ASP.NET is a Web application framework developed and marketed by Microsoft to allow programmers to build dynamic Web sites, Web applications and Web services.

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4
votes
2answers
646 views

Possible arbitrary file download vulnerability

I am auditing a possible vulnerable piece of ASP code on a Windows environment. The code is as follows: If InStr(strPath, "\Only\Download\From\Here\", CompareMethod.Text) = 0 Then Basicly it is ...
-3
votes
0answers
36 views

SSL/TLS based communication over internet between two servers hosting IIS [closed]

I'm new to the world of server(s) communication, following is my detailed scenario: Two servers both hosting IIS have to communicate over internet , messages shall be encrypted\decrypted ,session ...
0
votes
0answers
15 views

Windows User-Level RSA Key Container permissions issue

I have a simple question and I really don't know why it's not working. I've generated new RSA Keyset for user A, grant access for user B and getting error while trying to access that key. Quick ...
0
votes
1answer
26 views

Does ASP.NET guarantee the integrity of a page's controls on a post back?

Say you have an ASP.NET page that lists the prices for certain items in labels. I know it's cringe-worthy, but say you took the price of the item from the label on the page to determine what the user ...
1
vote
0answers
156 views

How should I mitigate the XSS vulnerabilities in KnockoutJS described at mustache-security?

The site Mustache-Security describes XSS vulnerabilities in KnockoutJS... The vulnerabilities come from the use of eval (or some equivalent) to convert text in the data-bind attribute to executable ...
0
votes
1answer
245 views

How do I inject JavaScript into a JPG image and execute it when uploaded?

I've recently joined a security project, and received a task to demonstrate the risk related to an end-user uploading an image containing embedded (malicious) JavaScript code. I used EXIFeditor to ...
1
vote
2answers
126 views

I can upload any file to an ASP webapp/IIS server but I do not know where (which folder), is this exploitable?

I'm able to upload any file to an ASP webapp/IIS server. My first though is to upload an ASP shell but I don't know where the file has been uploaded. I have written a Python script that beggining ...
4
votes
1answer
145 views

VB.NET stored procedure implementation?

While reviewing code for a vb.net application I have come across the following implementation of stored procedures using ExecuteDataSet Result = DBInstance.ExecuteDataSet(Name, ...
2
votes
2answers
825 views

IIS Host Header Attacks

Is IIS and ASP vulnerable to the same Host Header Attacks we have seen on Apache and Nginx? Specifically the attacks that use the HTTP Host Header to reset a password or implement web-cache poisoning. ...
1
vote
1answer
103 views

Prevent CSRF using ViewState?

According to OWASP you can prevent CSRF in a ASP.NET application if you include the SessionID in the ViewState. From the article: Viewstate can be used as a CSRF defense, as it is difficult for ...
1
vote
1answer
141 views

Uploading Executable Files

Using proxy software, I was able to bypass a file upload control file-checking for an asp.net system I am pen testing. I noticed they are saving the file into the database as bytes, and it is ...
3
votes
0answers
21 views

SQL Injection via Unicode [duplicate]

My team currently uses ASP.NET with MS SQL Server for our software. Security has only become important since I started, in which there is injection vulnerabilities everywhere. Due to current ...
0
votes
4answers
551 views

SQL Injection via Unicode

My team currently uses ASP.NET with MS SQL Server for our software. Security has only become important since I started, in which there is injection vulnerabilities everywhere. Due to current ...
1
vote
1answer
197 views

IIS 7.5 WebDav Security Issues with Students

Hello Currently I am setting up a server for college students (this includes tech-savy IT students as well) and I will be using IIS 7.5 with Webdav for the students to access their files from home. ...
0
votes
3answers
99 views

Restrict request to Android and Iphone App only?

I have a ASP.NET/IIS server. I want to restrict my server to only accept request from Android and Iphone(IOS) applications. I have heard about HMAC. Can HMAC help me?
13
votes
3answers
3k views

What risks do Cookieless sessions have? What are the mitigations?

