Mozilla Firefox up to 44.0.1 Service Worker access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.6$0-$5k0.00

A vulnerability, which was classified as critical, has been found in Mozilla Firefox up to 44.0.1 (Web Browser). This issue affects an unknown code block of the component Service Worker. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Mozilla Firefox before 44.0.2 does not properly restrict the interaction between Service Workers and plugins, which allows remote attackers to bypass the Same Origin Policy via a crafted web site that triggers spoofed responses to requests that use NPAPI, as demonstrated by a request for a crossdomain.xml file.

The weakness was shared 02/13/2016 as Bug 1245724 as not defined bug report (Bugzilla). It is possible to read the advisory at bugzilla.mozilla.org. The identification of this vulnerability is CVE-2016-1949 since 01/19/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/08/2022). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 88743 (FreeBSD : firefox -- Same-origin-policy violation using Service Workers with plugins (172b22cb-d3f6-11e5-ac9e-485d605f4717)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124696 (Mozilla Firefox Multiple Vulnerabilities (MFSA 2016-13 to MFSA 2016-14)).

Upgrading to version 44.0.2 eliminates this vulnerability. A possible mitigation has been published 2 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (88743), SecurityFocus (BID 83227†) and Vulnerability Center (SBV-56588†).

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 88743
Nessus Name: FreeBSD : firefox -- Same-origin-policy violation using Service Workers with plugins (172b22cb-d3f6-11e5-ac9e-485d605f4717)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802215
OpenVAS Name: Mozilla Firefox Security Bypass Vulnerability - Feb16 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Upgrade: Firefox 44.0.2

Timelineinfo

01/19/2016 🔍
02/10/2016 +22 days 🔍
02/10/2016 +0 days 🔍
02/11/2016 +1 days 🔍
02/12/2016 +0 days 🔍
02/13/2016 +1 days 🔍
02/13/2016 +0 days 🔍
02/14/2016 +1 days 🔍
02/15/2016 +1 days 🔍
07/08/2022 +2334 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: Bug 1245724
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-1949 (🔍)
SecurityFocus: 83227 - Mozilla Firefox CVE-2016-1949 Same Origin Policy Security Bypass Vulnerability
SecurityTracker: 1035007
Vulnerability Center: 56588 - Mozilla Firefox <44.0.2 Remote Restrictions Bypass Vulnerability due to Issue in Plugins Handling, Medium

Entryinfo

Created: 02/13/2016 11:01 AM
Updated: 07/08/2022 05:52 AM
Changes: 02/13/2016 11:01 AM (70), 08/22/2018 09:51 AM (17), 07/08/2022 05:52 AM (3)
Complete: 🔍
Cache ID: 18:740:40

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