Mozilla Firefox up to 53.x on Windows Updater/Maintenance Service File information disclosure

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.3 | $0-$5k | 0.00 |
Summary
A vulnerability classified as problematic has been found in Mozilla Firefox up to 53.x on Windows. This impacts an unknown function of the component Updater/Maintenance Service. Performing a manipulation results in information disclosure (File). This vulnerability is reported as CVE-2017-7768. The attack requires a local approach. No exploit exists. It is recommended to upgrade the affected component.
Details
A vulnerability was found in Mozilla Firefox up to 53.x on Windows (Web Browser). It has been classified as problematic. This affects some unknown processing of the component Updater/Maintenance Service. The manipulation with an unknown input leads to a information disclosure vulnerability (File). CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality.
The bug was discovered 06/13/2017. The weakness was disclosed 06/13/2017 by Holger Fuhrmannek (Nils) with Microsoft Vulnerability Research as MFSA 2017-15 as confirmed security advisory (Website). It is possible to read the advisory at mozilla.org. This vulnerability is uniquely identified as CVE-2017-7768 since 04/12/2017. Attacking locally is a requirement. Required for exploitation is a authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.
The vulnerability scanner Nessus provides a plugin with the ID 101055 (SUSE SLED12 / SLES12 Security Update : MozillaFirefox, MozillaFirefox-branding-SLE (SUSE-SU-2017:1669-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170109 (OpenSUSE Security Update for Mozilla (openSUSE-SU-2017:1620-1)).
Upgrading to version 54.0 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 Tenable (101055), SecurityFocus (BID 99057†) and SecurityTracker (ID 1038689†). The entries VDB-102487, VDB-102488, VDB-102489 and VDB-102490 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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: 4.4VulDB Meta Temp Score: 4.3
VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.5
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Name: FileClass: Information disclosure / File
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
Physical: Partially
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 101055
Nessus Name: SUSE SLED12 / SLES12 Security Update : MozillaFirefox, MozillaFirefox-branding-SLE (SUSE-SU-2017:1669-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 803347
OpenVAS Name: Mozilla Firefox ESR Security Updates(mfsa_2017-15_2017-16)-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 54.0
Timeline
04/12/2017 🔍06/13/2017 🔍
06/13/2017 🔍
06/13/2017 🔍
06/13/2017 🔍
06/14/2017 🔍
06/14/2017 🔍
06/27/2017 🔍
06/11/2018 🔍
11/26/2025 🔍
Sources
Vendor: mozilla.orgProduct: mozilla.org
Advisory: MFSA 2017-15
Researcher: Holger Fuhrmannek (Nils)
Organization: Microsoft Vulnerability Research
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2017-7768 (🔍)
GCVE (CVE): GCVE-0-2017-7768
GCVE (VulDB): GCVE-100-102507
SecurityFocus: 99057 - Mozilla Firefox Multiple Security Vulnerabilities
SecurityTracker: 1038689
See also: 🔍
Entry
Created: 06/14/2017 17:35Updated: 11/26/2025 05:14
Changes: 06/14/2017 17:35 (82), 10/17/2019 20:31 (8), 12/28/2020 15:54 (2), 11/26/2025 05:14 (16)
Complete: 🔍
Cache ID: 216::103
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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