404 Error Aspxerrorpath
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Aspxerrorpath Exploit
Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join 500 aspx aspxerrorpath them; it only takes a minute: Sign up ASP.NET aspxerrorpath in URL up vote 14 down vote favorite 1 I have a site where I use CustomErrors in the web.config to specify a custom error page, and that's working aspxerrorpath c# just fine. The custom 404 page is also specified in the IIS configuration (because if it's not, I don't get my custom 404 page). But I have some logic that kicks in if a user gets a 404 that looks at their requested URL and make a navigation suggestion, if appropriate. This logic relies on the aspxerrorpath value. On my development PC, the aspxerrorpath is correctly appended to the URL, like so: http://localhost:3092/FileNotFound.aspx?aspxerrorpath=/badpage.aspx, but on my test site,
Remove Aspxerrorpath Querystring
there's no aspxerrorpath appended to the URL, so all of my custom logic is bypassed and my suggestions don't work. I'm not sure if this is an IIS config issue or something else. The web server is Windows Server 2008 with IIS 7. Any thoughts? Many Thanks. .net asp.net iis .net-3.5 iis-7 share|improve this question asked Nov 5 '08 at 23:27 theog 66511330 On the server, does it get redirected to FileNotFound.aspx or does the url stay the same when the error occurs? Is there a value for defaultRedirect in the web.config? If you remove the values in that element, does the behavior change? –John Sheehan - Runscope Nov 5 '08 at 23:40 Thanks John. More info: On the server, the URL stays the same (it does not go to FileNotFound.aspx). There is no defaultRedirect value in the web.config. –theog Nov 5 '08 at 23:57 add a comment| 2 Answers 2 active oldest votes up vote 16 down vote The aspxerrorpath parameter is passed if the error was caught by .NET (and the error page specified in web.config is used). This happens if you're using the development web server, or if IIS is configured not to check that the file exists. If IIS checks that the file exists, then the custom error configured in IIS is used, and the requested URL is included in the querystring as something like http://example.com/FileNo
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Notfound Aspxerrorpath=
x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up AspxErrorPath http://stackoverflow.com/questions/267138/asp-net-aspxerrorpath-in-url in Custom Error Page up vote 8 down vote favorite 1 We currently has a page that is used to display a generic error message when errors occur on our website. It has no functionality at all other than displaying a label that mentions there was an error. Here is my issue, our client has ran a security review and tells us our http://stackoverflow.com/questions/4726381/aspxerrorpath-in-custom-error-page error page contains phishing due to the URL in the query string, now I don't consider this a problem, but to put an end to the question, I'd like to remove the query string. My web.config entry is this:
Advanced Search Add-In Application [not supported]Hall of Fame - Challenge Series 1 "ASPXErrorPath in URL" Technique in Scanning a .Net Web Application For a long time that I have https://soroush.secproject.com/blog/2012/06/aspxerrorpath-in-url-technique-in-scanning-a-net-web-application/ been using a simple technique whenever I scan a black-box .Net web application. Many of you may already know about this, but I could not find anything in writing and http://www.technologytoolbox.com/blog/jjameson/archive/2012/01/22/building-technologytoolbox-com-part-14.aspx that is why I have decided to write about it and document it. This is the scenario: We have a .Net web application which redirects you to an error 404 error page whenever there is any error. The header and body of the responses from the server are exactly the same when the page is not there or there is an error in the page. And, we are interested to distinguish 404 (page not found error) and 500 (internal error) error codes from each other. Here is an example: 1- 404 error aspxerrorpath The following file is available on the server: http://www.sdl.me/PoCs/validfile.aspx Note: It has an error when you do not provide its input (?input=1) 2- The following file is not available on the server: http://www.sdl.me/PoCs/invalidfile.aspx As there are some errors in both of these links, we are redirected to “http://www.sdl.me/pocs/error.html”. Now, how can we detect which one is really on the server and what is the actual status code? My Solution: It is possible to add a “?aspxerrorpath=/” to both of these URLs to see the actual error. It is not still possible to see the source of error, but it will help us to make the crawling results more accurate. Therefore, we would have: 1- http://www.sdl.me/PoCs/validfile.aspx?aspxerrorpath=/ 2- http://www.sdl.me/PoCs/invalidfile.aspx?aspxerrorpath=/ Automated Scanners: Web application security scanners such as Acunetix or Burp Suite Pro can also use this feature (bug?) for the .Net applications. I have created a Burp Suite Extension as an example that will add “?aspxerrorpath=/” to the “.aspx” files in the scope: /* * File Name: BurpExtender.java * Author: Soroush Dalili - @irsdl * Weblo
Building TechnologyToolbox.com, part 14) Published January 22, 2012 at 10:15 AM by Jeremy Jameson Comments: 2 Categories: Development My System Software is never perfect. Errors will occur in your code. Don't fret, they occur in my code, too. There are nasty little errors in everyone's code -- idly biding their time until they can spring out and aggravate your users. Some errors might be expected, such as HTTP 404 errors when someone mistypes a URL -- or when hackers maliciously try to find vulnerabilities in your application. Other errors might be completely unexpected (e.g. "What do you mean the database transaction log is full? Isn't someone supposed to be monitoring that?"). Many errors are avoidable, but you will inevitably encounter some situations where the best thing your site can do is cough up a decent "mea maxima culpa" message and try to avoid showing users the infamous Yellow Page of Death. Last year, I blogged my recommendations for error handling in SharePoint applications, but what if you aren't using SharePoint? What if you working in plain ol' ASP.NET-land? In that case, you might already have specified a custom error page in the Web.config file and considered it done -- but are you sure that all the bases are covered? Let's examine a few scenarios... Unhandled Exceptions Unless you are writing sample code to demonstrate something as simple as basic calculator functions, you can't possibly expect your code to gracefully handle the multitude of exceptions that might occur at runtime. Therefore, the fewer try/catch blocks you add to your code, the better. Instead you should only catch an exception when you are absolutely sure you can do something useful. If you have catch blocks in your code that do nothing more than log the exception and then re-throw it up the call stack, then...well, I'll just say it, your code blows. Okay, maybe that's a little harsh, but you wouldn't believe how often I've seen this in the past. Even worse, though, are catch blocks that "swallow" the exceptions. If you think there's even a remote chance you might have these in your solution, then you should stop reading this post immediately and instead go do a search in Visual Studio for the word "catch" and scan through the results one-by-one. I'm certainly not saying that you should never use try/catch blocks in your code.