On Tue, Jun 21, 2016 at 2:37 PM, Manuri Amaya Perera <manu...@wso2.com> wrote:
> Hi all, > > Please find the comments inline. > > On Tue, Jun 21, 2016 at 9:48 AM, Anupama Pathirage <anup...@wso2.com> > wrote: > >> Hi, >> >> When we build the product DSS [1] with the latest Kernel Release (4.4.6), >> we have observed following issues in "Try it" page. Appreciate any clue on >> this to get them resolved. >> >> *1) *In Https mode, Try it requests gives following error on send [2][3]. >> >> WARN {org.owasp.csrfguard.log.JavaLogger} - potential cross-site request >> forgery (CSRF) attack thwarted (user:<anonymous>, ip:10.100.7.118, >> method:POST, uri:/carbon/admin/jsp/WSRequestXSSproxy_ajaxprocessor.jsp, >> error:required token is missing from the request) >> >> Private proxy protocol will be attempted as cross-domain browser >> restrictions might be enforced for this endpoint. >> >> <TryitClient xmlns="http://tryit.carbon.wso2.org"> >> <Reason>Error connecting to the Tryit ajax proxy</Reason> >> </TryitClient> >> >> *2)* Try it page does not load properly in Chrome. It loads correctly in >> Firefox. It gives the following error on chrome [4]. >> >> Refused to execute script from ' >> https://localhost:9443/services/echo?wsdl2form&resource=editarea/edit_area_full.js' >> <https://www.google.com/url?q=https%3A%2F%2Flocalhost%3A9443%2Fservices%2Fecho%3Fwsdl2form%26resource%3Deditarea%2Fedit_area_full.js%27&sa=D&sntz=1&usg=AFQjCNGL0XVRd6yRXPkx_0JirC6kv1p-4A> >> because its MIME type ('text/html') is not executable, and strict MIME type >> checking is enabled. >> Uncaught ReferenceError: editAreaLoader is not defined. >> > > When downgrading DSS's kernel version to 4.4.5 this issue doesn't occur. > When comparing the response to the request > > http://10.100.7.67:9783/services/echo?wsdl2form&resource=editarea/edit_area_full.js > in DSS with kernel 4.4.5 and kernel 4.4.6 it seems some additional > headers are present in the latter. They were, > > 1. X-Content-Type-Options: > nosniff > 2. X-Frame-Options: > DENY > 3. X-XSS-Protection: > 1; mode=block > > Here the X-Content-Type-Options header is to make sure the browser does > not try to detect a different Content-Type than what is actually sent[1]. > What is the Content-Type (or rather Accept) header sent by the browser? > Here the content type of the response is > text/html > . > Therefore this error occurs for edit_area_full.js file. And it seems > firefox(at least the version we tested with) is not supporting this header > but chrome does[2], which should be the reason why we don't get this error > in firefox. > > Anyway we built with kernel 4.4.6 and checked this in BPS and it seems > those additional headers are not present in the response. > If the configurations and the tryit version are the same, then both these products should behave in a similar manner. > > > [1] https://github.com/wso2/product-dss/ >> [2] https://drive.google.com/open?id=0B16LG8jdYeP8ZEpyV1F5cmRsTDA >> [3] https://drive.google.com/open?id=0B16LG8jdYeP8LWF2elVTbzFQOWs >> [4] https://drive.google.com/open?id=0B16LG8jdYeP8VmtlWXEtdmRJUjQ >> >> Regards, >> -- >> Anupama Pathirage >> Associate Technical Lead >> WSO2, Inc. http://wso2.com/ >> Email: anup...@wso2.com >> Mobile:+94 71 8273 979 >> >> >> > > [1] https://www.owasp.org/index.php/REST_Security_Cheat_Sheet > [2] > http://stackoverflow.com/questions/18337630/what-is-x-content-type-options-nosniff > > Thanks, > Manuri > > -- > > *Manuri Amaya Perera* > > *Software Engineer* > > *WSO2 Inc.* > > *Blog: http://manuriamayaperera.blogspot.com > <http://manuriamayaperera.blogspot.com>* > -- *Kasun Gajasinghe*Associate Technical Lead, WSO2 Inc. email: kasung AT spamfree wso2.com linked-in: http://lk.linkedin.com/in/gajasinghe blog: http://kasunbg.org
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