CVE-2017-7823

Mozilla: CSP sandbox directive did not create a unique origin (MFSA 2017-22)

Severity Score

5.4

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The content security policy (CSP) "sandbox" directive did not create a unique origin for the document, causing it to behave as if the "allow-same-origin" keyword were always specified. This could allow a Cross-Site Scripting (XSS) attack to be launched from unsafe content. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.

La directiva CSP (Content Security Policy) "sandbox" no creaba un origen único para el documento, provocando que se comporte como si estuviera siempre especificada la palabra clave "allow-same-origin". Esto podría permitir que se lance un ataque Cross-Site Scripting (XSS) desde contenido no seguro. Esta vulnerabilidad afecta a las versiones anteriores a la 56 de Firefox, las versiones anteriores a la 52.4 de Firefox ESR y las versiones anteriores a la 52.4 de Thunderbird.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-04-12 CVE Reserved
2017-09-29 CVE Published
2024-08-05 CVE Updated
2024-08-05 First Exploit
2024-09-14 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (14)

URL	Tag	Source
http://www.securityfocus.com/bid/101059	Third Party Advisory
http://www.securitytracker.com/id/1039465	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html	Mailing List

URL	Date	SRC
https://bugzilla.mozilla.org/show_bug.cgi?id=1396320	2024-08-05

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2017:2831	2018-08-09
https://access.redhat.com/errata/RHSA-2017:2885	2018-08-09
https://security.gentoo.org/glsa/201803-14	2018-08-09
https://www.debian.org/security/2017/dsa-3987	2018-08-09
https://www.debian.org/security/2017/dsa-4014	2018-08-09
https://www.mozilla.org/security/advisories/mfsa2017-21	2018-08-09
https://www.mozilla.org/security/advisories/mfsa2017-22	2018-08-09
https://www.mozilla.org/security/advisories/mfsa2017-23	2018-08-09
https://access.redhat.com/security/cve/CVE-2017-7823	2017-10-11
https://bugzilla.redhat.com/show_bug.cgi?id=1496655	2017-10-11

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Redhat Search vendor "Redhat"		Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop"				6.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "6.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop"				7.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server"				6.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "6.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server"				7.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Aus Search vendor "Redhat" for product "Enterprise Linux Server Aus"				7.4 Search vendor "Redhat" for product "Enterprise Linux Server Aus" and version "7.4"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Eus Search vendor "Redhat" for product "Enterprise Linux Server Eus"				7.4 Search vendor "Redhat" for product "Enterprise Linux Server Eus" and version "7.4"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Server Eus Search vendor "Redhat" for product "Enterprise Linux Server Eus"				7.5 Search vendor "Redhat" for product "Enterprise Linux Server Eus" and version "7.5"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation"				6.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "6.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation"				7.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "7.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				7.0 Search vendor "Debian" for product "Debian Linux" and version "7.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Search vendor "Mozilla" for product "Firefox"				< 56.0 Search vendor "Mozilla" for product "Firefox" and version " < 56.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				< 52.4.0 Search vendor "Mozilla" for product "Firefox Esr" and version " < 52.4.0"		-		Affected
Mozilla Search vendor "Mozilla"		Thunderbird Search vendor "Mozilla" for product "Thunderbird"				< 52.4.0 Search vendor "Mozilla" for product "Thunderbird" and version " < 52.4.0"		-		Affected