Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2019-10842

Published: 4 April 2019

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.

Notes

AuthorNote
msalvatore
v3.2.0.3 was removed from the RubyGEms registry and replaced with a
malicious version on March 26th, 2019. The malicious version was
removed 1 hour after it was uploaded. None of the bootstrap
packages in Ubuntu are affected.

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
compass-bootstrap-sass-plugin
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

node-bootstrap-sass
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
cosmic Not vulnerable
(code not present)
trusty Does not exist

upstream Needs triage

xenial Does not exist

ruby-bootstrap-sass
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
cosmic Not vulnerable
(code not present)
trusty Does not exist
(trusty was not-affected [code not present])
upstream Needs triage

xenial Not vulnerable
(code not present)

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H