National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-10842 Detail

Current Description

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.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 9.8 CRITICAL
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://dgb.github.io/2019/04/05/bootstrap-sass-backdoor.html Third Party Advisory
https://github.com/twbs/bootstrap-sass/issues/1195 Issue Tracking Third Party Advisory
https://snyk.io/blog/malicious-remote-code-execution-backdoor-discovered-in-the-popular-bootstrap-sass-ruby-gem/ Exploit Third Party Advisory
https://snyk.io/vuln/SNYK-RUBY-BOOTSTRAPSASS-174093 Exploit Third Party Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-94 Improper Control of Generation of Code ('Code Injection') NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:getbootstrap:bootstrap-sass:3.2.0.3:*:*:*:*:ruby:*:*
     Show Matching CPE(s)


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-10842
NVD Published Date:
04/04/2019
NVD Last Modified:
04/11/2019