Title: Remote Command Injection in Ruby Gem sfpagent 0.4.14 Date: 4/15/2014
Author: Larry W. Cashdollar, @_larry0 CVE: 2014-2888 Download: http://rubygems.org/gems/sfpagent Vulnerability The list variable generated from the user supplied JSON[body] input is passed directly to the system() shell on line 649. If a user supplies a module name with shell metacharacters like ; they might be able to execute shell commands on the remote system as the sfpagent running user id. 637 code, body = get_data(address, port, '/modules') 638 raise Exception, "Unable to get modules list from {name}" if code.to_i != 200 639 640 modules = JSON[body] 641 list = '' 642 schemata.each { |m| 643 list += "{m} " if File.exist?("{modules_dir}/{m}") and 644 (not modules.has_key?(m) or modules[m] != get_local_module_hash(m, modules_dir).to_s) 645 } 646 647 return true if list == '' 648 649 if system("cd #{modules_dir}; #{install_module} #{address} #{port} #{list} 1>/dev/null 2>/tmp/install_module.error") 650 Sfp::Agent.logger.info "Push modules #{list}to #{name} [OK]" 651 else 652 Sfp::Agent.logger.warn "Push modules #{list}to #{name} [Failed]" 653 end 654 655 return true Vendor: Notified 4/15/14. Version 0.4.15 fixes this issue. Advisory: http://www.vapid.dhs.org/advisories/spfagent-remotecmd.html _______________________________________________ Sent through the Full Disclosure mailing list http://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: http://seclists.org/fulldisclosure/
