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CVE-2019-10842

CRITICAL

9.8

CVSS Severity Score

EPSS Score0.1260%

EPSS Percentile16.93th

PublishedApr 4, 2019

Last ModifiedNov 21, 2024

Vulnerability 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.

Affected Platforms (CPE)

📦

Getbootstrap

Bootstrap Sass

= 3.2.0.3

References & Advisories

🔗 http://dgb.github.io/2019/04/05/bootstrap-sass-backdoor.html

🔗 https://github.com/twbs/bootstrap-sass/issues/1195

🔗 https://snyk.io/blog/malicious-remote-code-execution-backdoor-discovered-in-the-popular-bootstrap-sass-ruby-gem/

🔗 https://snyk.io/vuln/SNYK-RUBY-BOOTSTRAPSASS-174093

🔗 http://dgb.github.io/2019/04/05/bootstrap-sass-backdoor.html

🔗 https://github.com/twbs/bootstrap-sass/issues/1195

🔗 https://snyk.io/blog/malicious-remote-code-execution-backdoor-discovered-in-the-popular-bootstrap-sass-ruby-gem/

🔗 https://snyk.io/vuln/SNYK-RUBY-BOOTSTRAPSASS-174093

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