Argon2 Posted June 26, 2016 Share Posted June 26, 2016 (edited) I have a hacker who is sending out spam using the "send to a friend" module. Somehow he is also inserting a spam message in the "send to a friend" mails So there must be a security hole in that module... Example IIS log: 2016-06-26 10:26:21 W3SVC26 <MY.WEBSERVER.IP.HERE> POST /modules/sendtoafriend/sendtoafriend_ajax.php rand=1466666329816 80 - 112.198.79.231 Mozilla/4.0+(compatible;+MSIE+9.0;+Windows+NT+6.1) http://www.websiteurl.com/modules/sendtoafriend/sendtoafriend_ajax.php?rand=1466666329816 200 0 0 513 1179 1812 What do I do? I already blocked his IP address on the firewall, but that doesn't solve the security issue in the send to a friend module... Thanks. Kris. Update:Renaming the php files (to .bak) of the "send to a friend" module has effectively stopped the spam being sent. Disabling and uninstalling that module using the prestashop backend was not sufficient!!! The module files remain on the webserver even after uninstalling the module in the backend. So I can now confirm with certainty that the "send to a friend" module has some kind of security issue that enables the sending of spam. Edited June 26, 2016 by Argon2 (see edit history) Link to comment Share on other sites More sharing options...
Argon2 Posted June 28, 2016 Author Share Posted June 28, 2016 Do you know of an alternative "send to a friend" module for prestashop? I did a search in the modules section on the prestashop website, but couldn't find an alternative. My client would like to keep offering this feature on his webshop, but of course he doesn't want to be sending out spam Thank you. Kind regards. Kris Link to comment Share on other sites More sharing options...
BadMath Posted June 28, 2016 Share Posted June 28, 2016 As another victim of this exploit, I can say the lack of a CAPTCHA is an inexcusable omission, but is not even the primary issue here. The fact that a faulty module that ships with PrestaShop can be disabled and even uninstalled, yet the code is still directly executable from the modules directory is a major security concern and should be treated as such. In the meantime, all Prestashop users should remove or rename the "modules/sendtoafriend" directory if the module has ever been active. Link to comment Share on other sites More sharing options...
bellini13 Posted June 30, 2016 Share Posted June 30, 2016 uninstalling the module does not remove the modules files from the server. this is an easy solution, delete the module Link to comment Share on other sites More sharing options...
Argon2 Posted June 30, 2016 Author Share Posted June 30, 2016 Great tip, I hadn't thought of that yet :-p 1 Link to comment Share on other sites More sharing options...
ibser Posted July 13, 2016 Share Posted July 13, 2016 Hi Of course where will be found security holes in a large system like prestashop , BUT is where no where a security bulletin / mail list with warnings about security flaws I can't sit and read all new forum post just to keep my customers prestashop clean from security holes 2 Link to comment Share on other sites More sharing options...
selectshop.at Posted July 13, 2016 Share Posted July 13, 2016 As mdekker already told: If you see on your back-office on modules list updates, you should consider to update them ! Prestashop only announces on the forum patches for severe security flaws, but not minor one without priorities for modules in use for ex. Link to comment Share on other sites More sharing options...
ibser Posted July 13, 2016 Share Posted July 13, 2016 (edited) Yes i just checked a 1.6 installation and your are right on module list update where was a update for the module (installed v1.8) updated to v 1.9 , no change log or note on the update for what the update is doing , is 1.9 free of the hole ? But as you sure know not all users of Prestashop is looking for modules update, and are not very technical and do not get the modules updated , many of when hire a developer to do things like install modules I am one of whose developers/freelancer now i would be very nice if i could monitor a list with severe and minor security flaws , not just as a service for the customer but allso in the light of what if we get holes closed on as many prestashop installations as possibly in a very short time , the more hackers are looking else where for where dirty work I know Prestashop is a open source and i am will happy contribute to creation of a list like what If where is no interest in such a list on prestashop.com i would like to here from other what wants a list only with news about severe and minor security flaws out of prestashop community i will donate a server for the purpose and allso a spare time developer Edited July 13, 2016 by ibser (see edit history) Link to comment Share on other sites More sharing options...
