CVE-2015-7193

Mozilla: CORS preflight is bypassed when non-standard Content-Type headers are received (MFSA 2015-127)

Severity Score

7.5

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Mozilla Firefox before 42.0 and Firefox ESR 38.x before 38.4 improperly follow the CORS cross-origin request algorithm for the POST method in situations involving an unspecified Content-Type header manipulation, which allows remote attackers to bypass the Same Origin Policy by leveraging the lack of a preflight-request step.

Mozilla Firefox en versiones anteriores a 42.0 y Firefox ESR 38.x en versiones anteriores a 38.4 sigue el algoritmo de petición CORS cross-origin indebidamente para el método POST en situaciones que involucran una manipulación de la cabecera Content-Type no especificada, lo que permite a atacantes remotos eludir la Same Origin Policy mediante el aprovechamiento de la falta del paso preflight-request.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-09-16 CVE Reserved
2015-11-04 CVE Published
2023-03-07 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-254: 7PK - Security Features

CAPEC

References (22)

URL	Tag	Source
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html	X_refsource_confirm
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html	X_refsource_confirm
http://www.securityfocus.com/bid/77411	Vdb Entry
http://www.securitytracker.com/id/1034069	Vdb Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1210302	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00013.html	2016-12-07
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00015.html	2016-12-07
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00020.html	2016-12-07
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00021.html	2016-12-07
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00025.html	2016-12-07
http://lists.opensuse.org/opensuse-updates/2015-12/msg00037.html	2016-12-07
http://lists.opensuse.org/opensuse-updates/2015-12/msg00049.html	2016-12-07
http://rhn.redhat.com/errata/RHSA-2015-1982.html	2016-12-07
http://rhn.redhat.com/errata/RHSA-2015-2519.html	2016-12-07
http://www.debian.org/security/2015/dsa-3393	2016-12-07
http://www.debian.org/security/2015/dsa-3410	2016-12-07
http://www.mozilla.org/security/announce/2015/mfsa2015-127.html	2016-12-07
http://www.ubuntu.com/usn/USN-2785-1	2016-12-07
http://www.ubuntu.com/usn/USN-2819-1	2016-12-07
https://security.gentoo.org/glsa/201512-10	2016-12-07
https://access.redhat.com/security/cve/CVE-2015-7193	2015-11-26
https://bugzilla.redhat.com/show_bug.cgi?id=1277346	2015-11-26

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 Esr Search vendor "Mozilla" for product "Firefox Esr"				38.0 Search vendor "Mozilla" for product "Firefox Esr" and version "38.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.0.1 Search vendor "Mozilla" for product "Firefox Esr" and version "38.0.1"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.0.5 Search vendor "Mozilla" for product "Firefox Esr" and version "38.0.5"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.1.0 Search vendor "Mozilla" for product "Firefox Esr" and version "38.1.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.1.1 Search vendor "Mozilla" for product "Firefox Esr" and version "38.1.1"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.2.0 Search vendor "Mozilla" for product "Firefox Esr" and version "38.2.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.2.1 Search vendor "Mozilla" for product "Firefox Esr" and version "38.2.1"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				38.3.0 Search vendor "Mozilla" for product "Firefox Esr" and version "38.3.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Search vendor "Mozilla" for product "Firefox"				<= 41.0.2 Search vendor "Mozilla" for product "Firefox" and version " <= 41.0.2"		-		Affected