CVE-2022-24491 用の Zeek ディテクター:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24491
このディテクターは、CVE-2022-24491 の悪用時に実行されるアクションである portmap set と dump を検出した場合に notice を生成します。
例:
#separator \x09
#set_separator ,
#empty_field (empty)
#unset_field -
#path notice
#open 2022-04-13-20-55-55
#fields ts uid id.orig_h id.orig_p id.resp_h id.resp_p fuid file_mime_type file_desc proto note msg sub src dst p n peer_descr actions email_dest suppress_for remote_location.country_code remote_location.region remote_location.city remote_location.latitude remote_location.longitude
#types time string addr port addr port string string string enum enum string string addr addr port count string set[enum] set[string] interval string string string double double
1649715078.678609 C4J4Th3PJpwUYZZ6gc 192.168.88.146 63839 192.168.88.157 111 - - - udp CVE202224491::POTENTIAL_CVE_2022_24491 Possible CVE-2022-24491 exploit attempt. An RPC portmap set with a RPC portmap dump was observed. - 192.168.88.146 192.168.88.157 111 - - Notice::ACTION_LOG (empty) 3600.000000 - - - - -
#close 2022-04-13-20-55-55