CVE-2018-3779 active-support impersonates 'activesupport' gem
A malicious backdoor in the active-support Ruby gem allows remote attackers to execute arbitrary code on the system.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-3779?
CVE-2018-3779 is a critical code injection vulnerability in HackerOne active-support ruby gem, published on 10 Aug 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
active-support ruby gem 5.2.0 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.
Weakness: CWE-77
Which versions are affected by CVE-2018-3779?
2 open source packages ship an affected version, including active-support. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
active-support RubyGems | All versions | None |
active-support RubyGems | All versions | None |
Products include Activesupport Project Activesupport.
How do I fix CVE-2018-3779?
No fix has been published for CVE-2018-3779 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2018-3779 being exploited?
There is no known exploitation of CVE-2018-3779 in the wild and no public exploit code.
Other vulnerabilities in HackerOne active-support ruby gem
Sources
Also known as GHSA-2j55-pcw5-x4h2.