[AsteriskBrasil] Intruso no Asterisk
Felipe R. Pasa
feliperp3 em gmail.com
Segunda Novembro 23 22:03:50 BRST 2009
Alexandre,
no seu sip.conf, voce pode habilitar o parametro allowguest=yes e na
conta do [guest] coloca um contexto que alcance somente os seus ramais
internos,ou algum que nao exista, neste caso o seu invasor no máximo
liga para o seu ramal e inclusive voce pode até trocar umas
palavrinhas com o intruso! :)
At.!
2009/11/23 Alexandre Ricardo Souza Silva <alexandre em componentizar.com.br>:
> Salve Galera!
>
>
> Preciso de help de todos, estava verificando o log do meu
> asterisk e notei que tenho uns 48 registro assim ( Sip/113.105.152.56
> asterisk asterisk) , pelo que verifiquei na Net isso é tentativa de intruso,
> só que esse ip tentou ligar para alguns lugares , mas sem sucesso pelo que
> vi , todas as tentativas não passou de 16 segundos, essas 48 tentativas sao
> desde mes 08 , hoje por exemplo não tive este ataque, eles estao tentando a
> cada 4 dias...
>
> Qual o patch q tenho que aplicar no * para manter mais
> seguro?
>
> ***Log
> Nov 14 01:22:19] VERBOSE[21171] logger.c: -- Executing
> [011441616604001 em from-sip-external:1] NoOp("SIP/113.105.152.56-b2e04818",
> "Received incoming SIP connection from unknown peer to 011441616604001") in
> new stack
> [Nov 14 01:22:19] VERBOSE[21171] logger.c: -- Executing
> [011441616604001 em from-sip-external:2] Set("SIP/113.105.152.56-b2e04818",
> "DID=011441616604001") in new stack
> [Nov 14 01:22:19] VERBOSE[21171] logger.c: -- Executing
> [011441616604001 em from-sip-external:3] Goto("SIP/113.105.152.56-b2e04818",
> "s|1") in new stack
> [Nov 14 01:22:19] VERBOSE[21171] logger.c: -- Executing
> [s em from-sip-external:1] GotoIf("SIP/113.105.152.56-b2e04818",
> "0?from-trunk|011441616604001|1") in new stack
> [Nov 14 01:22:19] VERBOSE[21171] logger.c: -- Executing
> [s em from-sip-external:2] Set("SIP/113.105.152.56-b2e04818",
> "TIMEOUT(absolute)=15") in new stack
> [Nov 14 01:22:19] VERBOSE[21171] logger.c: -- Executing
> [s em from-sip-external:3] Answer("SIP/113.105.152.56-b2e04818", "") in new
> stack
> [Nov 14 01:22:19] VERBOSE[21171] logger.c: -- Executing
> [s em from-sip-external:4] Wait("SIP/113.105.152.56-b2e04818", "2") in new
> stack
> [Nov 14 01:22:21] VERBOSE[21170] logger.c: -- Executing
> [s em from-sip-external:5] Playback("SIP/113.105.152.56-b2e08a38",
> "ss-noservice") in new stack
> [Nov 14 01:22:21] VERBOSE[21171] logger.c: -- Executing
> [s em from-sip-external:5] Playback("SIP/113.105.152.56-b2e04818",
> "ss-noservice") in new stack
> [Nov 14 01:22:21] VERBOSE[21170] logger.c: --
> <SIP/113.105.152.56-b2e08a38> Playing 'ss-noservice' (language 'en')
> [Nov 14 01:22:21] VERBOSE[21171] logger.c: --
> <SIP/113.105.152.56-b2e04818> Playing 'ss-noservice' (language 'en')
> [Nov 14 01:22:28] VERBOSE[21170] logger.c: -- Executing
> [s em from-sip-external:6] PlayTones("SIP/113.105.152.56-b2e08a38",
> "congestion") in new stack
> [Nov 14 01:22:28] VERBOSE[21170] logger.c: -- Executing
> [s em from-sip-external:7] Congestion("SIP/113.105.152.56-b2e08a38", "5") in
> new stack
