Mozilla Firefox up to 62.x WebExtension privileges management

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox up to 62.x. It has been declared as critical. This vulnerability affects unknown code of the component WebExtension. The manipulation results in privileges management. This vulnerability is cataloged as CVE-2018-12395. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Mozilla Firefox up to 62.x (Web Browser). Affected is some unknown processing of the component WebExtension. 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.

The bug was discovered 10/23/2018. The weakness was shared 10/23/2018 as MFSA 2018-26 as confirmed security advisory (Website). The advisory is shared for download at mozilla.org. This vulnerability is traded as CVE-2018-12395 since 06/14/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability scanner Nessus provides a plugin with the ID 118406 (CentOS 6 : firefox (CESA-2018:3006)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197286 (Ubuntu Security Notification for Firefox Vulnerabilities (USN-3801-1)).

Upgrading to version 63.0 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 (118406), SecurityFocus (BID 105723†) and SecurityTracker (ID 1041944†). The entries VDB-125961, VDB-125962, VDB-125963 and VDB-125965 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.7

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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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: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 118406
Nessus Name: CentOS 6 : firefox (CESA-2018:3006)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Firefox 63.0

Timelineinfo

06/14/2018 🔍
10/23/2018 +130 days 🔍
10/23/2018 +0 days 🔍
10/23/2018 +0 days 🔍
10/23/2018 +0 days 🔍
10/24/2018 +0 days 🔍
10/26/2018 +2 days 🔍
10/26/2018 +0 days 🔍
06/03/2023 +1681 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2018-26
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-12395 (🔍)
GCVE (CVE): GCVE-0-2018-12395
GCVE (VulDB): GCVE-100-125964

OVAL: 🔍

SecurityFocus: 105723 - Mozilla Firefox ESR CVE-2018-12389 Multiple Memory Corruption Vulnerabilities
SecurityTracker: 1041944

See also: 🔍

Entryinfo

Created: 10/26/2018 07:13
Updated: 06/03/2023 08:01
Changes: 10/26/2018 07:13 (71), 04/06/2020 17:29 (13), 06/03/2023 08:01 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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