Download From Here: http://soroush.secproject.com/downloadable/XSUH_FF_1.pdf
Or Here: http://0me.me/demo/XSUH/XSUH_FF_1.pdf

Proof of Concept: http://0me.me/demo/XSUH/XSUH_demo_firefox_all_in_1.html

Note:  This technique has been tested on Mozilla Firefox 3.6.3, 3.5.9, 3.6.4build5 (26th May 2010).

Therefore, we need something else as a signature to improve the scanners result. And as a solution we can use a “/” as an identifier. In case of requesting a valid directory without adding a slash at the end of it, the web-server will add an slash automatically, and in case of having an invalid directory there will not be any slash at the end of the directory name.

Some examples:

Invalid Directory: http://www.microsoft.com/foobars

Valid Directory: http://www.microsoft.com/test

——–

Invalid Directory: http://code.google.com/foobars

Valid Directory: http://code.google.com/js

——–

Invalid Directory: http://www.facebook.com/foobars

Valid Directory: http://www.facebook.com/admin

——–

Invalid Directory: http://uk.yahoo.com/foobars

Valid Directory: http://uk.yahoo.com/private

——–

Cheers,

Soroush Dalili

Some new methods of bypassing file uploaders protections have been discussed. As an example bypassing by using: trailing spaces and dots, “::$data.”, direct Null char, IIS semi-colon  bug, and so on.

Uploading files by using web applications is very common. However, there is always a high risk around this matter. In case of uploading a web-shell file which can be absolutely malicious, an attacker can get the same privilege of access as the web application to the server. In this paper, which is mostly around the Windows-based web applications, some general solutions for protecting against this type of attack have been suggested. Moreover, as a proof of concept, some of the most general protection methods and the way of bypassing them have been discussed.

This article is an educational article to improve the security of the web applications. And, the author of this article (“Soroush Dalili”) does not accept and has no responsibility about the content or usage of this article in any other way. Any other usage of this article except the legal ones is completely prohibited.

Please respect the copyright and mention the name of the author (“Soroush Dalili”) in case of using this article.

Download this article by clicking here. (http://soroush.secproject.com/downloadable/Improve File Uploaders’ Protections.pdf)

<script>
function recursiveFunc(){setInterval(“recursiveFunc()”,1);}
recursiveFunc();
</script>

Just save it as an HTML file, and try to open it with your browsers. You can convert “1” to “0” to get better result in Mozilla Firefox and Chrome.
I reported it to Mozilla Firefox as a bug.
Good luck.

Google will (or already) know the users’ information!

News:

“Google pushes security with Public DNS” -> So, Google DNS can collect all the websites which is viewed by the users …

“Browsers use Google to detect web forgery -> So, a browser send a request to Google before openning a website for you! …

“The best search engine for all” -> So, Google can collect your keywords! …

“The best public mail service” -> So, Google can collect your emails …

“Google owned Youtube” -> So, Google can collect your videos …

“Google codes” -> So, Google can collect your source codes …

“Google documents” -> So, Google can collect your documents …

“Google photos” -> So, Google can collect your photos …

“Google messenger” -> So, Google can collect the messages …

“Most of the websites use Google web analyzer (tracker)” -> So, Google can track the websites’ information and also their customers! …

“Google Wave” -> So, Google can collect the blogs ,e-mails, instant messaging, FTPs, social networking’s, and so on’s information! …

“Google powerful translators” -> So, Google can understand why you are saying in other languages!

“Searchable images/sounds/videos by text or another object!” -> So, Google can search in users’ collected data …

“Chrome OS” -> So, Google can do anything with your computer …

AND etc (see http://www.google.co.uk/intl/en/options/ and http://www.googlelabs.com/)…

We are waiting for the most powerful shopping centre by Google!

However, we should trust Google in order to have happier and easier life!

Google = No Pain, No Gain!

Best wishes ;)

Soroush

I reported these two vulns. to its website just for having more security. And, I think these two vulnerabilities are fixed now.

However, I believe that still 70% of webistes are vulnerable against the OWASP TOP 10!

Also, I think you should read “Survey: Majority of Web sites vulnerable” as well.

Cheers,

Soroush

]]> http://soroush.secproject.com/blog/2009/11/my-belief-70-of-websites-are-vulnerable/feed/ 0 http://soroush.secproject.com/blog/2009/11/how-to-stop-hardware-key-loggers/ http://soroush.secproject.com/blog/2009/11/how-to-stop-hardware-key-loggers/#comments Sun, 29 Nov 2009 14:33:22 +0000 Soroush Dalili http://soroush.secproject.com/blog/?p=171 Nowadays new generations of hardware key-loggers are emerged, and unfortunately attackers are using them intensively to steal the keystrokes of users. These key-loggers are OS independent and are in different shapes. They are even capable of stealing the BIOS password. Most of them look like a convertor for PS/2 and/or USB to PS/2 and/or USB (Fig. 1). Besides, some of them are chipsets which are embedded in the keyboard itself (Fig. 2). And others use electromagnetic features to steal the keystrokes which are put around the wire of the keyboard or work remotely by capturing the frequency spectrum of the keyboard communication[1]. The problem is that these hardware key-loggers have become very cheap and simply available[2]. Moreover, there are some free articles about how to make their circuits[3].

