrading to version 29.0 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at X-Force (92849), Tenable (73848), SecurityFocus (BID 67126†), Secunia (SA58344†) and SecurityTracker (ID 1030165†). Additional details are provided at bugzilla.mozilla.org. Similar entries are available at VDB-13101, VDB-13100, VDB-13099 and VDB-13098. If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.mozilla.org/
- Product: https://www.mozilla.org/en-US/firefox/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.8VulDB Meta Temp Score: 4.2
VulDB Base Score: 4.8
VulDB Temp Score: 4.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
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VulDB Base Score: 🔍
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VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Access controlCWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍
Physical: Partially
Local: Yes
Remote: Partially
Availability: 🔍
Status: Unproven
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
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Nessus ID: 73848
Nessus Name: Fedora 19 : firefox-29.0-5.fc19 / thunderbird-24.5.0-1.fc19 / xulrunner-29.0-1.fc19 (2014-5829)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
OpenVAS ID: 803607
OpenVAS Name: Mozilla Firefox ESR Multiple Vulnerabilities-01 May14 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: Firefox 29.0
Timeline
01/16/2014 🔍04/29/2014 🔍
04/29/2014 🔍
04/29/2014 🔍
04/30/2014 🔍
04/30/2014 🔍
04/30/2014 🔍
04/30/2014 🔍
04/30/2014 🔍
05/01/2014 🔍
11/25/2025 🔍
Sources
Vendor: mozilla.orgProduct: mozilla.org
Advisory: MFSA2014-35
Researcher: Ash
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2014-1520 (🔍)
GCVE (CVE): GCVE-0-2014-1520
GCVE (VulDB): GCVE-100-13090
OVAL: 🔍
IAVM: 🔍
X-Force: 92849 - Mozilla Firefox Mozilla Maintenance Service installer privilege escalation, High Risk
SecurityFocus: 67126 - Mozilla Firefox CVE-2014-1520 Local Privilege Escalation Vulnerability
Secunia: 58344 - Mozilla Firefox / Thunderbird / SeaMonkey Multiple Vulnerabilities, Highly Critical
SecurityTracker: 1030165 - Mozilla Thunderbird Multiple Flaws Let Remote Users Execute Arbitrary Code, Deny Service, and Conduct Cross-Site Scripting Attacks and Local Users Gain Elevated Privileges
Vulnerability Center: 44351 - Mozilla Firefox Local Privilege Escalation Vulnerability via a Trojan Horse DLL File - CVE-2014-1520, Medium
Misc.: 🔍
See also: 🔍
Entry
Created: 04/30/2014 21:26Updated: 11/25/2025 21:04
Changes: 04/30/2014 21:26 (89), 01/31/2018 09:52 (6), 06/19/2021 07:34 (2), 11/25/2025 21:04 (15)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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