Path traversal in Action Mailer - CVE-2014-7818
Published: November 8, 2014 / Updated: July 28, 2020
Vulnerability identifier: #VU32464
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2014-7818
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences in actionpack/lib/action_dispatch/middleware/static.rb in Action Pack in Ruby on Rails 3.x before 3.2.20, 4.0.x before 4.0.11, 4.1.x before 4.1.7, and 4.2.x before 4.2.0.beta3, when serve_static_assets is enabled,. A remote authenticated attacker can send a specially crafted HTTP request and remote attackers to determine the existence of files outside the application root via a /.%2F sequence.
Affected software
Action Mailer
ruby-actionmailer (Alpine package)
ruby-redmine-actionmailer (Alpine package)
ruby-activesupport (Alpine package)
ruby-actionpack (Alpine package)
ruby-activemodel (Alpine package)
ruby-actionmailer (Alpine package)
ruby-redmine-actionmailer (Alpine package)
ruby-activesupport (Alpine package)
ruby-actionpack (Alpine package)
ruby-activemodel (Alpine package)
How to mitigate CVE-2014-7818
The vendor has issued the following versions to address this vulnerability: 3.2.20, 4.0.11, 4.1.7, 4.2.0.
Action Mailer - addressed in versions 3.2.20, 4.0.11, 4.1.7, 4.2.0
ruby-actionmailer (Alpine package) - update to 4.0.12-r0
ruby-redmine-actionmailer (Alpine package) - update to 3.2.21-r0
ruby-activesupport (Alpine package) - update to 4.0.7-r0
ruby-actionpack (Alpine package) - update to 4.0.7-r0
ruby-activemodel (Alpine package) - update to 4.0.7-r0
ruby-actionmailer (Alpine package) - update to 4.0.12-r0
ruby-redmine-actionmailer (Alpine package) - update to 3.2.21-r0
ruby-activesupport (Alpine package) - update to 4.0.7-r0
ruby-actionpack (Alpine package) - update to 4.0.7-r0
ruby-activemodel (Alpine package) - update to 4.0.7-r0