diff options
Diffstat (limited to 'lib/Net/IMAP/InterIMAP.pm')
| -rw-r--r-- | lib/Net/IMAP/InterIMAP.pm | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/lib/Net/IMAP/InterIMAP.pm b/lib/Net/IMAP/InterIMAP.pm index 1bff06e..b01e1a9 100644 --- a/lib/Net/IMAP/InterIMAP.pm +++ b/lib/Net/IMAP/InterIMAP.pm @@ -464,6 +464,7 @@ sub new($%) { $self->logger('S: xxx ', $IMAP_text); $self->{debug} = $dbg; } + $self->{_STATE} = 'AUTH'; unless ($IMAP_text =~ /\A\Q$IMAP_cond\E \[CAPABILITY /) { # refresh the CAPABILITY list since the previous one had only pre-login capabilities @@ -471,7 +472,15 @@ sub new($%) { $self->capabilities(); } } - $self->{_STATE} = 'AUTH'; + elsif ($IMAP_cond eq 'PREAUTH') { + if ($self->{type} eq 'imap' and $self->{STARTTLS} != 0) { + $self->fail("PREAUTH greeting on plaintext connection? MiTM in action? Aborting, set \"STARTTLS = NO\" to ignore."); + } + $self->{_STATE} = 'AUTH'; + } + else { + $self->panic(); + } # Don't send the COMPRESS command before STARTTLS or AUTH, as per RFC 4978 if ($self->{compress} // 1 and @@ -506,6 +515,7 @@ sub new($%) { : ($self->{enable}); if (@extensions) { $self->fail("Server did not advertise ENABLE (RFC 5161) capability.") unless $self->_capable('ENABLE'); + $self->fail("Server did not advertise $_ capability.") foreach grep { !$self->_capable($_) } @extensions; $self->_send('ENABLE '.join(' ',@extensions)); my @enabled = @{$self->{_ENABLED} // []}; $self->fail("Couldn't ENABLE $_") foreach @@ -1653,6 +1663,11 @@ sub _start_ssl($$) { my $ctx = Net::SSLeay::CTX_new() or $self->panic("Failed to create SSL_CTX $!"); my $ssl_options = Net::SSLeay::OP_SINGLE_DH_USE() | Net::SSLeay::OP_SINGLE_ECDH_USE(); + if (defined $self->{_OUTBUF} and $self->{_OUTBUF} ne '') { + $self->warn("Truncating non-empty output buffer (unauthenticated response injection?)"); + undef $self->{_OUTBUF}; + } + $self->{SSL_protocols} //= q{!SSLv2 !SSLv3 !TLSv1 !TLSv1.1}; my ($proto_include, $proto_exclude) = (0, 0); foreach (split /\s+/, $self->{SSL_protocols}) { @@ -1679,7 +1694,7 @@ sub _start_ssl($$) { Net::SSLeay::CTX_set_mode($ctx, Net::SSLeay::MODE_ENABLE_PARTIAL_WRITE() | Net::SSLeay::MODE_ACCEPT_MOVING_WRITE_BUFFER() | - Net::SSLeay::MODE_AUTO_RETRY() | # don't fail SSL_read on renegociation + Net::SSLeay::MODE_AUTO_RETRY() | # don't fail SSL_read on renegotiation Net::SSLeay::MODE_RELEASE_BUFFERS() ); if (defined (my $ciphers = $self->{SSL_cipherlist})) { |