diff --git a/src/applications/config/controller/PhabricatorConfigConsoleController.php b/src/applications/config/controller/PhabricatorConfigConsoleController.php
--- a/src/applications/config/controller/PhabricatorConfigConsoleController.php
+++ b/src/applications/config/controller/PhabricatorConfigConsoleController.php
@@ -150,6 +150,16 @@
     $log_futures = array();
     $remote_futures = array();
 
+    // Git commands needs the HOME environment variable
+    // to read their .gitconfig - otherwise you cannot
+    // fix errors like "detected dubious ownership"
+    // https://we.phorge.it/T15282
+    $commands_env = array();
+    $webserver_user = posix_getpwuid(posix_geteuid());
+    if ($webserver_user !== false) {
+      $commands_env['HOME'] = $webserver_user['dir'];
+    }
+
     foreach ($specs as $lib) {
       $root = dirname(phutil_get_library_root($lib));
 
@@ -161,9 +171,11 @@
         'git remote -v');
 
       $log_futures[$lib] = id(new ExecFuture('%C', $log_command))
+        ->setEnv($commands_env)
         ->setCWD($root);
 
       $remote_futures[$lib] = id(new ExecFuture('%C', $remote_command))
+        ->setEnv($commands_env)
         ->setCWD($root);
     }