Ensure Asterisk fails TCP/TLS SIP calls when certificate checking fails

When placing a call to a TCP/TLS SIP endpoint whose certificate is not
signed by a configured CA certificate, Asterisk would issue a warning
and continue to process the call as if there was not an issue with the
certificate.  Asterisk now properly fails the call if the certificate
fails verification or if the certificate does not exist when
certificate checking is enabled (the default behavior).

(closes issue ASTERISK-20559)
Reported by: kmoore

Review: https://reviewboard.asterisk.org/r/2163/
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Merged revisions 375146 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 375147 from http://svn.asterisk.org/svn/asterisk/branches/10
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Merged revisions 375148 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@375149 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kinsey Moore 2012-10-17 19:01:27 +00:00
parent 6d57ecd48c
commit 372e29620c
1 changed files with 11 additions and 7 deletions

View File

@ -198,11 +198,19 @@ static void *handle_tcptls_connection(void *data)
long res;
peer = SSL_get_peer_certificate(tcptls_session->ssl);
if (!peer) {
ast_log(LOG_WARNING, "No peer SSL certificate\n");
ast_log(LOG_ERROR, "No peer SSL certificate to verify\n");
ast_tcptls_close_session_file(tcptls_session);
ao2_ref(tcptls_session, -1);
return NULL;
}
res = SSL_get_verify_result(tcptls_session->ssl);
if (res != X509_V_OK) {
ast_log(LOG_ERROR, "Certificate did not verify: %s\n", X509_verify_cert_error_string(res));
X509_free(peer);
ast_tcptls_close_session_file(tcptls_session);
ao2_ref(tcptls_session, -1);
return NULL;
}
if (!ast_test_flag(&tcptls_session->parent->tls_cfg->flags, AST_SSL_IGNORE_COMMON_NAME)) {
ASN1_STRING *str;
@ -233,17 +241,13 @@ static void *handle_tcptls_connection(void *data)
}
if (!found) {
ast_log(LOG_ERROR, "Certificate common name did not match (%s)\n", tcptls_session->parent->hostname);
if (peer) {
X509_free(peer);
}
X509_free(peer);
ast_tcptls_close_session_file(tcptls_session);
ao2_ref(tcptls_session, -1);
return NULL;
}
}
if (peer) {
X509_free(peer);
}
X509_free(peer);
}
}
if (!tcptls_session->f) { /* no success opening descriptor stacking */