CVE-2018-3779
active-support impersonates 'activesupport' gem
Description
The `active-support` ruby gem gem is malware and duplicates the official `activesupport` (no hyphen) gem, but adds a compiled extension. The extension attempts to resolve a base64 encoded domain (29faea63.planfhntage.de), downloads a payload, and executes. This trojan horse gem could allow a remote attacker to execute arbitrary code on the system, caused by containing a malicious backdoor. An attacker could exploit this vulnerability to execute arbitrary code on the system. No version of this gem should be considered safe.
How to fix CVE-2018-3779
No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.
- —no fix listed
Is CVE-2018-3779 being exploited?
Moderate — EPSS is 6.1%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- from 0