> [Nov 14 01:22:28] VERBOSE[21171] logger.c: -- Executing
> [s em from-sip-external:6] PlayTones("SIP/113.105.152.56-b2e04818",
> "congestion") in new stack
> [Nov 14 01:22:28] VERBOSE[21171] logger.c: -- Executing
> [s em from-sip-external:7] Congestion("SIP/113.105.152.56-b2e04818", "5") in
> new stack
> [Nov 14 01:22:34] VERBOSE[21170] logger.c: == Spawn extension
> (from-sip-external, s, 7) exited non-zero on 'SIP/113.105.152.56-b2e08a38'
> [Nov 14 01:22:34] VERBOSE[21170] logger.c: -- Executing
> [T em from-sip-external:1] NoOp("SIP/113.105.152.56-b2e08a38", "Received
> incoming SIP connection from unknown peer to T") in new stack
> [Nov 14 01:22:34] VERBOSE[21170] logger.c: -- Executing
> [T em from-sip-external:2] Set("SIP/113.105.152.56-b2e08a38", "DID=s") in new
> stack
> [Nov 14 01:22:34] VERBOSE[21170] logger.c: -- Executing
> [T em from-sip-external:3] Goto("SIP/113.105.152.56-b2e08a38", "s|1") in new
> stack
> [Nov 14 01:22:34] VERBOSE[21170] logger.c: -- Executing
> [s em from-sip-external:1] GotoIf("SIP/113.105.152.56-b2e08a38",
> "0?from-trunk|s|1") in new stack
> [Nov 14 01:22:34] VERBOSE[21170] logger.c: -- Executing
> [s em from-sip-external:2] Set("SIP/113.105.152.56-b2e08a38",
> "TIMEOUT(absolute)=15") in new stack
> [Nov 14 01:22:34] VERBOSE[21170] logger.c: -- Executing
> [s em from-sip-external:3] Answer("SIP/113.105.152.56-b2e08a38", "") in new
> stack
> [Nov 14 01:22:34] VERBOSE[21170] logger.c: -- Executing
> [s em from-sip-external:4] Wait("SIP/113.105.152.56-b2e08a38", "2") in new
> stack
> [Nov 14 01:22:34] VERBOSE[21171] logger.c: == Spawn extension
> (from-sip-external, s, 7) exited non-zero on 'SIP/113.105.152.56-b2e04818'
> [Nov 14 01:22:34] VERBOSE[21171] logger.c: -- Executing
> [T em from-sip-external:1] NoOp("SIP/113.105.152.56-b2e04818", "Received
> incoming SIP connection from unknown peer to T") in new stack
> [Nov 14 01:22:34] VERBOSE[21171] logger.c: -- Executing
> [T em from-sip-external:2] Set("SIP/113.105.152.56-b2e04818", "DID=s") in new
> stack
> [Nov 20 15:23:17] VERBOSE[6506] logger.c: -- Executing
> [s em from-sip-external:1] GotoIf("SIP/113.105.152.56-b3702a48",
> "0?from-trunk|s|1") in new stack
> [Nov 20 15:23:17] VERBOSE[6506] logger.c: -- Executing
> [s em from-sip-external:2] Set("SIP/113.105.152.56-b3702a48",
> "TIMEOUT(absolute)=15") in new stack
> [Nov 20 15:23:17] VERBOSE[6506] logger.c: -- Executing
> [s em from-sip-external:3] Answer("SIP/113.105.152.56-b3702a48", "") in new
> stack
> [Nov 20 15:23:17] VERBOSE[6506] logger.c: == Spawn extension
> (from-sip-external, s, 3) exited non-zero on 'SIP/113.105.152.56-b3702a48'
> [Nov 20 17:05:38] VERBOSE[25061] logger.c: -- Executing
> [00#441616604001 em from-sip-external:1] NoOp("SIP/113.105.152.56-b37009f8",
> "Received incoming SIP connection from unknown peer to 00#441616604001") in
> new stack
> [Nov 20 17:05:38] VERBOSE[25061] logger.c: -- Executing
> [00#441616604001 em from-sip-external:2] Set("SIP/113.105.152.56-b37009f8",
> "DID=00#441616604001") in new stack
> [Nov 20 17:05:38] VERBOSE[25061] logger.c: -- Executing
