Bug 1090427: Backport bug 713926 to bmo/4.2 to protect against csrf for login forms

1 files changed, 13 insertions, 0 deletions

diff --git a/relogin.cgi b/relogin.cgi
index 6eb798205..9eea67bd5 100755
--- a/relogin.cgi
+++ b/relogin.cgi
@@ -67,6 +67,19 @@ elsif ($action eq 'prepare-sudo') {
     # Keep a temporary record of the user visiting this page
     $vars->{'token'} = issue_session_token('sudo_prepared');
 
+    if ($user->authorizer->can_login) {
+        my $value = generate_random_password();
+        my %args;
+        $args{'-secure'} = 1 if Bugzilla->params->{ssl_redirect};
+
+        $cgi->send_cookie(-name => 'Bugzilla_login_request_cookie',
+                          -value => $value,
+                          -httponly => 1,
+                          %args);
+
+        $vars->{'login_request_token'} = issue_hash_token(['login_request', $value]);
+    }
+
     # Show the sudo page
     $vars->{'target_login_default'} = $cgi->param('target_login');
     $vars->{'reason_default'} = $cgi->param('reason');