Mozilla Firefox up to 47 Resource Timing API information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox up to 47. It has been rated as problematic. Impacted is an unknown function of the component Resource Timing API. Performing a manipulation results in information disclosure. This vulnerability is reported as CVE-2016-5250. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 47 (Web Browser). It has been classified as problematic. This affects an unknown function of the component Resource Timing API. The manipulation with an unknown input leads to a information disclosure vulnerability. 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 summary by CVE is:

Mozilla Firefox before 48.0 allows remote attackers to obtain sensitive information about the previously retrieved page via Resource Timing API calls.

The weakness was disclosed 08/02/2016 by Catalin Dumitru (musicDespiteEverything) with Amazon as MFSA 2016-84 as confirmed security advisory (Website). It is possible to read the advisory at mozilla.org. This vulnerability is uniquely identified as CVE-2016-5250 since 06/03/2016. It is possible to initiate the attack remotely. No form of authentication is needed for 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 attack technique deployed by this issue is T1592 according to MITRE ATT&CK. The advisory points out:

Amazon software engineer Catalin Dumitru reported that the URLs of resources loaded after a navigation started (such as in an unload event handler) were leaked to the following page through the Resource Timing API. This leads to potential information disclosure.

The vulnerability scanner Nessus provides a plugin with the ID 94043 (SUSE SLES11 Security Update : MozillaFirefox (SUSE-SU-2016:2513-1)), 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 196543 (Ubuntu Security Notification for Firefox Vulnerabilities (USN-3044-1)).

Upgrading to version 48 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 (94043), SecurityFocus (BID 92260†) and SecurityTracker (ID 1036508†). The entries VDB-90424, VDB-90425, VDB-90426 and VDB-90427 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
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: Information disclosure
CWE: CWE-200 / CWE-284 / 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: 94043
Nessus Name: SUSE SLES11 Security Update : MozillaFirefox (SUSE-SU-2016:2513-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 60587
OpenVAS Name: CentOS Update for firefox CESA-2016:1912 centos6
OpenVAS File: 🔍
OpenVAS Family: 🔍

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 48

Timelineinfo

06/03/2016 🔍
08/02/2016 +60 days 🔍
08/02/2016 +0 days 🔍
08/02/2016 +0 days 🔍
08/03/2016 +1 days 🔍
08/04/2016 +1 days 🔍
08/04/2016 +0 days 🔍
10/13/2016 +70 days 🔍
03/16/2019 +884 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2016-84
Researcher: Catalin Dumitru (musicDespiteEverything)
Organization: Amazon
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-5250 (🔍)
GCVE (CVE): GCVE-0-2016-5250
GCVE (VulDB): GCVE-100-90447

OVAL: 🔍

SecurityFocus: 92260 - Mozilla Firefox Multiple Security Vulnerabilities
SecurityTracker: 1036508

See also: 🔍

Entryinfo

Created: 08/04/2016 09:21
Updated: 03/16/2019 22:54
Changes: 08/04/2016 09:21 (77), 03/16/2019 22:54 (13)
Complete: 🔍
Cache ID: 216:561:103

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