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| | The source of the documentation may be found [https://secure-proxy-howto.anonymous-proxy-servers.net/download/JonDoFoxDokumentation.tex here], a compiled .pdf may be found [https://secure-proxy-howto.anonymous-proxy-servers.net/download/JonDoFoxDokumentation.pdf here] (currently only an old german version). | | The source of the documentation may be found [https://secure-proxy-howto.anonymous-proxy-servers.net/download/JonDoFoxDokumentation.tex here], a compiled .pdf may be found [https://secure-proxy-howto.anonymous-proxy-servers.net/download/JonDoFoxDokumentation.pdf here] (currently only an old german version). |
| − |
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| − | ==JonDoFox' Defenses==
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| − | * HTTP-Header
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| − | ** spoofing of User Agent (general.appname.override, general.appversion.override, general.buildID.override, general.oscpu.override, general.platform.override, general.productSub.override, general.useragent.override, general.useragent.vendor, general.useragent.vendorSub)
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| − | ** spoofing of Referer
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| − | ** further header spoofing (intl.accept_languages, intl.charset.default, network.http.accept.default)
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| − |
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| − | * Further preferences
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| − | ** browser.pagethumbnails.capturing_disabled set to true
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| − | ** browser.search.suggest.enabled set to false
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| − | ** browser.zoom.siteSpecific set to false
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| − | ** plugin.expose_full_path set to false
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| − | ** browser.send_pings set to false
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| − | ** dom.network.enabled set to false
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| − | ** dom.storage.enabled set to false
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| − | ** geo.enabled set to false
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| − | ** network.prefetch-next set to false
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| − | ** network.proxy.socks_remote_dns set to true
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| − | ** network.http.proxy.keep-alive set to false
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| − | ** view_source.editor.external set to false
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| − | ** security.remember_cert_checkbox_default_setting set to false
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| − | ** security.default_personal_cert set to "Ask Every Time"
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| − | ** privacy.sanitize.sanitizeOnShutdown set to true
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| − | ** privacy.clearOnShutdown.history set to false
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| − | ** privacy.clearOnShutdown.offlineApps set to true
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| − | ** network.cookie.cookieBehavior set to 2
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| − | ** network.protocol-handler.warn-external.news set to true
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| − | ** network.protocol-handler.warn-external.snews set to true
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| − | ** network.protocol-handler.warn-external.nntp set to true
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| − | ** network.protocol-handler.warn-external.file set to true
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| − | ** network.protocol-handler.warn-external.mailto set to true
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| − | ** network.protocol-handler.warn-external-default set to true
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| − | ** browser.history_expire_days set to 0
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| − | ** network.http.accept-encoding set to "gzip,deflate" (FF4 and higher)
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| − | ** privacy.donottrackheader.enabled set to true (FF4 and higher)
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| − | ** extensions.getAddons.cache.enabled set to false (FF4 and higher)
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| − | ** dom.indexedDB.enabled set to false (FF4 and higher)
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| − | ** webgl.disabled set to true (FF4 and higher)
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| − | ** browser.display.use_document_fonts set to 0
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| − | ** browser.sessionhistory.max_entries set to 2 (FF4 and higher)
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| − | ** browser.safebrowsing.* => set relevant safebrowsing peferences to values that do neither leak the deployed language nor the FF version to Google (see the preferences.js in the JonDoFox.xpi for the currently used values)
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| − | ** security.enable_tls_session_tickets set to false to avoid fingerprinting via TLS Session Resumption
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| − | ** dom.battery.enabled set to false to avoid leaking some fingerprintable information in some corner cases
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| − | ** dom.performance_enable set to false (FF7 and higher) in order to avoid fingerprinting a user deploying detailed page load statistics (although this threat is somewhat mitigated by having an anonymization service between the user and the attacker)
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| − | ** network.http.spdy.enabled set to false
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| − | ** dom.network.enabled set to false
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| − | ** extensions.blocklist.enabled set to false
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| − | ** media.peerconnection.enabled set to false
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| − |
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| − | *Cookies, DOM storage and IndexedDB
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| − | ** cookies currently blocked per default via Cookie Monster {planned an own user friendly tabspecific CM}
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| − | ** DOM storage currently disabled per preference {planned to expand the CM to the handling of DOM storage}
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| − | ** The IndexedDB feature is disabled per preference at the moment {planned to expand the CM to the handling of the IndexedDB feature}
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| − |
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| − | *Cache
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| − | ** modified SafeCache code {planned to expand the tabspecific design mentioned above to handle cache cases as well}
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| − |
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| − | *HTTP-Authentication
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| − | ** included first defense against HTTP-Auth tracking (see: [http://jeremiahgrossman.blogspot.com/2007/04/tracking-users-without-cookies.html http://jeremiahgrossman.blogspot.com/2007/04/tracking-users-without-cookies.html]) {planned to use the same partitioning methods as SafeCache and the Referer-spoofing in the mid-run; tabspecific separation in the long run}
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| − |
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| − | *Browser History
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| − | ** currently disabled per preference (FF3.x)
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| − |
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| − | *Websockets
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| − | ** currently disabled per preference until we investigated whether they pose an additional threat (and if so, how to mitigate that)
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| − |
| |
| − | *MIME types
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| − | ** in almost all cases we avoid that an external application is launched automatically to open a specific file
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| − | ** we show a warning dialog (hooking us into the external app or NoScript dialog (the latter if the user has a pdf plugin activated))
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| − | ** we prohibit that the user may set the "Always open with this application" option {there needs still a little bit done in this regard to make that bulletproof}
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| − |
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| − | *Search queries
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| − | ** delete the search queries after user launched search request
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| − | ** after half an hour will the search history be deleted
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| − | ** we disabled search suggestions per preference
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| − |
| |
| − | *SSL based attacks
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| − | ** included a modified version of Certificate Patrol (CP) {planned to enhance that a bit further (a kind of get-me-out-of-here button...)}
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| − | ** disabled attacks using client certificates per preference
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| − | ** included EFF's distributed SSL Observatory feature to be able to secure the SSL infrastructure in the future
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| − | ** disabled SSL 3.0 per preference
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| − |
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| − | *Media queries
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| − | ** currently no way to cope with that as that needs probably a patched Firefox
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| − |
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| − | *@font-face
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| − | ** NoScript
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| − | ** {we plan to implement a nsIContentPolicy that would take care of it e.g. if NoScript is disabled}
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| − |
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| − | *JS based attacks
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| − | ** NoScript in profile included
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| − | ** tracking users via window.name is disabled
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| − | ** {planned to spoof the browser locale reliably}
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| − |
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| − | *Plugins
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| − | ** NoScript in profile included
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| − | ** all plugins are disabled in JonDoFox but Flash by default; the latter get disabled additionally by setting a hidden preference, extensions.jondofox.disableAllPluginsJonDoMode, to "true"
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| − |
| |
| − | *AdBlock based attack
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| − | **{planned to implement one ad blocking list shipped with JonDoFox to minimize the risk that users get profiled by using different ad filter lists}
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If your svn client complains about our self-signed certificate you may compare the SHA1 fingerprints to make sure you download our sources. The SHA1-fingerprint of our certificate is:
