4.3
MEDIUM
CVE-2016-2820
Mozilla Firefox Origin Misprotection Firewall
Description

The Firefox Health Reports (aka FHR or about:healthreport) feature in Mozilla Firefox before 46.0 does not properly restrict the origin of events, which makes it easier for remote attackers to modify sharing preferences by leveraging access to the remote-report IFRAME element.

INFO

Published Date :

April 30, 2016, 5:59 p.m.

Last Modified :

July 1, 2017, 1:29 a.m.

Remotely Exploitable :

Yes !

Impact Score :

1.4

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2016-2820 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Mozilla firefox

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2016-2820 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2016-2820 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Jul. 01, 2017

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/201701-15 [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 01, 2016

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00005.html [No Types Assigned]
    Added Reference http://www.ubuntu.com/usn/USN-2936-1 [No Types Assigned]
    Added Reference http://www.ubuntu.com/usn/USN-2936-2 [No Types Assigned]
    Added Reference http://lists.opensuse.org/opensuse-updates/2016-05/msg00038.html [No Types Assigned]
    Added Reference http://www.ubuntu.com/usn/USN-2936-3 [No Types Assigned]
    Added Reference http://www.securitytracker.com/id/1035692 [No Types Assigned]
  • Modified Analysis by [email protected]

    May. 04, 2016

    Action Type Old Value New Value
    Added CPE Configuration Configuration 1 OR *cpe:2.3:a:mozilla:firefox:45.0.2:*:*:*:*:*:*:* (and previous)
    Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
    Changed Reference Type http://www.mozilla.org/security/announce/2016/mfsa2016-48.html No Types Assigned http://www.mozilla.org/security/announce/2016/mfsa2016-48.html Advisory
    Added CWE CWE-284
  • Initial Analysis by [email protected]

    May. 04, 2016

    Action Type Old Value New Value
  • CVE Translated by [email protected]

    May. 02, 2016

    Action Type Old Value New Value
    Removed Translation Vulnerabilidad no especificada en el componente PeopleSoft Enterprise PeopleTools en Oracle PeopleSoft Products 8.49.31, 8.50.20 y 8.51.11 permite a usuarios autenticados remotos afectar a la integridad a través de vectores desconocidos.
    Added Translation La funcionalidad Firefox Health Reports (también conocida como FHR o about:healthreport) en Mozilla Firefox en versiones anteriores a 46.0 no restringe adecuadamente el origen de eventos, lo que facilita a atacantes remotos modificar preferencias de compartición aprovechando acceso al elemento IFRAME remote-report.
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2016-2820 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.91 }} 0.00%

score

0.80337

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability