CVE-2013-0156

Detects Ruby on Rails servers vulnerable to object injection, remote command executions and denial of service attacks. (CVE-2013-0156)

nmap -sV --script http-vuln-cve2013-0156 <target>
nmap -sV --script http-vuln-cve2013-0156 --script-args uri="/test/" <target>

PORT   STATE SERVICE REASON
80/tcp open  http    syn-ack
| http-vuln-cve2013-0156:
|   VULNERABLE:
|   Parameter parsing vulnerabilities in several versions of Ruby on Rails allow object injection, remote command execution and Denial Of Service attacks (CVE-2013-0156)
|     State: VULNERABLE
|     Risk factor: High
|     Description:
|       All Ruby on Rails versions before 2.3.15, 3.0.x before 3.0.19, 3.1.x before 3.1.10, and 3.2.x before 3.2.11 are vulnerable to object injection, remote command execution and denial of service attacks.
|       The attackers don't need to be authenticated to exploit these vulnerabilities.
|
|     References:
|       https://groups.google.com/forum/?fromgroups=#!msg/rubyonrails-security/61bkgvnSGTQ/nehwjA8tQ8EJ
|       https://community.rapid7.com/community/metasploit/blog/2013/01/10/exploiting-ruby-on-rails-with-metasploit-cve-2013-0156
|_      http://cvedetails.com/cve/2013-0156/

Detects Ruby on Rails servers vulnerable to object injection, remote command executions and denial of service attacks. (CVE-2013-0156)

nmap -sV --script http-vuln-cve2013-0156 <target>
nmap -sV --script http-vuln-cve2013-0156 --script-args uri="/test/" <target>

PORT   STATE SERVICE REASON
80/tcp open  http    syn-ack
| http-vuln-cve2013-0156:
|   VULNERABLE:
|   Parameter parsing vulnerabilities in several versions of Ruby on Rails allow object injection, remote command execution and Denial Of Service attacks (CVE-2013-0156)
|     State: VULNERABLE
|     Risk factor: High
|     Description:
|       All Ruby on Rails versions before 2.3.15, 3.0.x before 3.0.19, 3.1.x before 3.1.10, and 3.2.x before 3.2.11 are vulnerable to object injection, remote command execution and denial of service attacks.
|       The attackers don't need to be authenticated to exploit these vulnerabilities.
|
|     References:
|       https://groups.google.com/forum/?fromgroups=#!msg/rubyonrails-security/61bkgvnSGTQ/nehwjA8tQ8EJ
|       https://community.rapid7.com/community/metasploit/blog/2013/01/10/exploiting-ruby-on-rails-with-metasploit-cve-2013-0156
|_      http://cvedetails.com/cve/2013-0156/

This module exploits a remote code execution vulnerability in the JSON request processor of the Ruby on Rails application framework. This vulnerability allows an attacker to instantiate a remote object, which in turn can be used to execute any ruby code remotely in the context of the application. This vulnerability is very similar to CVE-2013-0156. This module has been tested successfully on RoR 3.0.9, 3.0.19, and 2.3.15. The technique used by this module requires the target to be running a fairly recent version of Ruby 1.9 (since 2011 or so). Applications using Ruby 1.8 may still be exploitable using the init_with() method, but this has not been demonstrated.

msf > use exploit/multi/http/rails_json_yaml_code_exec
msf exploit(rails_json_yaml_code_exec) > show targets
    ...targets...
msf exploit(rails_json_yaml_code_exec) > set TARGET < target-id >
msf exploit(rails_json_yaml_code_exec) > show options
    ...show and set options...
msf exploit(rails_json_yaml_code_exec) > exploit

This module exploits a remote code execution vulnerability in the JSON request processor of the Ruby on Rails application framework. This vulnerability allows an attacker to instantiate a remote object, which in turn can be used to execute any ruby code remotely in the context of the application. This vulnerability is very similar to CVE-2013-0156. This module has been tested successfully on RoR 3.0.9, 3.0.19, and 2.3.15. The technique used by this module requires the target to be running a fairly recent version of Ruby 1.9 (since 2011 or so). Applications using Ruby 1.8 may still be exploitable using the init_with() method, but this has not been demonstrated.

msf > use exploit/multi/http/rails_json_yaml_code_exec
msf exploit(rails_json_yaml_code_exec) > show targets
    ...targets...
msf exploit(rails_json_yaml_code_exec) > set TARGET < target-id >
msf exploit(rails_json_yaml_code_exec) > show options
    ...show and set options...
msf exploit(rails_json_yaml_code_exec) > exploit