[asterisk-dev] [Code Review] Asterisk does not fail TCP/TLS SIP calls when certificate checking fails

[jcolp]

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trunk/main/tcptls.c
<https://reviewboard.asterisk.org/r/2163/#comment14049>

    Removal of the call to SSL_get_peer_certificate from here is incorrect. SSL_get_verify_result will return X509_V_OK if no peer certificate was presented, so you need to use both to confirm verification actually occurred.


- jcolp


On Oct. 15, 2012, 8:54 a.m., opticron wrote:
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> (Updated Oct. 15, 2012, 8:54 a.m.)
> 
> 
> Review request for Asterisk Developers.
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> 
> Summary
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> When calling using TCP/TLS with an invalid CA certificate for the key in use and tlsdontverifyserver is set to no, Asterisk produces the error message:
> ERROR[16872]: tcptls.c:199 handle_tcptls_connection: Certificate did not verify: certificate signature failure
> 
> This should cause the call to fail, but it does not. The call instead completes successfully.  This patch corrects that behavior as well as avoids a segfault if the remote end does not provide a certificate at all.
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> 
> This addresses bug ASTERISK-20559.
>     https://issues.asterisk.org/jira/browse/ASTERISK-20559
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> Diffs
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>   trunk/main/tcptls.c 374904 
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> Diff: https://reviewboard.asterisk.org/r/2163/diff
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> 
> Testing
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> Ensured that the TCP/TLS call failed when expected and succeeded when expected.
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> 
> Thanks,
> 
> opticron
> 
>

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