Browsermob MITM not working with android emulator

[tdecker91]

I'm using the browsermob standalone proxy 2.1.4 in order to intercept traffic from the android emulator. I'm running the android virtual device from the terminal passing in -http-proxy [proxy url:port] to specify the proxy running on my device. I have the ca-certificate-rsa.cer installed on my android virtual device.

When the device tries to make any https requests browsermob gives a General SSLEngine problem. Requests seem to never come back on the device.

This was recently working, however I upgraded the version of the android emulator I was using to 26.1.3 and that's when I noticed this issue.

Below is the error browsermob gives.

[ERROR 2017-08-28T16:14:44,454 org.littleshoot.proxy.impl.ProxyToServerConnection] (LittleProxy-0-ProxyToServerWorker-4) (DISCONNECTED) [id: 0x064f952b, L:0.0.0.0/0.0.0.0:52887 ! R:/172.217.11.74:443]: Caught an exception on ProxyToServerConnection io.netty.handler.codec.DecoderException: javax.net.ssl.SSLHandshakeException: General SSLEngine problem
	at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:442) ~[browsermob-dist-2.1.4.jar:?]
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:248) ~[browsermob-dist-2.1.4.jar:?]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:373) [browsermob-dist-2.1.4.jar:?]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:359) [browsermob-dist-2.1.4.jar:?]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:351) [browsermob-dist-2.1.4.jar:?]
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1334) [browsermob-dist-2.1.4.jar:?]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:373) [browsermob-dist-2.1.4.jar:?]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:359) [browsermob-dist-2.1.4.jar:?]
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:926) [browsermob-dist-2.1.4.jar:?]
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:129) [browsermob-dist-2.1.4.jar:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:651) [browsermob-dist-2.1.4.jar:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:574) [browsermob-dist-2.1.4.jar:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:488) [browsermob-dist-2.1.4.jar:?]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:450) [browsermob-dist-2.1.4.jar:?]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:873) [browsermob-dist-2.1.4.jar:?]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_92]

If I start the proxy using trustAllServers=true then I get the following error.

[WARN  2017-08-28T17:05:57,457 io.netty.util.concurrent.DefaultPromise] (LittleProxy-0-ClientToProxyWorker-6) An exception was thrown by org.littleshoot.proxy.impl.ConnectionFlow$2.operationComplete() net.lightbody.bmp.mitm.exception.MitmException: Error creating SSLEngine for connection to client to impersonate upstream host: null
	at net.lightbody.bmp.mitm.manager.ImpersonatingMitmManager.clientSslEngineFor(ImpersonatingMitmManager.java:227) ~[browsermob-dist-2.1.4.jar:?]
	at org.littleshoot.proxy.impl.ProxyToServerConnection$3.execute(ProxyToServerConnection.java:724) ~[browsermob-dist-2.1.4.jar:?]
	at org.littleshoot.proxy.impl.ConnectionFlow.doProcessCurrentStep(ConnectionFlow.java:140) ~[browsermob-dist-2.1.4.jar:?]
	at org.littleshoot.proxy.impl.ConnectionFlow.processCurrentStep(ConnectionFlow.java:128) ~[browsermob-dist-2.1.4.jar:?]

[InfantAnto]

For me too browser mob proxy not working in emulator. Any solutions for this?

[SagarBShinde]

Has anybody got a solution / root cause of this problem? I am getting a same error while trying to intercept network traffic of an android device using BMP and Drony. The issue is reproduced both on emulator and real device.

[eyal919]

Any solution using -http-proxy? I was able to capture traffic only when I set the proxy manually in the wifi network of the emulator but this is not the way to do automation

[suitux]

Any solution on this?

[MaxwelSant]

Hey guys I'm facing the same problem any suggestions? @jekh