CVE-2017-11173

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Missing anchor in generated regex for rack-cors before 0.4.1 allows a malicious third-party site to perform CORS requests. If the configuration were intended to allow only the trusted example.com domain name and not the malicious example.net domain name, then example.com.example.net (as well as example.com-example.net) would be inadvertently allowed.

La falta de anclaje en la expresión regular (regex) generada para rack-cors anterior a versión 0.4.1 permite que un sitio de terceros malicioso realice peticiones CORS. Si la configuración estuviera destinada a permitir solo el nombre de dominio de confianza example.com y no el nombre de dominio malicioso example.net, entonces, podría ser permitido inadvertidamente example.com.example.net (así como example.com-example.net).

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-07-11 CVE Reserved
2017-07-13 CVE Published
2023-05-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (4)

URL	Tag	Source
http://seclists.org/fulldisclosure/2017/Jul/22	Mailing List
https://packetstormsecurity.com/files/143345/rack-cors-Missing-Anchor.html	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/cyu/rack-cors/commit/42ebe6caa8e85ffa9c8a171bda668ba1acc7a5e6	2020-03-03

URL	Date	SRC
http://www.debian.org/security/2017/dsa-3931	2020-03-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Rack-cors Project Search vendor "Rack-cors Project"		Rack-cors Search vendor "Rack-cors Project" for product "Rack-cors"				< 0.4.1 Search vendor "Rack-cors Project" for product "Rack-cors" and version " < 0.4.1"		ruby		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