selectshop.at Posted July 13, 2016 Share Posted July 13, 2016 Sorry, but there are official sites (like secunia.com) which handles this. I don't think there is a need to schock/startle/overtax others with such "list". Besides as also you said: "I can't sit and read all new forum post just to keep my customers prestashop clean from security holes". Don't hink that if it is not on official site of Prestashop nobody will care or take a look into that on non-official sites.... BUT on your own site, you can make public what you want for YOUR CUSTOMERS.... There are several developers (like me) using their own sites for tips and tricks and informing about Prestashop development. You can for ex. start one for your customers, if you feel that they are more confident on your services... Link to comment Share on other sites More sharing options...
ibser Posted July 13, 2016 Share Posted July 13, 2016 I think we misunderstand each other , i was asking for this <Sorry, but there are official sites which handles this > BTW your attitude is not very friendly , maybe its just me reading you wrong , but i settle my case here on this forum Link to comment Share on other sites More sharing options...
selectshop.at Posted July 13, 2016 Share Posted July 13, 2016 @ ibser - We should make it short: there must be a reason why Prestashop does not put a priority to this. I tried to explain the reasons for you, from my point of view. Nevertheless if you feel that there is a lack of information on this for the customers YOU are supporting, you are free to inform what you want on your own page. This is what I'm doing and other developers too.... It was only and advice how YOU can manage this point better, not a critic and also not to be "unfriendly"... Forums are there for to discuss several point of views, or not ? To learn from others ? As you know, it is a task of each oneself using software (paid or OS) to keep it actual for to avoid possible security flaws... Neither Microsoft, or other big software will inform you about security problems. They simply send you info, that there is a upgrade available. This is also what Prestashop is doing.... Link to comment Share on other sites More sharing options...
dpb-andorra Posted August 4, 2016 Share Posted August 4, 2016 Hi. I had the same problem with the module sendtoafriend. First I was advised that there was a module being used to spam. Locate the module sendtoafriend and eliminated. Yet the administration took too long to load and did not understand why. In the logs still calls are appearing: POST /modules/sendtoafriend/sendtoafriend_ajax.php?rand=1468311826965 Review the directories and were still being remains of sendtoafriend and eliminated. Even in the log are still appearing calls me to: POST /modules/sendtoafriend/sendtoafriend_ajax.php?rand=1468311826965 Anyone know how to stop this nightmare. Thank you. Link to comment Share on other sites More sharing options...
ibser Posted August 4, 2016 Share Posted August 4, 2016 Hi dpb-andorra When uninstall the module from the admin backend it is still located on the disk ' My solution was to uninstall from admin backend and ftp or what you use and delete the module total from the system (dir and files) Link to comment Share on other sites More sharing options...
surferboy Posted August 4, 2016 Share Posted August 4, 2016 Secure the module with a captcha: https://github.com/firstred/mpsendtoafriend/releases No captcha response = no processing, so that saves your server some processing power. You can also protect the product reviews module if you like: https://github.com/firstred/mpproductcomments/releases Hi - I am kind of a bull in a china shop when it comes to tech administration. I downloaded the firs zip file you had in this link, under 1.1.2: https://github.com/firstred/mpsendtoafriend/releases Then I tried to add the module to my prestashop installation acp. Got an error. I tried again, after reenabling the send a link module. This time it added the module. Then I installed the module. Now there are two modules - see the attached prinstcreen. Do I need to uninstall the old one? Thanks, Brian Link to comment Share on other sites More sharing options...
surferboy Posted August 4, 2016 Share Posted August 4, 2016 update - there is no reCAPTCHA field appearing on the form for the send a link to a friend. any ideas? Link to comment Share on other sites More sharing options...
creasolstore Posted September 8, 2016 Share Posted September 8, 2016 Altough captch is really needed, I've posted a solution that uses fail2ban to put IP address that try to send many messages in blacklist (iptables firewall). Click on https://www.prestashop.com/forums/topic/540520-send-to-friend-module-gets-spam/?do=findComment&comment=2399413 Link to comment Share on other sites More sharing options...
