CVE-2016-2830

Mozilla: Favicon network connection persists when page is closed (MFSA 2016-62)

Severity Score

4.3

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 preserve the network connection used for favicon resource retrieval after the associated browser window is closed, which makes it easier for remote web servers to track users by observing network traffic from multiple IP addresses.

Mozilla Firefox en versiones anteriores a 48.0 y Firefox ESR 45.x en versiones anteriores a 45.3 conserva la conexión de red usada para la recuperación de recursos favicon después de que la ventana del navegador asociado se cierre, lo que facilita a servidores web remotos rastrear usuarios mediante la observación de tráfico de red desde múltiples direcciones IP.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-03-01 CVE Reserved
2016-08-03 CVE Published
2024-01-15 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CAPEC

References (12)

URL	Tag	Source
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html	X_refsource_confirm
http://www.securityfocus.com/bid/92261	Vdb Entry
http://www.securitytracker.com/id/1036508	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00004.html	2017-08-16
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00029.html	2017-08-16
http://rhn.redhat.com/errata/RHSA-2016-1551.html	2017-08-16
http://www.debian.org/security/2016/dsa-3640	2017-08-16
http://www.mozilla.org/security/announce/2016/mfsa2016-63.html	2017-08-16
http://www.ubuntu.com/usn/USN-3044-1	2017-08-16
https://security.gentoo.org/glsa/201701-15	2017-08-16
https://access.redhat.com/security/cve/CVE-2016-2830	2016-08-03
https://bugzilla.redhat.com/show_bug.cgi?id=1342897	2016-08-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mozilla Search vendor "Mozilla"		Firefox Search vendor "Mozilla" for product "Firefox"				<= 47.0.1 Search vendor "Mozilla" for product "Firefox" and version " <= 47.0.1"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				45.1.0 Search vendor "Mozilla" for product "Firefox Esr" and version "45.1.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				45.1.1 Search vendor "Mozilla" for product "Firefox Esr" and version "45.1.1"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				45.2.0 Search vendor "Mozilla" for product "Firefox Esr" and version "45.2.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				45.3.0 Search vendor "Mozilla" for product "Firefox Esr" and version "45.3.0"		-		Affected