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Reformat function in SSH base script.

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This commit is contained in:
Benjamin Bannier 2021-06-16 14:57:30 +02:00
parent 0bf475f055
commit e6e30240ec
1 changed files with 45 additions and 45 deletions
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90
scripts/base/protocols/ssh/main.zeek
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@ -156,51 +156,51 @@ function set_session(c: connection)
}
function set_version(c: connection, version: string)
{
if ( c$ssh?$server && c$ssh?$client && |c$ssh$client| > 4 && |c$ssh$server| > 4 )
{
if ( c$ssh$client[4] == "1" && c$ssh$server[4] == "2" )
{
# SSH199 vs SSH2 -> 2
if ( ( |c$ssh$client| > 7 ) && ( c$ssh$client[6] == "9" ) && ( c$ssh$client[7] == "9" ) )
c$ssh$version = 2;
# SSH1 vs SSH2 -> Undefined
else
c$ssh$version = 0;
}
else if ( c$ssh$client[4] == "2" && c$ssh$server[4] == "1" )
{
# SSH2 vs SSH199 -> 2
if ( ( |c$ssh$server| > 7 ) && ( c$ssh$server[6] == "9" ) && ( c$ssh$server[7] == "9" ) )
c$ssh$version = 2;
else
# SSH2 vs SSH1 -> Undefined
c$ssh$version = 0;
}
else if ( c$ssh$client[4] == "1" && c$ssh$server[4] == "1" )
{
# SSH1 vs SSH199 -> 1
if ( ( |c$ssh$server| > 7 ) && ( c$ssh$server[6] == "9" ) && ( c$ssh$server[7] == "9" ) )
{
# SSH199 vs SSH199
if (( |c$ssh$client| > 7 ) && ( c$ssh$client[6] == "9" ) && ( c$ssh$client[7] == "9" ))
c$ssh$version = 2;
else
c$ssh$version = 1;
}
else
{
# SSH1 vs SSH1 -> 1
c$ssh$version = 1;
}
}
# SSH2 vs SSH2
else if (c$ssh$client[4] == "2" && c$ssh$server[4] == "2" )
{
c$ssh$version = 2;
}
}
}
{
if ( c$ssh?$server && c$ssh?$client && |c$ssh$client| > 4 && |c$ssh$server| > 4 )
{
if ( c$ssh$client[4] == "1" && c$ssh$server[4] == "2" )
{
# SSH199 vs SSH2 -> 2
if ( ( |c$ssh$client| > 7 ) && ( c$ssh$client[6] == "9" ) && ( c$ssh$client[7] == "9" ) )
c$ssh$version = 2;
# SSH1 vs SSH2 -> Undefined
else
c$ssh$version = 0;
}
else if ( c$ssh$client[4] == "2" && c$ssh$server[4] == "1" )
{
# SSH2 vs SSH199 -> 2
if ( ( |c$ssh$server| > 7 ) && ( c$ssh$server[6] == "9" ) && ( c$ssh$server[7] == "9" ) )
c$ssh$version = 2;
else
# SSH2 vs SSH1 -> Undefined
c$ssh$version = 0;
}
else if ( c$ssh$client[4] == "1" && c$ssh$server[4] == "1" )
{
# SSH1 vs SSH199 -> 1
if ( ( |c$ssh$server| > 7 ) && ( c$ssh$server[6] == "9" ) && ( c$ssh$server[7] == "9" ) )
{
# SSH199 vs SSH199
if (( |c$ssh$client| > 7 ) && ( c$ssh$client[6] == "9" ) && ( c$ssh$client[7] == "9" ))
c$ssh$version = 2;
else
c$ssh$version = 1;
}
else
{
# SSH1 vs SSH1 -> 1
c$ssh$version = 1;
}
}
# SSH2 vs SSH2
else if (c$ssh$client[4] == "2" && c$ssh$server[4] == "2" )
{
c$ssh$version = 2;
}
}
}
event ssh_server_version(c: connection, version: string)
{