Nullam Blog Multiple Remote Vulnerabilities

2009-09-1000:00:00

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******** Salvatore "drosophila" Fresta ********

[+] Application: Nullam Blog
[+] Version: 0.1.2
[+] Website: http://nullam.net/

[+] Bugs: [A] Local File Inclusion
[B] File Disclosure
[C] Multiple Blind SQL Injection
[D] SQL Injection
[E] Reflected XSS

[+] Exploitation: Remote
[+] Date: 10 Sep 2009

[+] Discovered by: Salvatore Fresta aka drosophila
[+] Author: Salvatore Fresta aka drosophila
[+] E-mail: drosophilaxxx [at] gmail.com

[+] Menu

1) Bugs
2) Code
3) Fix

[+] Bugs

The following flaws are tested on version 0.1.2.
Other versions may also be affected.

[A] Local File Inclusion

[-] Risk: high
[-] File affected: index.php

This bug allows a guest to include a local file.

…

$static = false;

if(!isset($_GET['p'])) {
$include = "./pages/news.php";
} else {
$include = "./pages/" . $_GET['p'] . ".php";
}

…

if(!$static) {
include($include);
}

…

[B] File Disclosure

[-] Risk: medium
[-] File affected: index.php

This bug allows a guest to view the content of a
local file.

…

if(isset($_GET['s'])) {
$static = true;
$include = "./pages/custom/" . $_GET['s'] . ".html";
}

…

if(!$static) {
include($include);
} else {
$pageSmarty = new Smarty;
$pageSmarty->assign('html', file_get_contents($include));

…

[C] Blind SQL Injection

[-] Risk: medium
[-] File affected: news.php, register.php

These bugs allows a guest to inject SQL statements
into the affected queries.

[D] SQL Injection

[-] Risk: high
[-] File affected: register.php

This bug allows a guest to inject SQL statements
into the affected query.

…

$result = mysql_query(sprintf("SELECT `uname`,`verified` FROM `users` WHERE `verifyHash`='%s' LIMIT
1;", $_GET['v'])) or die(mysql_error());
if(mysql_numrows($result) != 1) {
$msg = "Invalid verification hash! If you followed the link you received in your
email please contact an admin and request a new verification email.";
} else {
$msg = "User " . mysql_result($result, 0, 'uname') . " successfully verified! you
may now login using the form on the main page!";
}

…

[+] Code