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| author | Marc Alexander <admin@m-a-styles.de> | 2017-07-09 15:38:18 +0200 |
|---|---|---|
| committer | Marc Alexander <admin@m-a-styles.de> | 2017-07-09 15:38:18 +0200 |
| commit | a281d526dc6cf48011c1d9e04399848f7c0c08c2 (patch) | |
| tree | 1105ab9ddb5f8f25dfc6c30e124be714db97e336 /phpBB | |
| parent | 1c4f49249ffe8457914372b08b15056ad5d38085 (diff) | |
| download | forums-a281d526dc6cf48011c1d9e04399848f7c0c08c2.tar forums-a281d526dc6cf48011c1d9e04399848f7c0c08c2.tar.gz forums-a281d526dc6cf48011c1d9e04399848f7c0c08c2.tar.bz2 forums-a281d526dc6cf48011c1d9e04399848f7c0c08c2.tar.xz forums-a281d526dc6cf48011c1d9e04399848f7c0c08c2.zip | |
[ticket/security/210] Prevent using IP addresses or ports for remote avatar
SECURITY-210
Diffstat (limited to 'phpBB')
| -rw-r--r-- | phpBB/phpbb/avatar/driver/remote.php | 7 | ||||
| -rw-r--r-- | phpBB/phpbb/avatar/driver/upload.php | 10 |
2 files changed, 15 insertions, 2 deletions
diff --git a/phpBB/phpbb/avatar/driver/remote.php b/phpBB/phpbb/avatar/driver/remote.php index bec54897b2..32f450d6f0 100644 --- a/phpBB/phpbb/avatar/driver/remote.php +++ b/phpBB/phpbb/avatar/driver/remote.php @@ -85,8 +85,11 @@ class remote extends \phpbb\avatar\driver\driver } // Check if this url looks alright - // This isn't perfect, but it's what phpBB 3.0 did, and might as well make sure everything is compatible - if (!preg_match('#^(http|https|ftp)://(?:(.*?\.)*?[a-z0-9\-]+?\.[a-z]{2,4}|(?:\d{1,3}\.){3,5}\d{1,3}):?([0-9]*?).*?\.('. implode('|', $this->allowed_extensions) . ')$#i', $url)) + // Do not allow specifying the port (see RFC 3986) or IP addresses + if (!preg_match('#^(http|https|ftp)://(?:(.*?\.)*?[a-z0-9\-]+?\.[a-z]{2,4}|(?:\d{1,3}\.){3,5}\d{1,3}):?([0-9]*?).*?\.('. implode('|', $this->allowed_extensions) . ')$#i', $url) || + preg_match('@^(http|https|ftp)://[^/:?#]+:[0-9]+[/:?#]@i', $url) || + preg_match('#(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])#i', $url) || + preg_match('#(?:(?:(?:[\dA-F]{1,4}:){6}(?:[\dA-F]{1,4}:[\dA-F]{1,4}|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:::(?:[\dA-F]{1,4}:){0,5}(?:[\dA-F]{1,4}(?::[\dA-F]{1,4})?|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:(?:[\dA-F]{1,4}:):(?:[\dA-F]{1,4}:){4}(?:[\dA-F]{1,4}:[\dA-F]{1,4}|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:(?:[\dA-F]{1,4}:){1,2}:(?:[\dA-F]{1,4}:){3}(?:[\dA-F]{1,4}:[\dA-F]{1,4}|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:(?:[\dA-F]{1,4}:){1,3}:(?:[\dA-F]{1,4}:){2}(?:[\dA-F]{1,4}:[\dA-F]{1,4}|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:(?:[\dA-F]{1,4}:){1,4}:(?:[\dA-F]{1,4}:)(?:[\dA-F]{1,4}:[\dA-F]{1,4}|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:(?:[\dA-F]{1,4}:){1,5}:(?:[\dA-F]{1,4}:[\dA-F]{1,4}|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:(?:[\dA-F]{1,4}:){1,6}:[\dA-F]{1,4})|(?:(?:[\dA-F]{1,4}:){1,7}:)|(?:::))#i', $url)) { $error[] = 'AVATAR_URL_INVALID'; return false; diff --git a/phpBB/phpbb/avatar/driver/upload.php b/phpBB/phpbb/avatar/driver/upload.php index cb8dfcad4f..abfe8a7f0f 100644 --- a/phpBB/phpbb/avatar/driver/upload.php +++ b/phpBB/phpbb/avatar/driver/upload.php @@ -134,6 +134,16 @@ class upload extends \phpbb\avatar\driver\driver return false; } + // Do not allow specifying the port (see RFC 3986) or IP addresses + // remote_upload() will do its own check for allowed filetypes + if (preg_match('@^(http|https|ftp)://[^/:?#]+:[0-9]+[/:?#]@i', $url) || + preg_match('#(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])#i', $url) || + preg_match('#(?:(?:(?:[\dA-F]{1,4}:){6}(?:[\dA-F]{1,4}:[\dA-F]{1,4}|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:::(?:[\dA-F]{1,4}:){0,5}(?:[\dA-F]{1,4}(?::[\dA-F]{1,4})?|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:(?:[\dA-F]{1,4}:):(?:[\dA-F]{1,4}:){4}(?:[\dA-F]{1,4}:[\dA-F]{1,4}|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:(?:[\dA-F]{1,4}:){1,2}:(?:[\dA-F]{1,4}:){3}(?:[\dA-F]{1,4}:[\dA-F]{1,4}|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:(?:[\dA-F]{1,4}:){1,3}:(?:[\dA-F]{1,4}:){2}(?:[\dA-F]{1,4}:[\dA-F]{1,4}|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:(?:[\dA-F]{1,4}:){1,4}:(?:[\dA-F]{1,4}:)(?:[\dA-F]{1,4}:[\dA-F]{1,4}|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:(?:[\dA-F]{1,4}:){1,5}:(?:[\dA-F]{1,4}:[\dA-F]{1,4}|(?:(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.){3}(?:\d{1,2}|1\d\d|2[0-4]\d|25[0-5])))|(?:(?:[\dA-F]{1,4}:){1,6}:[\dA-F]{1,4})|(?:(?:[\dA-F]{1,4}:){1,7}:)|(?:::))#i', $url)) + { + $error[] = 'AVATAR_URL_INVALID'; + return false; + } + $file = $upload->remote_upload($url, $this->mimetype_guesser); } else |