CVE-2019-10842

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Arbitrary code execution (via backdoor code) was discovered in bootstrap-sass 3.2.0.3, when downloaded from rubygems.org. An unauthenticated attacker can craft the ___cfduid cookie value with base64 arbitrary code to be executed via eval(), which can be leveraged to execute arbitrary code on the target system. Note that there are three underscore characters in the cookie name. This is unrelated to the __cfduid cookie that is legitimately used by Cloudflare.

Se ha descubierto una ejecución de código arbitrario (mediante código de puerta trasera) en bootstrap-sass 3.2.0.3, cuando se descarga desde rubygems.org. Un atacante no autenticado puede manipular el valor de la cookie ___cfduid con código arbitrario base64 para que se ejecute mediante eval(). Esto puede explotarse para ejecutar código arbitrario en el sistema objetivo. Nótese que hay tres guiones bajos en el nombre de la cookie. Esto no está relacionado con la cookie __cfduid que Cloudflare usa de manera legítima.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-04-03 CVE Reserved
2019-04-04 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-10-04 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-94: Improper Control of Generation of Code ('Code Injection')

CAPEC

References (4)

URL	Tag	Source
http://dgb.github.io/2019/04/05/bootstrap-sass-backdoor.html	Third Party Advisory
https://github.com/twbs/bootstrap-sass/issues/1195	Issue Tracking

URL	Date	SRC
https://snyk.io/blog/malicious-remote-code-execution-backdoor-discovered-in-the-popular-bootstrap-sass-ruby-gem	2024-08-04
https://snyk.io/vuln/SNYK-RUBY-BOOTSTRAPSASS-174093	2024-08-04

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
Getbootstrap Search vendor "Getbootstrap"		Bootstrap-sass Search vendor "Getbootstrap" for product "Bootstrap-sass"				3.2.0.3 Search vendor "Getbootstrap" for product "Bootstrap-sass" and version "3.2.0.3"		ruby		Affected