1864
In some cases , a generic password is required , although security researchers have discovered that in many cases , FTP servers can be accessed without a password .
 FTP servers: vulnerable system; can be accessed without a password: capabilities; security researchers: discoverer
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: discover vulnerability 
  Option: vulnerable system owner, vulnerability, capabilities, time, vulnerable system version, discoverer, common vulnerabilities and exposures, supported platform, vulnerable system 
Text: {0} 
Answer:
 FTP servers: vulnerable system; can be accessed without a password: capabilities; security researchers: discoverer