So, how can we stop it if we could not remove its hardware from our computer or there is a danger of electromagnetic key-logger?

The first and the simplest idea is using an on-screen keyboard and click on it by using a mouse. However in order to get the best result, this on-screen keyboard should be dynamic in order to prevent a hardware key-logger for the mouse itself, which captures the mouse movements and its clicks. Another way is using encryption between the keyboard and its driver. For instance, there is no doubt that by using TPM and having strong encryption methods between keyboard and motherboard (or OS itself), the keyboard can encrypt the keystrokes before sending them to the computer. But, I want to be more initiative. Another idea can be using an optical-dynamic keyboard device which shows a keyboard on your desk or on your palm, and you can touch it in order to press a key (Fig. 3). There is also an application which claims that it can detect a hardware key-logger, but I have not tried it yet and I think it is still possible to hide a hardware key-logger completely from the OS.

Figure 3.

This text is completely based on my own idea, so please respect the copyright.

[2] http://www.google.co.uk/products?q=hardware+keylogger

[3] http://derek.chezmarcotte.ca/?page_id=24

I hope you enjoy :)

Click here to download this mini-article!

Cheers,

Soroush

Click here to download the PDF file.

This article is ready to download from these links:

http://soroush.secproject.com/downloadable/ASP_Security_Soroush_Dalili.pdf

or

http://rapidshare.com/files/273684865/ASP_Security_Soroush_Dalili.zip

Cheers

Soroush

BugReport.ir (before soroush.secproject.com website)

And

Soroush.SecProject.Com (nowadays)

Now, because of using some tricks in these XSSes, they can be interesting. I want to describe some of these tricks here:

1- Insert JavaScript code inside of available script. In order to insert proper arbitrary JavaScript, we must insert something to close left side of JavaScript, then insert our own JavaScript, and finally close the right side of JavaScript to prevent errors.

As you can see in “http://www.xssed.com/mirror/39834/”, the XSS query is this:

?sx=”});};document.write(‘This is XSS test – BugReport.ir’);alert(‘Safe XSS BugReport.ir’);function startVideoPlayer(){getFailQS({destURL:”",show:”

In this query, first I closed the defined function by ["});};] , and then I inserted my arbitrary script there. After that, I used [function startVideoPlayer(){getFailQS({destURL:"",show:"]  to open a function to complete the right side of the code to prevent a JavaScript error.

You can see some other example of this group:

http://www.xssed.com/mirror/41138/

http://www.xssed.com/mirror/41800/

http://www.xssed.com/mirror/55622/

2- Insert JavaScript code in another format. Sometimes we can insert our JavaScript code via the some other forms of input such as Base64. In this way, we must look for algorithms of inputs.

As you can see in “http://www.xssed.com/mirror/55624/”, I inserted a Base64 string in order to perform XSS attack.

3- Using http://ha.ckers.org/xss.html techniques. There are always something new and fantastic in this XSS cheat sheet! I learned many things from it.

Example to bypass filters: “http://www.xssed.com/mirror/56197/”

4- Use your own idea to insert your codes. We must be creative in performing XSS. For example in “http://www.xssed.com/mirror/56651/”, I could not insert any string for my alert() function, so I insert something in title of the page, and then read them in my alert() function. It is obvious that I could use eval() function to execute some codes by this method.

?wrd=Tested in Mozilla (Onmouseover) — IRSDL is HERE — Soroush.SecProject.Com — Another XSS Trick in Yahoo&prn=[irsdl]&pth=test&opt=onmouseover%3dalert(window.document.title.substring(15)) onmouseout%3dalert(/SeeYou/)

Another example is “http://www.xssed.com/mirror/40384/” which is based on the “http://www.bugreport.ir/index_38.htm”:

[DNN URL] /Default.aspx/”onmouseover=”x=’al’;x=x+’ert(/WWW.BugReport.IR/)’;eval(x);alert().aspx

In this XSS, I used a feature of .Net which is “Slash after .aspx” in order to change PATH_INFO parameter in Server Variable. As “Dot Net Nuke (DNN)” used PATH_INFO instead of URL parameter, path was inserted into the default.aspx page without any checking. So I inserted “onmouseover” event there. But, there was a problem with alert() function which DNN could recognize it and omit it plus all of the string after it! So, I inserted alert() function as a string into the “x” variable, and then evaluate it by using eval() function. Another problem was that DNN needed “.aspx” at the end of the request (before Get parameters)! So, I inserted an “alert().aspx” at the end of the query which I knew that DNN will omit it plus all the string after that.

