Differences between revisions 15 and 35 (spanning 20 versions)
Revision 15 as of 2019-05-22 00:04:08
Size: 2799
Editor: PaulWise
Comment: link to debtags privacy facet
Revision 35 as of 2020-08-07 00:30:41
Size: 14124
Editor: PaulWise
Comment: add a git-remote-bzr data leak
Deletions are marked like this. Additions are marked like this.
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There are some common categories of phoning home:

 * version checks: DebianPackage:gmic, DebianPackage:basex

These packages either don't fit those categories or do lots of them and more:

## please always include link to either bugreport (preferred) or documentation or source
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 * DebianPackage:basex - phones home to find out the latest version  * syncthing - [[https://blog.harterrt.com/syncthing_data.html|data transfer volume, unique ID submission, version check and lots more]], [[https://data.syncthing.net/|public data report]]
 * cura - [[https://github.com/Ultimaker/Cura/issues/2810|phones home]] in various ways, [[https://salsa.debian.org/3dprinting-team/cura/blob/master/debian/patches/2001-no-default-telemetry.patch|patched out in Debian]].
 * azure-cli - collects "anonymous" telemetry by default
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 * systemd - Uses Google DNS resolvers as internal default, not explicitly documented: See "FallbackDNS" in [[https://manpages.debian.org/stretch/systemd/resolved.conf.5.en.html|systemd-resolved manpage]] === Connectivity ===

Some services need to know when system is "online".
Best practice is to only rely on system services,
optionally coupled with distro-specific public service like DebianPackage:network-manager-config-connectivity-debian .
An antipattern is to hardcode probing of a public service.

## please always include link to either bugreport (preferred) or documentation or source
Packages determining connectivity by probing Apple website and Google DNS resolvers:
 * DebianPackage:python3-aiorpcx - [[https://sources.debian.org/src/aiorpcx/0.18.4-1/aiorpcx/socks.py/?hl=361#L361|source]]

## please always include link to either bugreport (preferred) or documentation or source
Packages determining connectivity by probing Google DNS resolvers:
 * DebianPackage:byobu - [[https://sources.debian.org/src/byobu/5.133-1/usr/bin/wifi-status/?hl=33#L33|source]]
 * DebianPackage:paris-traceroute - [[https://sources.debian.org/src/paris-traceroute/0.93+git20160927-1/traceroute/traceroute.c/?hl=68#L68|source]]
 * DebianPackage:r-cran-curl - [[https://sources.debian.org/src/r-cran-curl/4.3+dfsg-1/R/nslookup.R/?hl=46#L46|source]]

=== DNS ===

Many network protocols need a nameserver.
Best practice is to only rely on user input or system resolver.
An antipattern is to hardcode one or more nameservers,
either exclusively or as internal default.

## please always include link to either bugreport (preferred) or documentation or source
Packages using Cloudflare and Freenom and Google DNS resolvers by default:
 * DebianPackage:libanyevent-perl - [[https://sources.debian.org/src/libanyevent-perl/7.170-2/lib/AnyEvent/DNS.pm/?hl=49#L49|source]]

## please always include link to either bugreport (preferred) or documentation or source
Packages using Cloudflare and Google DNS resolvers by default:
 * DebianPackage:ruby-github-pages-health-check - [[https://sources.debian.org/src/ruby-github-pages-health-check/1.16.1-2/lib/github-pages-health-check/resolver.rb/?hl=13#L13|source]]
 * DebianPackage:systemd - see "FallbackDNS" in [[https://manpages.debian.org/stretch/systemd/resolved.conf.5.en.html|systemd-resolved manpage]], DebianBug:923081, patched in Debian

## please always include link to either bugreport (preferred) or documentation or source
Packages using Cloudflare and Google and Qaud9 DNS resolvers by default:
 * DebianPackage:i2p-router - [[https://sources.debian.org/src/i2p/0.9.45-1/core/java/src/net/i2p/util/DNSOverHTTPS.java/?hl=67#L67|source]]

