CVE-2019-19916

Severity Score

6.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In Midori Browser 0.5.11 (on Windows 10), Content Security Policy (CSP) is not applied correctly to all parts of multipart content sent with the multipart/x-mixed-replace MIME type. This could result in script running where CSP should have blocked it, allowing for cross-site scripting (XSS) and other attacks when the product renders the content as HTML. Remediating this would also need to consider the polyglot case, e.g., a file that is a valid GIF image and also valid JavaScript.

En Midori Browser versión 0.5.11 (en Windows 10), Content Security Policy (CSP) no se aplica correctamente a todas las partes del contenido multiparte enviado con el tipo MIME multipart/x-mixed-replace. Esto podría resultar en que un script se ejecute donde CSP debería haberlo bloqueado, permitiendo un ataque de tipo cross-site scripting (XSS) y otros ataques cuando el producto renderiza el contenido como HTML. Remediando esto también necesitaría considerar el caso políglota, por ejemplo, un archivo que es una imagen GIF válida y también un JavaScript válido.

*Credits: N/A

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

2019-12-20 CVE Reserved
2019-12-20 CVE Published
2023-09-06 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

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

CAPEC

References (3)

URL	Tag	Source
https://blog.mozilla.org/security/2016/08/26/mitigating-mime-confusion-attacks-in-firefox	Third Party Advisory

URL	Date	SRC
https://github.com/V1n1v131r4/MIME-Confusion-Attack-on-Midori-Browser/blob/master/README.md	2024-08-05
https://portswigger.net/research/bypassing-csp-using-polyglot-jpegs	2024-08-05

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Midori-browser Search vendor "Midori-browser"	Midori Search vendor "Midori-browser" for product "Midori"	0.5.11 Search vendor "Midori-browser" for product "Midori" and version "0.5.11"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	-	-	Safe