Bootstrap-sass contains code execution backdoor
Critical severity
GitHub Reviewed
Published
Apr 4, 2019
to the GitHub Advisory Database
•
Updated Aug 25, 2023
Description
Published to the GitHub Advisory Database
Apr 4, 2019
Reviewed
Jun 16, 2020
Last updated
Aug 25, 2023
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.
References