> [00#441616604001 em from-sip-external:3] Goto("SIP/113.105.152.56-b37009f8",
> "s|1") in new stack
> [Nov 20 17:05:38] VERBOSE[25061] logger.c: -- Executing
> [s em from-sip-external:1] GotoIf("SIP/113.105.152.56-b37009f8",
> "0?from-trunk|00#441616604001|1") in new stack
> [Nov 20 17:05:38] VERBOSE[25061] logger.c: -- Executing
> [s em from-sip-external:2] Set("SIP/113.105.152.56-b37009f8",
> "TIMEOUT(absolute)=15") in new stack
> [Nov 20 17:05:38] VERBOSE[25061] logger.c: -- Executing
> [s em from-sip-external:3] Answer("SIP/113.105.152.56-b37009f8", "") in new
> stack
> [Nov 20 17:05:38] VERBOSE[25061] logger.c: -- Executing
> [s em from-sip-external:4] Wait("SIP/113.105.152.56-b37009f8", "2") in new
> stack
> [Nov 20 17:05:40] VERBOSE[25061] logger.c: -- Executing
> [s em from-sip-external:5] Playback("SIP/113.105.152.56-b37009f8",
> "ss-noservice") in new stack
> [Nov 20 17:05:40] VERBOSE[25061] logger.c: --
> <SIP/113.105.152.56-b37009f8> Playing 'ss-noservice' (language 'en')
> [Nov 20 17:05:47] VERBOSE[25061] logger.c: -- Executing
> [s em from-sip-external:6] PlayTones("SIP/113.105.152.56-b37009f8",
> "congestion") in new stack
> [Nov 20 17:05:47] VERBOSE[25061] logger.c: -- Executing
> [s em from-sip-external:7] Congestion("SIP/113.105.152.56-b37009f8", "5") in
> new stack
> [Nov 20 17:05:52] VERBOSE[25061] logger.c: == Spawn extension
> (from-sip-external, s, 7) exited non-zero on 'SIP/113.105.152.56-b37009f8'
> [Nov 20 17:05:52] VERBOSE[25061] logger.c: -- Executing
> [h em from-sip-external:1] NoOp("SIP/113.105.152.56-b37009f8", "Hangup") in new
> stack
> [Nov 20 17:05:52] VERBOSE[25061] logger.c: -- Executing
> [h em from-sip-external:2] Set("SIP/113.105.152.56-b37009f8", "DID=s") in new
> stack
> [Nov 20 17:05:52] VERBOSE[25061] logger.c: -- Executing
> [h em from-sip-external:3] Goto("SIP/113.105.152.56-b37009f8", "s|1") in new
> stack
> [Nov 20 17:05:52] VERBOSE[25061] logger.c: -- Executing
> [s em from-sip-external:1] GotoIf("SIP/113.105.152.56-b37009f8",
> "0?from-trunk|s|1") in new stack
> [Nov 20 17:05:52] VERBOSE[25061] logger.c: -- Executing
> [s em from-sip-external:2] Set("SIP/113.105.152.56-b37009f8",
> "TIMEOUT(absolute)=15") in new stack
> [Nov 20 17:05:52] VERBOSE[25061] logger.c: -- Executing
> [s em from-sip-external:3] Answer("SIP/113.105.152.56-b37009f8", "") in new
> stack
> [Nov 20 17:05:52] VERBOSE[25061] logger.c: == Spawn extension
> (from-sip-external, s, 3) exited non-zero on 'SIP/113.105.152.56-b37009f8'
>
> **
>
> Fico no aguardo
>
> Abraço
>
>
> Alexandre
> _______________________________________________
> A Redfone é líder no fornecimento de bridges TDMoE <-> E1
> - Valor similar ao de placas E1 PCI;
> - Não há problemas de compatibilidade com barramento PCI;
> - Possibilitam a construção de soluções de alta disponibilidade(dois
> servidores compartilham o mesmo E1)
> Conheça mais sobre este produto em www.red-fone.com
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>
--
Felipe R. Pasa
Instrutor certificado dCAP
visite nosso site!!!!
http://www.voipexperts.com.br
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