VDB-ID: 71
Title: Vulnerability Report for Ruby Gem lingq-0.3.1
Vulnerability Date: 2014-06-01
Download: http://rubygems.org/gems/lingq
Vendor:  ethan.vizitei[at]gmail.com
Notified: 2014-06-25
Vendor Contact:  ethan.vizitei[at]gmail.com
Description: Gem for interacting with the API of lingq.com. It's a language learning website, and it's pretty useful, but I want to be able to work on my flashcards offline. This gem is being written to be included in a desktop client (and maybe eventually a mobile client), but will certainly still be useful as a standalone api wrapper for other projects that want to interact with Lingq.com
Vulnerability: From: ./lingq-0.3.1/lib/lingq/client.rb

Line 46 exposes the lingq.com API key to the command line via #{@apikey} variable. If this Gem is used in the context of a rails application a remote user may be able to inject commands into the shell via special meta characters like ; and & as the variables are not sanitized.

08- attr_reader :target_language
9- attr_reader :languages
10- 
11: def initialize(api_key)

12:      @apikey = api_key
13-      load_languages!
14- end
15- 
--
43- put_with_language("lingqs/",word.params) 44- 
46: system_call("curl -X PUT -d id={word.id};status={word.status};hint={word.hint};fragment=#{word.fragment} http://www.lingq.com/api_v2/#{@target_language}/lingqs/?apikey=#{@apikey}") 47- end
CVE-IDs: 
Exploit: 
URL: http://www.vapid.dhs.org/advisories/lingq-0.3.1.html
Credit: Larry W. Cashdollar, @_larry0