Mozilla Firefox up to 46 Java Applet Content Security Policy cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Mozilla Firefox up to 46. Affected by this vulnerability is an unknown functionality of the component Java Applet Handler. This manipulation causes cross site scripting (Content Security Policy). This vulnerability is handled as CVE-2016-2833. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 46 (Web Browser). It has been declared as critical. Affected by this vulnerability is some unknown functionality of the component Java Applet Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability (Content Security Policy). The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Mozilla Firefox before 47.0 ignores Content Security Policy (CSP) directives for cross-domain Java applets, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via a crafted applet.

The weakness was released 06/13/2016 (Website). The advisory is shared at bugzilla.mozilla.org. This vulnerability is known as CVE-2016-2833 since 03/01/2016. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. 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 T1059.007 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 91589 (openSUSE Security Update : MozillaFirefox / mozilla-nss (openSUSE-2016-714)), 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 196493 (Ubuntu Security Notification for Firefox Vulnerabilities (USN-2993-1)).

Upgrading to version 47.0 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (91589). Entries connected to this vulnerability are available at VDB-87889, VDB-87890, VDB-87895 and VDB-87898. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

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

NVD Base Score: 6.1
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

Name: Content Security Policy
Class: Cross site scripting / Content Security Policy
CWE: CWE-79 / CWE-94 / CWE-74
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: 91589
Nessus Name: openSUSE Security Update : MozillaFirefox / mozilla-nss (openSUSE-2016-714)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 54508
OpenVAS Name: Mozilla Firefox Security Updates( mfsa_2016-49_2016-61 )-Windows
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Firefox 47.0

Timelineinfo

03/01/2016 🔍
06/11/2016 +102 days 🔍
06/13/2016 +2 days 🔍
06/13/2016 +0 days 🔍
06/14/2016 +1 days 🔍
06/14/2016 +0 days 🔍
08/23/2022 +2261 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: USN-2993-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-2833 (🔍)
GCVE (CVE): GCVE-0-2016-2833
GCVE (VulDB): GCVE-100-87901
SecurityTracker: 1036057

See also: 🔍

Entryinfo

Created: 06/14/2016 09:11
Updated: 08/23/2022 14:24
Changes: 06/14/2016 09:11 (65), 01/19/2019 16:25 (11), 08/23/2022 14:24 (5)
Complete: 🔍
Cache ID: 216:672:103

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