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4606 add checks for values before use in samparse.pl

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This commit is contained in:
William Schaefer 2019-01-15 15:34:44 -05:00
parent bb1b99172a
commit 2e1ca275e1
1 changed files with 15 additions and 6 deletions
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21
thirdparty/rr-full/plugins/samparse.pl vendored
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@ -80,12 +80,21 @@ sub pluginmain {
my $key_path = 'SAM\\Domains\\Account\\Users'; my $key_path = 'SAM\\Domains\\Account\\Users';
my $key; my $key;
my $local_sid = ""; my $local_sid = "";
my $account_value = $root_key->get_subkey("SAM\\Domains\\Account")->get_value("V")->get_data();; my $account_key = $root_key->get_subkey("SAM\\Domains\\Account");
if (defined $account_value) { if (defined $account_key) {
my $data_len = length($account_value); my $account_value = $account_key->get_value("V");
if ($data_len >= 12) { if (defined $account_value) {
my @vAt = unpack("VVV",substr($account_value, $data_len-12, 12)); my $account_data = $account_value->get_data();
$local_sid = "S-1-5-21-".$vAt[0]."-".$vAt[1]."-".$vAt[2]; if (defined $account_data) {
my $data_len = length($account_data);
if ($data_len >= 12) {
my @vArray = unpack("VVV",substr($account_data, $data_len-12, 12));
my $vArray_len = @vArray;
if ($vArray_len == 3) {
$local_sid = "S-1-5-21-".$vArray[0]."-".$vArray[1]."-".$vArray[2];
}
}
}
} }
} }
if ($key = $root_key->get_subkey($key_path)) { if ($key = $root_key->get_subkey($key_path)) {