## please always include link to either bugreport (preferred) or documentation or source
Packages using Google DNS resolvers by default:
 * DebianPackage:anbox - [[https://sources.debian.org/src/anbox/0.0%7Egit20200526-1/src/anbox/container/lxc_container.cpp/?hl=50#L50|source]]
 * DebianPackage:python3-dnslib - [[https://sources.debian.org/src/python-dnslib/0.9.14-1/dnslib/proxy.py/?hl=115#L115|source]]
 * DebianPackage:dirmngr - [[https://sources.debian.org/src/gnupg2/2.2.20-1/doc/dirmngr.texi/?hl=341#L341|source]]
 * DebianPackage:dnss - [[https://sources.debian.org/src/dnss/0.0%7Egit20180721.0.2de63ab0-1/dnss.go/?hl=40#L40|source]]
 * DebianPackage:electrum - [[https://sources.debian.org/src/electrum/3.3.8-0.1/electrum/dnssec.py/?hl=261#L261|source]]
 * DebianPackage:gnunet - [[https://sources.debian.org/src/gnunet/0.13.1-1/src/dns/dns.conf.in/?hl=33#L33|source]]
 * DebianPackage:haci - [[https://sources.debian.org/src/haci/0.98c-2/modules/HaCi/Plugins/CrossRootNetTrace.pm/?hl=39#L39|source]]
 * DebianPackage:libnetty-java - [[https://sources.debian.org/src/netty/1:4.1.48-1/resolver-dns/src/main/java/io/netty/resolver/dns/DefaultDnsServerAddressStreamProvider.java/?hl=96#L96|source]]
 * DebianPackage:ltsp - [[https://sources.debian.org/src/ltsp/20.06-1/ltsp/client/init/45-networking.sh/?hl=29#L29|source]]
 * DebianPackage:movim - [[https://sources.debian.org/src/movim/0.17.1-1/linker.php/?hl=21#L21|source]]
 * DebianPackage:ocproxy - [[https://sources.debian.org/src/ocproxy/1.60-1/src/vpnns.c/?hl=60#L60|source]]
 * DebianPackage:patator - [[https://sources.debian.org/src/patator/0.8-1/patator.py/?hl=4466#L4466|source]]
 * DebianPackage:php-react-socket - [[https://sources.debian.org/src/reactphp-socket/1.4.0-1/src/Connector.php/?hl=64#L64|source]]
 * DebianPackage:posman - [[https://sources.debian.org/src/libpod/1.6.4+dfsg1-4/pkg/resolvconf/resolvconf.go/?hl=24#L24|source]]
 * DebianPackage:python3-tempest - [[https://sources.debian.org/src/tempest/1:24.0.0-4/tempest/config.py/?hl=726#L726|source]]
 * DebianPackage:recon-ng - [[https://sources.debian.org/src/recon-ng/5.1.1-2/recon/core/base.py/?hl=88#L88|source]]
 * DebianPackage:rtl-433 - [[https://sources.debian.org/src/rtl-433/20.02-1/src/mongoose.c/?hl=12007#L12007|source (embedded mongoose webserver)]]
 * DebianPackage:smplayer - [[https://sources.debian.org/src/smplayer/19.10.2%7Eds0-1/webserver/mongoose.c/?hl=11421#L11421|source (embedded mongoose webserver)]]
 * DebianPackage:srsepc - [[https://sources.debian.org/src/srslte/18.06.1-9/srsepc/src/main.cc/?hl=110#L110|source]]
 * DebianPackage:swupdate - [[https://sources.debian.org/src/swupdate/2020.04-1/mongoose/mongoose.c/?hl=11819#L11819|source (embedded mongoose webserver)]]

## please always include link to either bugreport (preferred) or documentation or source
Packages using Google and UncensoredDNS DNS resolvers by default:
 * DebianPackage:parallel - [[https://sources.debian.org/src/parallel/20161222-1.1/src/niceload/?hl=532#L532|source]]

## please always include link to either bugreport (preferred) or documentation or source
Packages using Google and `77.88.39.152` DNS resolvers by default:
 * DebianPackage:libjreen-qt5-1 - [[https://sources.debian.org/src/jreen/1.2.0-2.1/src/sjdns.cpp/?hl=56#L56|source]]

=== ICE ===

WebRTC and SIP and similar protocols need a public-accessible TUN/STUN/TURN service
across public networks.
Best practice is to only rely on local configuration.
an antipattern is to hardcode public STUN services,
either exclusively or as internal default.

