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This is an automatically generated e-mail. To reply, visit:
<a href="https://git.reviewboard.kde.org/r/124140/">https://git.reviewboard.kde.org/r/124140/</a>
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<p style="margin-top: 0;">On August 25th, 2015, 9:09 a.m. PDT, <b>Albert Vaca Cintora</b> wrote:</p>
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<a href="https://git.reviewboard.kde.org/r/124140/diff/6/?file=398262#file398262line567" style="color: black; font-weight: bold; text-decoration: underline;">src/org/kde/kdeconnect/Device.java</a>
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(Diff revision 6)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> public void onPackageReceived(NetworkPackage np) {</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="o">(</span><span class="n">np</span><span class="o">.</span><span class="na">getType</span><span class="o">().</span><span class="na">equals</span><span class="o">(</span><span class="n">NetworkPackage</span><span class="o">.</span><span class="na">PACKAGE_TYPE_PAIR</span><span class="o">))</span> <span class="o">{</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="o">(</span><span class="n">np</span><span class="o">.</span><span class="na">getType</span><span class="o">().</span><span class="na">equals</span><span class="o">(</span><span class="n">NetworkPackage</span><span class="o">.</span><span class="na">PACKAGE_TYPE_PAIR</span><span class="o">))</span> <span class="o">{</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Here if you receive an unencrypted package, it won't enter this "if" statement and you won't try to decrypt it, but the package will get passed to the Device anyway by this function. This means that your code accepts unencrypted packages, and that's a security problem.</pre>
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<p>On August 25th, 2015, 9:35 a.m. PDT, <b>Vineet Garg</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">It is the job of lanlink to decrypt the package if it is received encrypted. Device never received encrypted package, it always receive unencypted packaged. After this it checked by device in these conditions. If if it is pair package then handled by this condition, else passed to plugins only if device is paired. Else unpair package is sent. I am not able to see any security problem here. Can you elaborate further ?</p></pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">When Device.packageReceived gets called, we no longer have knowledge about if the package was originally encrypted or not, so Device can't know if it should trust the package or not. We want to make Device able to trust some unencrypted packages, but not all, and that's not possible right now. Can you add a function that is receivedUnpairedPackage or something like that to Device?</pre>
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<p>- Albert</p>
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<p>On August 25th, 2015, 8:17 a.m. PDT, Vineet Garg wrote:</p>
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<div>Review request for kdeconnect and Albert Vaca Cintora.</div>
<div>By Vineet Garg.</div>
<p style="color: grey;"><i>Updated Aug. 25, 2015, 8:17 a.m.</i></p>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
kdeconnect-android
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><ul style="padding: 0;text-rendering: inherit;margin: 0 0 0 1em;line-height: inherit;white-space: normal;">
<li style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">Since MINA was tying hands in adding SSL, ported over Netty which has a good, clean and easy interface and a larger user and developer base.</li>
<li style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">Added support to setup links on SSL</li>
<li style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">Links automatically removed if wrong certificate is sent</li>
<li style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">Shows keys based on hash of certificate to check right certificates are received</li>
<li style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">Added a preference to use SSL, as it is experienced to cause high CPU usage on devices.</li>
<li style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">Corrected unit tests, LanLinkProvider is removed as it is nearly impossible to write it with current design. Will find a way</li>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">Tesed on some device with where both supports SSL, also with PC where ssl is not supported, working fine. Need a little bit more testing with more devices.</p></pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>build.gradle <span style="color: grey">(b36cf14)</span></li>
<li>libs/netty-handler.jar <span style="color: grey">(PRE-CREATION)</span></li>
<li>proguard-rules.pro <span style="color: grey">(ac9cda5)</span></li>
<li>res/values/strings.xml <span style="color: grey">(c128342)</span></li>
<li>src/org/kde/kdeconnect/Backends/BaseLink.java <span style="color: grey">(53407f0)</span></li>
<li>src/org/kde/kdeconnect/Backends/BasePairingHandler.java <span style="color: grey">(PRE-CREATION)</span></li>
<li>src/org/kde/kdeconnect/Backends/LanBackend/LanLink.java <span style="color: grey">(c070126)</span></li>
<li>src/org/kde/kdeconnect/Backends/LanBackend/LanLinkProvider.java <span style="color: grey">(0cb1ee3)</span></li>
<li>src/org/kde/kdeconnect/Backends/LanBackend/LanPairingHandler.java <span style="color: grey">(PRE-CREATION)</span></li>
<li>src/org/kde/kdeconnect/Backends/LoopbackBackend/LoopbackLink.java <span style="color: grey">(add92f8)</span></li>
<li>src/org/kde/kdeconnect/Backends/LoopbackBackend/LoopbackLinkProvider.java <span style="color: grey">(bd9c41b)</span></li>
<li>src/org/kde/kdeconnect/Backends/LoopbackBackend/LoopbackPairingHandler.java <span style="color: grey">(PRE-CREATION)</span></li>
<li>src/org/kde/kdeconnect/BackgroundService.java <span style="color: grey">(37baddb)</span></li>
<li>src/org/kde/kdeconnect/Device.java <span style="color: grey">(a0b9392)</span></li>
<li>src/org/kde/kdeconnect/Helpers/SecurityHelpers/RsaHelper.java <span style="color: grey">(PRE-CREATION)</span></li>
<li>src/org/kde/kdeconnect/Helpers/SecurityHelpers/SslHelper.java <span style="color: grey">(PRE-CREATION)</span></li>
<li>src/org/kde/kdeconnect/NetworkPackage.java <span style="color: grey">(a4ef7d0)</span></li>
<li>src/org/kde/kdeconnect/UserInterface/DeviceActivity.java <span style="color: grey">(fe3c470)</span></li>
<li>src/org/kde/kdeconnect/UserInterface/PairActivity.java <span style="color: grey">(7a45751)</span></li>
<li>tests/org/kde/kdeconnect/DeviceTest.java <span style="color: grey">(5d3383d)</span></li>
<li>tests/org/kde/kdeconnect/LanLinkProviderTest.java <span style="color: grey">(0c1eb58)</span></li>
<li>tests/org/kde/kdeconnect/LanLinkTest.java <span style="color: grey">(d3d94c9)</span></li>
<li>tests/org/kde/kdeconnect/NetworkPackageTest.java <span style="color: grey">(a21114e)</span></li>
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<p><a href="https://git.reviewboard.kde.org/r/124140/diff/" style="margin-left: 3em;">View Diff</a></p>
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