PrestaHeroes USA Posted May 13, 2017 Share Posted May 13, 2017 we have issues with newsletter module....this we could tell from returned emails...still have not had time to sort it out...but stopped after disabling newsletter. Link to comment Share on other sites More sharing options...
Bolonia Posted May 14, 2017 Share Posted May 14, 2017 I have a hacker who is sending out spam using the "send to a friend" module. Somehow he is also inserting a spam message in the "send to a friend" mails So there must be a security hole in that module... Example IIS log: 2016-06-26 10:26:21 W3SVC26 <MY.WEBSERVER.IP.HERE> POST /modules/sendtoafriend/sendtoafriend_ajax.php rand=1466666329816 80 - 112.198.79.231 Mozilla/4.0+(compatible;+MSIE+9.0;+Windows+NT+6.1) http://www.websiteurl.com/modules/sendtoafriend/sendtoafriend_ajax.php?rand=1466666329816 200 0 0 513 1179 1812 What do I do? I already blocked his IP address on the firewall, but that doesn't solve the security issue in the send to a friend module... Thanks. Kris. Update: Renaming the php files (to .bak) of the "send to a friend" module has effectively stopped the spam being sent. Disabling and uninstalling that module using the prestashop backend was not sufficient!!! The module files remain on the webserver even after uninstalling the module in the backend. So I can now confirm with certainty that the "send to a friend" module has some kind of security issue that enables the sending of spam. Hi where i can see this logs? Thx alot! Jon Link to comment Share on other sites More sharing options...
selectshop.at Posted May 14, 2017 Share Posted May 14, 2017 Hi where i can see this logs? Thx alot! Jon As written before: IIS logs - so server logs.In this case it is a Windows server (IIS) but also on Linux servers you can read logs, if you have access to them. Ask your hosting provider, where and if you can access the logs. Link to comment Share on other sites More sharing options...
genweb Posted May 15, 2017 Share Posted May 15, 2017 Does anyone knows if this is fixed in 1.7? I cannot see the module there. Link to comment Share on other sites More sharing options...
doekia Posted May 15, 2017 Share Posted May 15, 2017 Does anyone knows if this is fixed in 1.7? I cannot see the module there. Hence it is fixed. The backdoor is not related to the core but to the module it-self, no module, no backdoor 1 Link to comment Share on other sites More sharing options...
genweb Posted May 15, 2017 Share Posted May 15, 2017 Hence it is fixed. The backdoor is not related to the core but to the module it-self, no module, no backdoor Good to hear, thanks! Link to comment Share on other sites More sharing options...
doekia Posted May 19, 2017 Share Posted May 19, 2017 (edited) Purge your mail server queue entirely, analyse your logs, find the true channel they use to spam, identify the backdoors, identify the breach used to implement the new set of backdoor, close both and perform a full code review for yet undiscovered backdoor. Change your superadmin access (most your access credential could have been leaked btw) Time consuming, boring, but no other choice. Worst, if you don't do that you will probably migrate on update the code they use to sneak inside your system. PS: The module is sendtoafriend, not newsletter !! Edited May 19, 2017 by doekia (see edit history) Link to comment Share on other sites More sharing options...
doekia Posted May 20, 2017 Share Posted May 20, 2017 assuming they use the regular contact form, u need to implement some captcha or the like. If captcha is override based you should be immediatly set. If it is a submit button hijack, you need to implement the correct RewriteRule to prevent sending to the "legacy" controller Link to comment Share on other sites More sharing options...
doekia Posted May 20, 2017 Share Posted May 20, 2017 You can probable use this http://area51.enter-solutions.com/snippets/74 1 Link to comment Share on other sites More sharing options...
endriu107 Posted May 21, 2017 Share Posted May 21, 2017 If you have problem with spam check this topic: https://www.prestashop.com/forums/topic/610111-spam-via-my-ecommerce-shop/ Link to comment Share on other sites More sharing options...
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