PowerPath: Reimpostazione della connessione da parte di un peer quando la vulnerabilità Tenable esegue la scansione della porta 9083

Quando il software di scansione Tenable esegue la scansione della porta 9083, il processo di gestione remota di PowerPath con mTLS abilitato non riesce a raggiungere il numero massimo di connessioni socket e viene registrato il ripristino della connessione da parte di un messaggio peer.

Nella GUI di PPMA, lo stato disconnesso non viene visualizzato fino al ciclo di polling successivo. Quando viene eseguito il ciclo di polling, il server viene infine visualizzato come disconnesso nella GUI (ROSSO).

## Registro eventi dell'applicazione Gestione remota di Windows

07/23/2023 07:05:23 PM  Warning       HOSTNAME 3       EmcPowerPathManagementComponent  EMC PowerPath Warning:  Management Component: Warning: Max socket connection limit reached, incoming connection dropped. Remote host: ip=10.x.x.x, hostname=PPMAHOST.DOMAIN.COM.
07/23/2023 07:05:23 PM  Information   HOSTNAME 2       EmcPowerPathManagementComponent  EMC PowerPath Information:  Management Component: Info: SSPI decryption failed. InitSSLServerSchannel(): Failed to query the client.
07/23/2023 07:05:19 PM  Warning       HOSTNAME 3       EmcPowerPathManagementComponent  EMC PowerPath Warning:  Management Component: Warning: Max socket connection limit reached, incoming connection dropped. Remote host: ip=10.x.x.x, hostname=PPMAHOST.DOMAIN.COM.
07/23/2023 07:05:19 PM  Error         HOSTNAME 4       EmcPowerPathManagementComponent  EMC PowerPath Error:  Management Component: Error: Socket library: send - Connection reset by peer. (err=10054).
07/23/2023 07:05:18 PM  Warning       HOSTNAME 3       EmcPowerPathManagementComponent  EMC PowerPath Warning:  Management Component: Warning: Max socket connection limit reached, incoming connection dropped. Remote host: ip=10.x.x.x, hostname=PPMAHOST.DOMAIN.COM.
07/23/2023 07:05:18 PM  Error         HOSTNAME 4       EmcPowerPathManagementComponent  EMC PowerPath Error:  Management Component: Error: Socket library: send - Connection reset by peer. (err=10054)

## Registro Data Collector PPMA

ERROR 19:16:08.320 [AnonymousIoService-6] c.e.p.d.hosts.impl.HostAgentListener - Internal error occurred in the connection to HOSTNAME.DOMAIN.COM:9083
WARN  19:16:08.321 [AnonymousIoService-6] c.e.p.d.h.impl.HostAgentConnector - java.lang.Exception: Invalid Header Tag       ??U? (Hexdump: 15 03 03 00 1A 00 00 00 00 00 00 00 01 99 FB 16 55 98 19 50 B2 E1 87 35 F2 0D 26 E6 F4 A1 6D)
org.apache.mina.filter.codec.ProtocolDecoderException: java.lang.Exception: Invalid Header Tag       ??U? (Hexdump: 15 03 03 00 1A 00 00 00 00 00 00 00 01 99 FB 16 55 98 19 50 B2 E1 87 35 F2 0D 26 E6 F4 A1 6D)
    at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:165)
    at org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:299)
    at org.apache.mina.common.support.AbstractIoFilterChain.access$1100(AbstractIoFilterChain.java:53)
    at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived(AbstractIoFilterChain.java:648)
    at org.apache.mina.filter.support.SSLHandler.flushScheduledEvents(SSLHandler.java:275)
    at org.apache.mina.filter.SSLFilter.messageReceived(SSLFilter.java:427)
    at org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:299)
    at org.apache.mina.common.support.AbstractIoFilterChain.access$1100(AbstractIoFilterChain.java:53)
    at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived(AbstractIoFilterChain.java:648)
    at org.apache.mina.filter.executor.ExecutorFilter.processEvent(ExecutorFilter.java:220)
    at org.apache.mina.filter.executor.ExecutorFilter$ProcessEventsRunnable.run(ExecutorFilter.java:264)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:51)
    at java.lang.Thread.run(Thread.java:750)
Caused by: java.lang.Exception: Invalid Header Tag       ??U?
    at com.emc.powerpath.datacollector.remote.nio.mina.client.codec.AgentResponseDecoder.getExpectedBytes(AgentResponseDecoder.java:64)
    at com.emc.powerpath.datacollector.remote.nio.mina.client.codec.AgentResponseDecoder.doDecode(AgentResponseDecoder.java:117)
    at org.apache.mina.filter.codec.CumulativeProtocolDecoder.decode(CumulativeProtocolDecoder.java:133)
    at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:158)
    ... 14 common frames omitted
WARN  19:16:08.325 [AnonymousIoService-14] c.e.p.d.h.impl.HostAgentConnector - Connection reset by peer
java.io.IOException: Connection reset by peer
    at sun.nio.ch.FileDispatcherImpl.read0(Native Method)
    at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)
    at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
    at sun.nio.ch.IOUtil.read(IOUtil.java:197)
    at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:378)
    at org.apache.mina.transport.socket.nio.SocketIoProcessor.read(SocketIoProcessor.java:218)
    at org.apache.mina.transport.socket.nio.SocketIoProcessor.process(SocketIoProcessor.java:198)
    at org.apache.mina.transport.socket.nio.SocketIoProcessor.access$400(SocketIoProcessor.java:45)
    at org.apache.mina.transport.socket.nio.SocketIoProcessor$Worker.run(SocketIoProcessor.java:485)
    at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:51)
    at java.lang.Thread.run(Thread.java:750)
WARN  19:16:08.325 [AnonymousIoService-14] c.e.p.d.h.impl.HostAgentConnector - Broken pipe
java.io.IOException: Broken pipe
    at sun.nio.ch.FileDispatcherImpl.write0(Native Method)
    at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47)
    at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93)
    at sun.nio.ch.IOUtil.write(IOUtil.java:65)
    at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:469)
    at org.apache.mina.transport.socket.nio.SocketIoProcessor.doFlush(SocketIoProcessor.java:414)
    at org.apache.mina.transport.socket.nio.SocketIoProcessor.doFlush(SocketIoProcessor.java:332)
    at org.apache.mina.transport.socket.nio.SocketIoProcessor.access$500(SocketIoProcessor.java:45)
    at org.apache.mina.transport.socket.nio.SocketIoProcessor$Worker.run(SocketIoProcessor.java:488)
    at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:51)
    at java.lang.Thread.run(Thread.java:750)
ERROR 19:16:08.325 [AnonymousIoService-14] c.e.p.d.hosts.impl.HostAgentListener - Connection to HOSTNAME.DOMAIN.COM:9083 has been lost

Si tratta di un problema con Gestione remota di PowerPath per Windows 7.2.X con mTLS abilitato che non gestisce correttamente le connessioni Winsock dal server non PPMA.

La correzione sarà presente nella versione futura di PowerPath per Windows, ma al momento non esiste un ETA.

La soluzione alternativa consiste nel riavviare il servizio "Componente EMC PowerPath Remote Management" dai Servizi Windows.