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authorAndrey Andreev <narf@devilix.net>2015-10-26 14:31:38 +0100
committerAndrey Andreev <narf@devilix.net>2015-10-31 17:55:30 +0100
commit0a6b0661305f20ac1fbd219d43f59193bea90d1d (patch)
treeea43dad00c9a93b64ea9c823c0702ddf937fc2d8 /system/core/Config.php
parent71b1b3f5b2dcc0f4b652e9494e9853b82541ac8c (diff)
Prevent Host header injections
Diffstat (limited to 'system/core/Config.php')
-rw-r--r--system/core/Config.php6
1 files changed, 2 insertions, 4 deletions
diff --git a/system/core/Config.php b/system/core/Config.php
index feea7c85a..0264776f9 100644
--- a/system/core/Config.php
+++ b/system/core/Config.php
@@ -88,11 +88,9 @@ class CI_Config {
// Set the base_url automatically if none was provided
if (empty($this->config['base_url']))
{
- // The regular expression is only a basic validation for a valid "Host" header.
- // It's not exhaustive, only checks for valid characters.
- if (isset($_SERVER['HTTP_HOST']) && preg_match('/^((\[[0-9a-f:]+\])|(\d{1,3}(\.\d{1,3}){3})|[a-z0-9\-\.]+)(:\d+)?$/i', $_SERVER['HTTP_HOST']))
+ if (isset($_SERVER['SERVER_ADDR']))
{
- $base_url = (is_https() ? 'https' : 'http').'://'.$_SERVER['HTTP_HOST']
+ $base_url = (is_https() ? 'https' : 'http').'://'.$_SERVER['SERVER_ADDR']
.substr($_SERVER['SCRIPT_NAME'], 0, strpos($_SERVER['SCRIPT_NAME'], basename($_SERVER['SCRIPT_FILENAME'])));
}
else