I'm debating if I should support cookieless sessions in my web app. It would look something like this: http://www.example.com/(S(lit3py55t21z5v55vlm25s55))/orderform.aspx Since the URL is never ...
2
votes
1answer
112 views

.NET provides 8+ ways to encode data to prevent XSS attacks. Which one should I use when? [closed]

I'm looking at ways to use .NET to prevent XSS attacks and have come across the following methods to encode data: string asdf = WebUtility.UrlEncode(code); string asdf1 = ...
-2
votes
1answer
185 views

How are .NET websites hacked? [closed]

I have heard many times that hacking .NET websites is different from others. What's the technique used by hackers to hack .NET websites, and how can we secure .NET websites?
2
votes
1answer
91 views

Does PHP have a XSS API?

ASP.NET has a cross site scripting API by default, however does PHP have a cross site scripting prevention API?
0
votes
1answer
169 views

Is ASP.net More Secure than PHP in GENERAL? [closed]

In other words, my (long version) question is: Are developers able to get away with, more using ASP.net than PHP in terms of writing secure code for their apps? I ask this because ASP.net has many ...
8
votes
2answers
351 views

Are userid and password needed in order to pentest a website?

We are a company that has many web applications developed in ASP.NET. Our Internet service provider (Telefonica) wants to test our web sites looking for vulnerabilities. For that, they are asking us ...
2
votes
1answer
309 views

Security implications of granting IIS user group folder modify permissions

I have an Application Pool in IIS running under the standard AppPoolIdentity as part of the IIS_IUSRS group. What are the security implications of granting AppPoolIdentity modify and create ...
3
votes
1answer
415 views

Should we bother with cell-level encryption for an ASP.NET/SQL Server web application?

(Cross-posting this here on the advice of a user at stackoverflow...) Got a philosophical security question for everyone. I'm sketching out an ASP.NET web application design where sensitive data for ...
1
vote
2answers
3k views

Missing Secure Attribute in Encrypted Session (SSL) Cookie Recheck

I tested a web application with a commercial tool (IBM AppScan) for penetration test. I found a bug which is related to Missing Secure Attribute in Encrypted Session (SSL) Cookie. The web ...
3
votes
1answer
655 views

ASP.NET Web API and potential XSS

I'm wondering if my ASP.NET Web API had an XSS vulnerability as my controller didn't have a method to handle the default GET call. Without the GET method being handled in the code a call to ...
3
votes
3answers
223 views

Can a mismatched server encoding on HTTP POST or GET result in a security issue?

It is possible for a server to parse HTTP POST and GET data with a fixed encoding or one that is dynamic with the client's response. Consider the situation where a client uses UTF7,32 or any other ...
2
votes
1answer
344 views

What method for CSRF token generation should I use in my scenario?

I'm working on a RESTful API to work with my AngularJS application. Authenticating works by generating an ASP.NET FormsAuthenticationTicket. It is stored in a cookie using ...
3
votes
4answers
256 views

Shared hosting vs VPS

I have an Asp.net site. Which hosting system do I need to secure it adequately* against anyone reading private information that's on the server? This is assuming I'm not worried about the sysadmins ...
2
votes
2answers
2k views

How to stop other website to send cross domain ajax requests?

From 2 different applications, I was able to send cross-orgin requests. Though the browser return an error of Cross-Origin, but my server is still receiving and executing the request. For example, ...
2
votes
4answers
2k views

Is replacing all apostrophes with two apostrophes sufficient to prevent SQL-injection on MSSQL?

I'm working in a web site that doesn't use parameters on SQL queries. All the queries are adhoc and the way they are doing the input validation seems good to me, I'm not able to break it to do SQL ...
0
votes
0answers
23 views

IIS 7.5 WebDav with Student Security [duplicate]

Hello Currently I am setting up a server for college students (this includes tech-savy IT students as well) and I will be using IIS 7.5 with Webdav for the students to access their files from home. ...
-4
votes
3answers
142 views

How to be secure your page from Zeus Trojan?

How can I prevent from an attack like this? http://www.youtube.com/watch?v=bgt98VajOv4 Edit: Sorry guys, I think I can't explain my question well. I don't want to secure myself from that trojan. I ...
10
votes
6answers
5k views

Is this a ViewState attack?

