CVE-2012-2139 Mail Gem Path Traversal vulnerability
Remote attackers can read arbitrary files via directory traversal in the Mail gem's file delivery method.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2012-2139?
CVE-2012-2139 is a medium-severity path traversal vulnerability in n/a, published on 18 Jul 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Directory traversal vulnerability in lib/mail/network/delivery_methods/file_delivery.rb in the Mail gem before 2.4.4 for Ruby allows remote attackers to read arbitrary files via a .. (dot dot) in the to parameter.
Weakness: CWE-22
Which versions are affected by CVE-2012-2139?
2 open source packages ship an affected version, including mail. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
mail RubyGems | All versions | 2.4.4 |
mail RubyGems | All versions | 2.4.4 |
Products include Rubygems Mail Gem.
How do I fix CVE-2012-2139?
Upgrade mail to 2.4.4 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2012-2139 being exploited?
There is no known exploitation of CVE-2012-2139 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2012-2139, GHSA-cj92-c4fj-w9c5.