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Implementing CSRF Protection in modifications
With the new version released today for vBulletin 3.6.10 and 3.7.0 RC4, a new protection against Cross Site Request Forgery (CSRF) has been introduced. This new protection might influence the coding in modifications. Scott MacVicar took the time to compile a short explanation on this new protection for the coders on vBulletin.org: Changes for CSRF protection with third party modifications Cross Site Request Forgery (CSRF) involves taking advantage of the stateless nature of HTTP, there are no ways to ensure the exact origin of a request, its also not possible to detect what was actually initiated by a user and what was forced by a third party script. A token was added to the latest version of each of the vBulletin products, with the release of 3.6.10 and 3.7.0 RC4 it is no longer possible to submit a POST request directly without passing in the known token. The addition of a security token for each POST request removes the ability for a remote page to force a user to submit an action. At the moment this protection will only apply to vBulletin files and third party files will need to opt into this protection and add the appropriate hidden field. This was done to preserve backwards compatibility. Adding Protection to your own files To opt your entire file into CSRF protection the following should be added to the top of the file under the define for THIS_SCRIPT. PHP Code:
If this value is set to false then all CSRF protection is removed for the file, this is appropriate for something that intentionally accepts remote POST requests. You should always add this to your file, even if you don't think the script is ever going to receive POST requests. An absence of this defined constant within your files will result in the old style referrer checking being performed. Template Changes The following should be added to all of the forms which POST back to vBulletin or a vBulletin script. This will automatically be filled out with a 40 character hash that is unique to the user. Code:
<input type="hidden" name="securitytoken" value="$bbuserinfo[securitytoken]" /> Exempting Certain Actions It may be appropriate to exempt a particular action from the CSRF protection, in this case you can add the following to the file. PHP Code:
If the skip list needs to be changed at runtime is it available within the registry object, using the init_startup hook the following code would be used to exempt 'example.php?do=action_three'. PHP Code:
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#102
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Lots of things are done via options in vb, that still doesnt mean its a good idea to turn them off. As for should/must - vb will still work without CSRF protection, but it will be insecure, therefore "should" is the correct term. Setting them to false, as you posted, is even worse than not setting the option at all, since that disables the old style protection as well.
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#103
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what do i have to edit, my users are getting these errors on the following page:
profile.php?do=dst |
#104
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i had made my own custom style and the only problem on my board was that when i put a search engine on my header template, it gave my members a message saying something about security token
Code:
<td class="alt1" valign="top"> <form action="$vboptions[bburl]/search.php" method="post"> <input type="hidden" name="do" value="process" /> <input type="hidden" name="showposts" value="0" /> <input type="hidden" name="quicksearch" value="1" /> <input type="hidden" name="s" value="" /> <input type="text" name="query" size="15" onfocus="this.value=''" value="Search..." /> <input type="image" valign="middle" src="$vboptions[bburl]/images/misc/go.gif" style="vertical-align: middle;"/> </form> <a href="$vboptions[bburl]/search.php" accesskey="4" rel="nofollow">Options</a><br> but when i looked at other templates i saw that they had the security token line in the search. Code:
<td class="alt1" valign="top"> <form action="$vboptions[bburl]/search.php" method="post"> <input type="hidden" name="do" value="process" /> <input type="hidden" name="showposts" value="0" /> <input type="hidden" name="quicksearch" value="1" /> <input type="hidden" name="s" value="" /> <input type="hidden" name="securitytoken" value="$bbuserinfo[securitytoken]" /> <input type="text" name="query" size="15" onfocus="this.value=''" value="Search..." /> <input type="image" valign="middle" src="$vboptions[bburl]/images/misc/go.gif" style="vertical-align: middle;"/> </form> <a href="$vboptions[bburl]/search.php" accesskey="4" rel="nofollow">Options</a><br> I hope this helps |
#105
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I had similar problems with the Search functions using CMPS on the front end, yes the infamous Security Issue... but was easily fixed by adding the <input type="hidden" name="securitytoken" value="$bbuserinfo[securitytoken]" /> to the adv_portal_search template right AFTER the <td class="$bgclass"> tag.
Although I understand these are NOT issues directly related to vbulletin core software, I really think that the vb staff should take into consideration that the reason most of us use this software is because of the wide varity of addon's available for it. That being said... perhapts a little more COMPATABILITY with add ons should be more carefully considered and tools to implement these fixes provided. Like when ya do the upgrade a script that will prompt you if you want it to check and upgrade all adv_portal*.* Templates that require it at. I am an avid vb lover and Promote it to everyone I know, I've had my share of issues, but have ALWAYS found the vb staff to be very quick to respond to ANY and ALL issues I've had, so I hope we can stop the Hostile bashing and try to find a happy ground with CONSTRUCTIVE suggestions, Ya get more bees' with Honey folks.... Thank you staff, I appreciate the extra security having just gone through a Hijacked and very screwed up site not long ago. Hopefully these improvements will prevent that from happening in the future. Be Patient, Tom PS: shouldn't it be Vbulletin article REPOSITORY? LOL |
#106
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i don;t understand which templates i have to edit and put above coding
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#107
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Well, I do not know what was the big rush about the CSRF issue. According to Jelsoft people, when I protested that a patch should be issued for those still running vB 3.0.xx since this is a security issue :
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#108
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This fix worked for the "report pm" mod, we were getting the error message. Thank you !
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#109
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I fixed mine a long time ago. You must be using another one then.
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#110
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Quote:
Also how can I do a search from MY "Referrer Whitelist" website? |
#111
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I had this problem with the search button, now its running fine.
Thanks Wayne Luke much appreciated. |
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