Moreover, you can see in “http://www.bugreport.ir/index_38.htm” that I used another query which is:

http://[DNN URL]/Default.aspx/bugreport/”onmouseover=”var a=’.aspx?’;document.location=’http://www.bugreport.ir/?archive’;

In this example, I must use a “:” for the “http://www.bugreport.ir/?archive”, but I could not insert it before the “?” because of getting error by the IIS (“:” is used to indicate a port). So, I inserted a “.aspx?” in a temp “a” variable in order to have: 1- a “.aspx” at the end of the query (before Get parameters) 2- insert “:” into the “http://”.

Note: I could not use “onmoueover” after the “?” because it replaced the double quotation in Get parameter by %22.

Good Luck.

I think anonymization with HTTP protocol is easier than the others when you are using TOR or some anonymous VPNs.
So, I think:
1- The free web hosting must have some process to identify their users correctly!
2- Browsers must have some features to make free web hosting websites in max of security protection, and also, they must show some security warning about these websites.
3- Firewalls and Antivirus must have some protection against these free websites.

Do you have any idea?

So, if I execute Index.asp, I will execute all 3 other files which I mentioned too.

Question: What will happen if I point to the Main.asp or Header.asp directly without using the Index.asp?
Answer: If Main.asp or Header.asp does not include Check.asp, attacker can see the admin page without having the administrator credential!
Result: I see a lot of web application which had this problem!

Now assume that Check.asp is something like this:
———– Begin Check.asp ———–
some lines of codes blah blah blah
<%
‘ Get an input from the user
1 Input_CurrentFolder = Request(“currentFolder”)

2 ‘ in order to get the root directory we must set an admin session
3 session(“admin”)=true

4 directory = GetDirectory(Input_CurrentFolder)

‘Terminate admin session for the security!
5 session(“admin”)=false

%>
some lines of codes blah blah blah
———– End Check.asp ———–

I want to speak about the session. What do you think about these codes? Is there any security problem?

Question1: How can a user keep session(“admin”)=true for him/herself?
Answer1: In order to do that, user needs to stop execution on line 4!
Question2: Now, how can a user stop execution on line 4?
Answer2: User must stop running the program on line 4. So, he/she must create an error on that line! So, actually it depends on some factors. And, I want to show you 2 of them which the first one is related to subject of this article.

1- First situation: Check.asp does not contain “GetDirectory” function and this function is in Header.asp. Now if attacker point directly to the Check.asp, he/she can get the admin session! Because the program will be crashed on line 4!
2- Another situation: the “GetDirectory” function must not work with each “Input_CurrentFolder”. In other words, “GetDirectory” function must crash because of some value of “Input_CurrentFolder”.
Note: we must not have something like “On error resume next” which force the program to continue.
Result: I think this vulnerability is not a strange one; However, it is not very common. I had seen this vulnerability in some programs such as the old version of “hosting controller”!
———– End Example1 ———–
———– Begin Example2 ———–
Example2. (PHP, ?)
This is not new example but it is related to this subject.
Assume that we have:
1. SessionControl.php ->(Secured) which control the user’s session
2. EditContent.php -> by using this file, administrator can edit the website’s pages
3. AdminContent.php -> (Secured) which includes SessionControl.php and EditContent.php.

And assume that EditContent.php is something like this:
———– Begin EditContent.php ———–
<?
if (!isset($_SESSION['Level'])) exit();
if ($_SESSION['Level']==’admin’)
{
some lines of codes only for admin blah blah blah
}
?>
———– End EditContent.php ———–

You can easily see that EditContent.php is insecure because there is not any session_start() in it and everyone can set $_SESSION['Level']. Just like this: http://[something]/EditContent.php?_SESSION[Level]=admin
Note: php global variables must be on.
———– End Example2 ———–

So, you saw that the catastrophic vulnerability can easily create by the bad usage of “include” techniques.

<Files ~ “(php\.ini|\.htaccess|\.php.?|\.pl|\.cgi|\.spc|\.jsp|\.cfm|\.passwd)$”>
order deny,allow
deny from all
</Files>

But I think, this code is not secure at all. I bypass it by uploading a file with this name: “testpage.PhP”. (I tested it on my web hosting)

The problem is:

This code has a case sensitive regular expression.

Note: <FilesMatch> is similar to <Files> with this problem

One solution: use this code instead of that code:

# secure directory by disabling script execution
AddHandler cgi-script .php .pl .py .jsp .asp .htm .shtml .sh .cgi
Options -ExecCGI

Useful links:

http://www.askapache.com/htaccess/using-filesmatch-and-files-in-htaccess.html

http://blog.differentpixel.com/archives/198-Lots-of-.htaccess-tips,-tricks-and-hacks.html

http://perishablepress.com/press/2006/01/10/stupid-htaccess-tricks/

Cheers