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Code Issues Projects Releases Packages Wiki Activity Actions 3

SSH: Various updates.

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This commit is contained in:
Vlad Grigorescu 2014-04-22 18:26:39 -04:00
parent 78b5f6b94b
commit 2698fcea8e
6 changed files with 126 additions and 50 deletions
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50
src/analyzer/protocol/ssh/ssh-analyzer.pac
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@ -3,8 +3,34 @@
refine flow SSH_Flow += {
function proc_ssh_version(msg: SSH_Version): bool
%{
BifEvent::generate_ssh_version(connection()->bro_analyzer(), connection()->bro_analyzer()->Conn(), ${msg.is_orig},
bytestring_to_val(${msg.version}));
if ( ssh_client_version && ${msg.is_orig } )
BifEvent::generate_ssh_client_version(connection()->bro_analyzer(), connection()->bro_analyzer()->Conn(), bytestring_to_val(${msg.version}));
else if ( ssh_server_version )
BifEvent::generate_ssh_server_version(connection()->bro_analyzer(), connection()->bro_analyzer()->Conn(), bytestring_to_val(${msg.version}));
return true;
%}
function proc_ssh_kexinit(msg: SSH_KEXINIT): bool
%{
if ( ssh_server_capabilities )
BifEvent::generate_ssh_server_capabilities(connection()->bro_analyzer(), connection()->bro_analyzer()->Conn(),
bytestring_to_val(${msg.kex_algorithms}), bytestring_to_val(${msg.server_host_key_algorithms}),
bytestring_to_val(${msg.encryption_algorithms_client_to_server}),
bytestring_to_val(${msg.encryption_algorithms_server_to_client}),
bytestring_to_val(${msg.mac_algorithms_client_to_server}),
bytestring_to_val(${msg.mac_algorithms_server_to_client}),
bytestring_to_val(${msg.compression_algorithms_client_to_server}),
bytestring_to_val(${msg.compression_algorithms_server_to_client}),
bytestring_to_val(${msg.languages_client_to_server}),
bytestring_to_val(${msg.languages_server_to_client}));
return true;
%}
function proc_ssh_server_host_key(key: bytestring): bool
%{
if ( ssh_server_host_key )
BifEvent::generate_ssh_server_host_key(connection()->bro_analyzer(), connection()->bro_analyzer()->Conn(),
bytestring_to_val(${key}));
return true;
%}
@ -14,12 +40,30 @@ refine flow SSH_Flow += {
return true;
%}
function debug(loc: uint8): bool
%{
printf("DEBUG: %d", loc);
return true;
%}
};
refine typeattr SSH_Version += &let {
proc: bool = $context.flow.proc_ssh_version(this);
};
refine typeattr SSH_KEXINIT += &let {
proc: bool = $context.flow.proc_ssh_kexinit(this);
};
refine typeattr SSH_DH_GEX_REPLY += &let {
proc: bool = $context.flow.proc_ssh_server_host_key(k_s.val);
};
refine typeattr SSH_DH_GEX_GROUP += &let {
proc: bool = $context.flow.proc_ssh_server_host_key(p.val);
};
refine typeattr SSH_Message += &let {
proc_newkeys: bool = $context.flow.proc_newkeys() &if(msg_type == SSH_MSG_NEWKEYS);
};
};