CVE-2019-10842
Bootstrap-sass contains code execution backdoor
9.8
CRITICAL
CVSS 3.1
EPSS 8.9%
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.
How to fix CVE-2019-10842
To remediate CVE-2019-10842, upgrade the affected package to a fixed version below.
- —upgrade to 3.2.0.4 or later
Is CVE-2019-10842 being exploited?
Moderate — EPSS is 8.9%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- >= 3.2.0.3, < 3.2.0.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |