Mozilla Firefox/Firefox ESR/Thunderbird on Windows Updater Service privileges management

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox, Firefox ESR and Thunderbird on Windows. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component Updater Service. The manipulation results in privileges management. This vulnerability is cataloged as CVE-2019-17009. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Firefox, Firefox ESR and Thunderbird on Windows (Web Browser) (version now known). It has been classified as critical. Affected is some unknown processing of the component Updater Service. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

When running, the updater service wrote status and log files to an unrestricted location; potentially allowing an unprivileged process to locate and exploit a vulnerability in file handling in the updater service. *Note: This attack requires local system access and only affects Windows. Other operating systems are not affected.*. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.

The weakness was shared 01/08/2020 as MFSA 2019-36 as confirmed security advisory (Website). The advisory is available at mozilla.org. This vulnerability is traded as CVE-2019-17009 since 09/30/2019. It is possible to launch the attack remotely. Required for exploitation is a authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 249945 (Linux Distros Unpatched Vulnerability : CVE-2019-17009), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (249945). The entries VDB-148432, VDB-148433, VDB-148435 and VDB-148436 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 249945
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2019-17009

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

09/30/2019 🔍
01/08/2020 +100 days 🔍
01/08/2020 +0 days 🔍
01/09/2020 +1 days 🔍
08/18/2025 +2047 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2019-36
Status: Confirmed

CVE: CVE-2019-17009 (🔍)
GCVE (CVE): GCVE-0-2019-17009
GCVE (VulDB): GCVE-100-148434
See also: 🔍

Entryinfo

Created: 01/09/2020 09:57
Updated: 08/18/2025 01:08
Changes: 01/09/2020 09:57 (43), 01/09/2020 10:02 (18), 08/18/2025 01:08 (18)
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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