Mozilla Firefox 39 JSON Parser information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.6$0-$5k0.00

A vulnerability, which was classified as critical, was found in Mozilla Firefox 39 (Web Browser). This affects some unknown processing of the component JSON Parser. 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 integrity.

The weakness was disclosed 08/11/2015 as MFSA 2015-82 as confirmed security advisory (Website). The advisory is shared at mozilla.org. This vulnerability is uniquely identified as CVE-2015-4478 since 06/10/2015. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. 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 85336 (CentOS 5 / 6 / 7 : firefox (CESA-2015:1586)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 123849 (CentOS Security Update for firefox Security Update (CESA-2015:1586)).

Upgrading to version 40 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 X-Force (105576) and Tenable (85336).

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 85336
Nessus Name: CentOS 5 / 6 / 7 : firefox (CESA-2015:1586)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 703333
OpenVAS Name: Debian Security Advisory DSA 3333-1 (iceweasel - security update)
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 40

Timelineinfo

06/10/2015 🔍
08/11/2015 +62 days 🔍
08/11/2015 +0 days 🔍
08/14/2015 +3 days 🔍
08/15/2015 +1 days 🔍
06/09/2022 +2490 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2015-82
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-4478 (🔍)
OVAL: 🔍

X-Force: 105576 - Mozilla Firefox JSON security bypass
SecurityTracker: 1033247

Entryinfo

Created: 08/14/2015 10:57 AM
Updated: 06/09/2022 03:06 PM
Changes: 08/14/2015 10:57 AM (59), 10/08/2017 09:56 AM (8), 06/09/2022 03:04 PM (4), 06/09/2022 03:06 PM (1)
Complete: 🔍
Cache ID: 35:3D6:40

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