Mozilla Firefox up to 50 Proxy Auto-Config information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox up to 50. It has been classified as problematic. This impacts an unknown function of the component Proxy Auto-Config. The manipulation leads to information disclosure. This vulnerability is uniquely identified as CVE-2017-5384. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 50 (Web Browser) and classified as problematic. This issue affects an unknown code block of the component Proxy Auto-Config. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality.

The bug was discovered 01/24/2017. The weakness was disclosed 01/24/2017 by Muneaki Nishimura (Alex) as MFSA 2017-01 as confirmed security advisory (Website). The advisory is shared at mozilla.org. The identification of this vulnerability is CVE-2017-5384 since 01/13/2017. 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. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 97047 (Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS / 16.10 : firefox regression (USN-3175-2)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196675 (Ubuntu Security Notification for Firefox Vulnerabilities (USN-3175-1)).

Upgrading to version 51 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 (97047), SecurityFocus (BID 95763†) and SecurityTracker (ID 1037693†). The entries VDB-96001, VDB-96002, VDB-96003 and VDB-96004 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.0

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

NVD Base Score: 5.9
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: 97047
Nessus Name: Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS / 16.10 : firefox regression (USN-3175-2)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802170
OpenVAS Name: Mozilla Firefox Security Updates(mfsa_2017-01_2017-02)-Windows
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 51

Timelineinfo

01/13/2017 🔍
01/24/2017 +11 days 🔍
01/24/2017 +0 days 🔍
01/24/2017 +0 days 🔍
01/24/2017 +0 days 🔍
01/25/2017 +1 days 🔍
01/26/2017 +1 days 🔍
02/07/2017 +12 days 🔍
06/11/2018 +488 days 🔍
11/04/2022 +1607 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2017-01
Researcher: Muneaki Nishimura (Alex)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-5384 (🔍)
GCVE (CVE): GCVE-0-2017-5384
GCVE (VulDB): GCVE-100-96017

OVAL: 🔍

SecurityFocus: 95763 - Mozilla Firefox Multiple Security Vulnerabilities
OSVDB: - CVE-2017-5384 - Mozilla - Firefox - URL Disclosure Issue
SecurityTracker: 1037693

See also: 🔍

Entryinfo

Created: 01/26/2017 15:17
Updated: 11/04/2022 09:13
Changes: 01/26/2017 15:17 (81), 08/02/2020 18:06 (8), 11/04/2022 09:13 (3)
Complete: 🔍
Cache ID: 216:5B2:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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