用于检测针对 TLS 客户端的 CVE-2022-21449 利用尝试的 Zeek 脚本。仅适用于 TLS 1.2 及以下版本。
zkg install https://github.com/thack1/CVE-2022-21449
对提供的 pcap 文件运行：
$ zeek -Cr pcaps/CVE-2022-21449.pcap CVE-2022-21449
#separator \x09
#set_separator ,
#empty_field (empty)
#unset_field -
#path notice
#open 2022-04-24-13-05-55
#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
1650798355.280690 CrR9204TYgm1nkpJG1 192.168.125.154 59592 192.168.125.167 443 - - - tcp CVE_2022_21449::Null_Signature Null server signature; potential CVE-2022-21449 exploit attempt - 192.168.125.154 192.168.125.167 443 - - Notice::ACTION_LOG (empty) 3600.000000 - - - - -
#close 2022-04-24-13-14-45