## please always include link to either bugreport (preferred) or documentation or source
Packages using Ekiga STUN resolvers by default:
 * DebianPackage:golang-github-ccding-go-stun-dev - [[https://sources.debian.org/src/golang-github-ccding-go-stun/0.1.2-1/stun/const.go/?hl=21#L21|source]]

## please always include link to either bugreport (preferred) or documentation or source
Packages using Ekiga and GNUnet and Mozilla STUN resolvers by default:
 * DebianPackage:gnunet [[https://sources.debian.org/src/gnunet/0.13.1-1/src/nat/nat.conf.in/?hl=39#L39|source]]

## please always include link to either bugreport (preferred) or documentation or source
Packages using Ekiga and SIPgate and Stuntman and more STUN resolvers by default:
 * DebianPackage:psi - [[https://sources.debian.org/src/psi/1.3-6/src/psi_profiles.cpp/?hl=130#L130|source]]
 * DebianPackage:psi-plus - [[https://sources.debian.org/src/psi-plus/1.4.554-4/src/psi_profiles.cpp/?hl=130#L130|source]]

## please always include link to either bugreport (preferred) or documentation or source
Packages using Ekiga and SIPphone and Google and Stuntman and Xten and more STUN resolvers by default:
 * DebianPackage:movim - [[https://sources.debian.org/src/movim/0.17.1-1/app/widgets/Visio/visio.js/?hl=29#L29|source]]

## please always include link to either bugreport (preferred) or documentation or source
Packages using Google STUN resolvers by default:
 * DebianPackage:chromium - [[https://sources.debian.org/src/chromium/83.0.4103.116-3/chrome/browser/resources/media_router/extension/src/webrtc/peer_connection.js/?hl=225#L225|source1 (embedded libwebrtc)]], [[https://sources.debian.org/src/chromium/83.0.4103.116-3/chrome/browser/sharing/webrtc/ice_config_fetcher.cc/?hl=158#L158|source2]]
 * DebianPackage:janus - [[https://sources.debian.org/src/janus/0.10.3-1/debian/patches/2004_avoid_stun_privacy_breach.patch/?hl=13#L13|patched in Debian]]
 * DebianPackage:libqt5webenginecore5 - [[https://sources.debian.org/src/qtwebengine-opensource-src/5.14.2+dfsg1-2/src/3rdparty/chromium/chrome/browser/resources/media_router/extension/src/webrtc/peer_connection.js/?hl=225#L225|source (embedded libwebrtc)]]
 * DebianPackage:thunderbird - [[https://sources.debian.org/src/thunderbird/1:68.10.0-1/comm/chat/protocols/matrix/matrix-sdk/webrtc/call.js/?hl=74#L74|source]]

## please always include link to either bugreport (preferred) or documentation or source
Packages using Google and Stuntman STUN resolvers by default:
 * DebianPackage:supertuxcart - [[https://sources.debian.org/src/supertuxkart/1.1+ds-1/src/config/user_config.hpp/?hl=770#L770|source]]

## please always include link to either bugreport (preferred) or documentation or source
Packages using SIPgate and SIPphone STUN resolvers by default:
 * DebianPackage:twinkle - [[https://sources.debian.org/src/twinkle/1:1.10.1+dfsg-4/data/providers.csv/?hl=5#L5|source]]

## please always include link to either bugreport (preferred) or documentation or source
Packages using SIPphone STUN resolvers by default:
 * DebianPackage:coccinella - [[https://sources.debian.org/src/coccinella/0.96.20-9/components/Phone/IAX/JingleIax.tcl/?hl=151#L151|source1]] [[https://sources.debian.org/src/coccinella/0.96.20-9/lib/Proxy.tcl/?hl=287#L287|source2]]

