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phpLiteAdmin 1.1 Cross Site Request Forgery / Cross Site Scripting

phpLiteAdmin 1.1 Cross Site Request Forgery / Cross Site Scripting
Posted Jul 6, 2015
Authored by hyp3rlinx | Site hyp3rlinx.altervista.org

phpLiteAdmin version 1.1 suffers from cross site request forgery and cross site scripting vulnerabilities.

tags | exploit, vulnerability, xss, add administrator, csrf
advisories | CVE-2015-6518
SHA-256 | 4283cc61827ee3aa0bb5b327467b0f012ea503321ee6a96b94ce7e7159313d17

phpLiteAdmin 1.1 Cross Site Request Forgery / Cross Site Scripting

Change Mirror Download
[+] Credits: John Page ( hyp3rlinx )

[+] Domains: hyp3rlinx.altervista.org

[+] Source:


phpLiteAdmin v1.1

Advisory Information:
CSRF & XSS Vulnerabilities

Vulnerability Details:

No CSRF token exists when making calls to various SQL operations
therefore we can get user to drop the whole database tables if they click
on our malicious link and table is known.

There are three XSS vulnerabilities I point out first is use of 'PHP_SELF',
second is unsanitized parameter
for SQL statement when calling drop table method e.g. '
and third is an unsanitized 'table' parameter e.g. '

Lets look at the first one more in depth as its more fun.
phpliteadmin uses a PHP reserved server variable $_SERVER['PHP_SELF'] which
is vulnerable if not used correctly
allowing us to inject an XSS payload to steal session cookies and navigate
them to a place of our choosing
in order to cause mayhem.

On line 32 of 'phpliteadmin.php' we find vulnerable code:

//build the basename of this file
$nameArr = explode("?", $_SERVER['PHP_SELF']);
$thisName = $nameArr[0];
$nameArr = explode("/", $thisName);
$thisName = $nameArr[sizeof($nameArr)-1];

define("VERSION", "1.1");
define("PAGE", $thisName);

In PHP docs we find the following explanation of 'PHP_SELF':
"The filename of the currently executing script, relative to the document
ref: http://php.net/manual/en/reserved.variables.server.php

It is known $_SERVER['PHP_SELF'] can make your application insecure as we
can inject code following a forward slash "/"
But we have slight problem to overcome, we can execute code but our forward
slashes will not be processed correctly
and exploit will FAIL! leaving us with the following useless URL instead of
taking the victim to a domain of our choice.

Fail exploit example:

Failed Result:

But all is NOT lost!, we will construct our malicious URL forward slashes
in our JS call to window.open() method using
String.charCodeAt(58) for ':' and String.charCodeAt(47) for '/' which will
NOW give us what we seek, control over the users browser
taking them to some terrible dark place.

Bypass $_SERVER['PHP_SELF'] forward slash '//' processing issue:

Tada!, our successful XSS exploit:

Exploit code(s):


1- $_SERVER['PHP_SELF'] XSS exploit steals current admin session cookie and
sends to remote server:

2- SQL droptable XSS:

3- SQL table XSS:

Drop tables:

Disclosure Timeline:

Vendor Notification: NA
July 5, 2015 : Public Disclosure

Severity Level:


Request Method(s): [+] GET

Vulnerable Product: [+] phpliteadmin_v1-1

Vulnerable Parameter(s): [+] $_SERVER['PHP_SELF'], droptable, table

Affected Area(s): [+] Admin


[+] Disclaimer
Permission is hereby granted for the redistribution of this advisory,
provided that it is not altered except by reformatting it, and that due
credit is given. Permission is explicitly given for insertion in
vulnerability databases and similar, provided that due credit is given to
the author. The author is not responsible for any misuse of the information
contained herein and prohibits any malicious use of all security related
information or exploits by the author or elsewhere.

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