I recently found this request in the event log: Client IP: 193.203.XX.XX Port: 53080 User-Agent: Mozilla/4.0 (compatible; Synapse) ViewState: -1' Referer: Now, the ViewState: -1' part combined ...
5
votes
1answer
344 views

Web Applications terminate strings on null-byte

I have just been doing some penetration testing on a site, and I have noticed (and I have noticed before but now seems like a good point to bring it up) that putting a null byte in the search string ...
0
votes
1answer
992 views

Calling JavaScript functions from within a Style tag XSS

I've identified an XSS in a client's application where they've failed to properly sanitize a variable. The application, however, is written in ASP.NET 2.x and they have request validation turned on. ...
15
votes
5answers
2k views

Is it possible to inject values in a drop down list?

Say a ASP.NET page, or any html page for that matter, has a drop down list with a bunch of prices. On posting the page, the code looks at the selection of the drop down list for a computation. Is it ...
3
votes
2answers
493 views

IIS 7.5 impersonation threat?

I am using IIS 7.5 and I want to impersonate users for my different applications in an intranet environnement. To do so, I am considering using the asp.net mechanism with the user/password in the ...
1
vote
2answers
240 views

Web Services and WSDL Documentation Protocol

Let us assume that I have a web service in an ASP.NET project. If I turn off the WSDL documentation protocol, will other users be able to: add a service reference to the web service? discover the ...
3
votes
3answers
347 views

Understanding JVM zero day in relationship with other runtimes

I am a .net and php developer and since java has been in the news recently thanks to the string of zero days, I decided to brush up on security. In regards to the java zero days, this question has ...
9
votes
4answers
536 views

Worthwhile from security standpoint to limit database server user for ASP.NET website to only EXECUTE on stored procedures?

I know that obviously we must avoid sql injection attacks through user input validation and parametrized queries. There's already a firewall in place on the database server to limit remote ...
4
votes
1answer
532 views

Encrypted view state vulnerable?

While reading up on view state as a possible means to prevent CSRF, I came across this Microsoft Security Bulletin which states: An attacker who successfully exploited this vulnerability could ...
14
votes
7answers
1k views

Why should I hash passwords?

I've read that every good web application should hash passwords. I found many articles about hashing. So I started implementing hashing on my website and then I asked myself why should I do it? When a ...
3
votes
2answers
764 views

How to determine if ViewState has MAC enabled when crawling a page?

I was using Burp Suite to do some security testing on a site and I noticed that when it detects ViewState it will automatically tell you whether it has MAC enabled. I'm curious if anyone know of a ...
4
votes
4answers
619 views

“Forgot my password page” best practice

On a "forgot my password" page, is appropriate when user doesn't have an account to display the message "this account doesn't exist"? Or in the interest of security, should I display a success message ...
3
votes
3answers
2k views

How does a website owner decrypt ASP.NET's Viewstate, and cookies

I'd like to audit my viewstate for information I don't want to be sent down to the client. What are the steps needed to decrypt this information into human readable form? How would I decrypt the ...
5
votes
2answers
955 views

How reliable is ASP.NET's Request Validation feature?

ASP.NET offers an extra layer to protect your application from XSS attacks and injection in general which is called Request validation. On their official topic, they mention that: Even if you're ...
-2
votes
1answer
132 views

Using Old version of mysql connector's security issue [closed]

I'm using asp.net 4.0 and MySQL. Last week my hosting firm changed security level of from full to medium. MySQL connector doesn't work correctly anymore. For this reason I'm using old version of ...
5
votes
1answer
818 views

Pen Testing ASP.NET application with Backtrack

We have developed an ASP.NET Based Enterprise Application which is is soon to be released. Now, we are concerned about the security aspects of the application. I've been looking into Backtrack 5 and ...
1
vote
1answer
77 views

Password Verification Server

I posted a question here... Protecting Password Hashes with Store Procedures? ...where I asked about denying a website's database user CRUD access to the tables that store password hashes except ...
1
vote
1answer
1k views

ASP.net vs PHP security? [closed]

I have been told that generally speaking, asp.net web apps tend to be more secure than php, since asp.net has some automatic security measures, for example, by default it doesn't allow remote file ...