## please always include link to either bugreport (preferred) or documentation or source
Packages using Stuntman STUN resolvers by default:
 * DebianPackage:libglobus-xio-udt-driver - [[https://sources.debian.org/src/globus-xio-udt-driver/2.2-1/globus_xio_udt_ref.cpp/?hl=271#L271|source]]
 * DebianPackage:libjs-jsxc - [[https://sources.debian.org/src/libjs-jsxc/3.0.0+dfsg3-2/src/jsxc.lib.options.js/?hl=243#L243|source]]
 * DebianPackage:ruby-rails-assets-diaspora-jsxc - [[https://sources.debian.org/src/ruby-rails-assets-diaspora-jsxc/0.1.5+dfsg2%7Edevelop.7-4/app/assets/javascripts/diaspora_jsxc/jsxc.js/?hl=7776#L7776|source (embedded jsxc)]]

## please always include link to either bugreport (preferred) or documentation or source
Packages using Xten STUN resolvers by default:
 * DebianPackage:siproxd - [[https://sources.debian.org/src/siproxd/1:0.8.1-4.1/doc/siproxd.conf.example/?hl=397#L397|source]]
Line 18: Line 148:
## please always include link to either bugreport (preferred) or documentation or source
Line 20: Line 151:
 * hw-probe - includes truncated salted hashes of MAC addresses and serial numbers in hardware probe reports
 * git-remote-bzr (all implementations) - leaks the local git branch name into the "branch nick" field of commits, which could get pushed to a remote repository
Line 29: Line 162:
 * [[https://github.com/jonasdn/nsntrace/|nsntrace]]
 * [[https://github.com/kushaldas/unoon/|unoon]]
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 * [[https://bugs.debian.org/cgi-bin/pkgreport.cgi?users=pabs@debian.org;tag=privacy|usertagged by pabs]]  * [[https://bugs.debian.org/cgi-bin/pkgreport.cgi?users=debian-devel@lists.debian.org;tag=privacy|usertagged under debian-devel]]

Privacy issues in Debian packages

Phone home

There are some common categories of phoning home:

These packages either don't fit those categories or do lots of them and more:

Phone elsewhere

Connectivity

Some services need to know when system is "online". Best practice is to only rely on system services, optionally coupled with distro-specific public service like network-manager-config-connectivity-debian . An antipattern is to hardcode probing of a public service.

Packages determining connectivity by probing Apple website and Google DNS resolvers:

Packages determining connectivity by probing Google DNS resolvers:

DNS

Many network protocols need a nameserver. Best practice is to only rely on user input or system resolver. An antipattern is to hardcode one or more nameservers, either exclusively or as internal default.

Packages using Cloudflare and Freenom and Google DNS resolvers by default:

Packages using Cloudflare and Google DNS resolvers by default:

Packages using Cloudflare and Google and Qaud9 DNS resolvers by default:

Packages using Google DNS resolvers by default:

Packages using Google and UncensoredDNS DNS resolvers by default:

Packages using Google and 77.88.39.152 DNS resolvers by default:

ICE

WebRTC and SIP and similar protocols need a public-accessible TUN/STUN/TURN service across public networks. Best practice is to only rely on local configuration. an antipattern is to hardcode public STUN services, either exclusively or as internal default.

Packages using Ekiga STUN resolvers by default:

Packages using Ekiga and GNUnet and Mozilla STUN resolvers by default:

Packages using Ekiga and SIPgate and Stuntman and more STUN resolvers by default:

Packages using Ekiga and SIPphone and Google and Stuntman and Xten and more STUN resolvers by default:

Packages using Google STUN resolvers by default:

Packages using Google and Stuntman STUN resolvers by default:

Packages using SIPgate and SIPphone STUN resolvers by default:

Packages using SIPphone STUN resolvers by default:

Packages using Stuntman STUN resolvers by default:

Packages using Xten STUN resolvers by default:

Data sharing

  • remmina - shares the clipboard with remote hosts over RDP by default
  • pidgin - shares typing notifications with remote peers by default
  • hw-probe - includes truncated salted hashes of MAC addresses and serial numbers in hardware probe reports
  • git-remote-bzr (all implementations) - leaks the local git branch name into the "branch nick" field of commits, which could get pushed to a remote repository

Data storage

  • web and other servers of various kinds default to logging information about requests over the network from external entities

Detection tools

Reports

Issue categories

  • logging & verbose logging

  • homephoning without user consent
    • cleartext
    • TLS
  • featurebug: when a bug is also a feature
  • privacy defaults
    • optin
    • optout
  • traceability
  • no deletion of config files when uninstalling a package