CVE-2012-2126 RubyGems does not verify SSL certificate

Medium 4.3 Published Updated

RubyGems fails to verify SSL certificates, allowing attackers to inject malicious code into gems during installation via man-in-the-middle attacks.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2012-2126?

CVE-2012-2126 is a medium-severity vulnerability in n/a, published on 1 Oct 2013. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

RubyGems before 1.8.23 does not verify an SSL certificate, which allows remote attackers to modify a gem during installation via a man-in-the-middle attack.

Weakness: CWE-310

Which versions are affected by CVE-2012-2126?

2 open source packages ship an affected version, including rubygems-update. It affects 1 product.

PackageAffectedFixed in
rubygems-update RubyGemsAll versions1.8.23
rubygems-update RubyGemsAll versions1.8.23

Products include Rubygems Rubygems.

How do I fix CVE-2012-2126?

Upgrade rubygems-update to 1.8.23 or later.

Is CVE-2012-2126 being exploited?

There is no known exploitation of CVE-2012-2126 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2012-2126, GHSA-5mgj-mvv8-46mw, UBUNTU-CVE-2012-2126.

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