Florent Daigniere
2 years ago
parent
56a106ad60
commit
e5ab9821f9
@ -0,0 +1,126 @@
|
||||
# This is based on default configuration file for Snuffleupagus (https://snuffleupagus.rtfd.io),
|
||||
# for php8.
|
||||
# It contains "reasonable" defaults that won't break your websites,
|
||||
# and a lot of commented directives that you can enable if you want to
|
||||
# have a better protection.
|
||||
|
||||
# Harden the PRNG
|
||||
sp.harden_random.enable();
|
||||
|
||||
# Disabled XXE
|
||||
sp.xxe_protection.enable();
|
||||
|
||||
# Global configuration variables
|
||||
sp.global.secret_key("{{ SNUFFLEPAGUS_KEY }}");
|
||||
|
||||
# Globally activate strict mode
|
||||
# https://www.php.net/manual/en/language.types.declarations.php#language.types.declarations.strict
|
||||
sp.global_strict.enable();
|
||||
|
||||
# Prevent unserialize-related exploits
|
||||
# sp.unserialize_hmac.enable();
|
||||
|
||||
# Only allow execution of read-only files. This is a low-hanging fruit that you should enable.
|
||||
sp.readonly_exec.enable();
|
||||
|
||||
# PHP has a lot of wrappers, most of them aren't usually useful, you should
|
||||
# only enable the ones you're using.
|
||||
sp.wrappers_whitelist.list("file,php,phar,mailsosubstreams");
|
||||
|
||||
# Prevent sloppy comparisons.
|
||||
sp.sloppy_comparison.enable();
|
||||
|
||||
# Use SameSite on session cookie
|
||||
# https://snuffleupagus.readthedocs.io/features.html#protection-against-cross-site-request-forgery
|
||||
sp.cookie.name("PHPSESSID").samesite("lax");
|
||||
|
||||
# Harden the `chmod` function (0777 (oct = 511, 0666 = 438)
|
||||
sp.disable_function.function("chmod").param("permissions").value("438").drop();
|
||||
sp.disable_function.function("chmod").param("permissions").value("511").drop();
|
||||
|
||||
# Prevent various `mail`-related vulnerabilities
|
||||
sp.disable_function.function("mail").param("additional_parameters").value_r("\\-").drop();
|
||||
|
||||
# Since it's now burned, me might as well mitigate it publicly
|
||||
sp.disable_function.function("putenv").param("assignment").value_r("LD_").drop()
|
||||
|
||||
# This one was burned in Nov 2019 - https://gist.github.com/LoadLow/90b60bd5535d6c3927bb24d5f9955b80
|
||||
sp.disable_function.function("putenv").param("assignment").value_r("GCONV_").drop()
|
||||
|
||||
# Since people are stupid enough to use `extract` on things like $_GET or $_POST, we might as well mitigate this vector
|
||||
sp.disable_function.function("extract").param("array").value_r("^_").drop()
|
||||
sp.disable_function.function("extract").param("flags").value("0").drop()
|
||||
|
||||
# This is also burned:
|
||||
# ini_set('open_basedir','..');chdir('..');…;chdir('..');ini_set('open_basedir','/');echo(file_get_contents('/etc/passwd'));
|
||||
# Since we have no way of matching on two parameters at the same time, we're
|
||||
# blocking calls to open_basedir altogether: nobody is using it via ini_set anyway.
|
||||
# Moreover, there are non-public bypasses that are also using this vector ;)
|
||||
sp.disable_function.function("ini_set").param("option").value_r("open_basedir").drop()
|
||||
|
||||
# Prevent various `include`-related vulnerabilities
|
||||
sp.disable_function.function("require_once").value_r("\.(inc|phtml|php)$").allow();
|
||||
sp.disable_function.function("include_once").value_r("\.(inc|phtml|php)$").allow();
|
||||
sp.disable_function.function("require").value_r("\.(inc|phtml|php)$").allow();
|
||||
sp.disable_function.function("include").value_r("\.(inc|phtml|php)$").allow();
|
||||
sp.disable_function.function("require_once").drop()
|
||||
sp.disable_function.function("include_once").drop()
|
||||
sp.disable_function.function("require").drop()
|
||||
sp.disable_function.function("include").drop()
|
||||
|
||||
# Prevent `system`-related injections
|
||||
sp.disable_function.function("system").param("command").value_r("[$|;&`\\n\\(\\)\\\\]").drop();
|
||||
sp.disable_function.function("shell_exec").param("command").value_r("[$|;&`\\n\\(\\)\\\\]").drop();
|
||||
sp.disable_function.function("exec").param("command").value_r("[$|;&`\\n\\(\\)\\\\]").drop();
|
||||
sp.disable_function.function("proc_open").param("command").value_r("^gpg ").allow();
|
||||
sp.disable_function.function("proc_open").param("command").value_r("[$|;&`\\n\\(\\)\\\\]").drop();
|
||||
|
||||
# Prevent runtime modification of interesting things
|
||||
sp.disable_function.function("ini_set").param("option").value("assert.active").drop();
|
||||
sp.disable_function.function("ini_set").param("option").value("zend.assertions").drop();
|
||||
sp.disable_function.function("ini_set").param("option").value("memory_limit").drop();
|
||||
sp.disable_function.function("ini_set").param("option").value("include_path").drop();
|
||||
sp.disable_function.function("ini_set").param("option").value("open_basedir").drop();
|
||||
|
||||
# Detect some backdoors via environment recon
|
||||
sp.disable_function.function("ini_get").param("option").value("allow_url_fopen").drop();
|
||||
sp.disable_function.function("ini_get").param("option").value("open_basedir").drop();
|
||||
sp.disable_function.function("ini_get").param("option").value_r("suhosin").drop();
|
||||
sp.disable_function.function("function_exists").param("function").value("eval").drop();
|
||||
sp.disable_function.function("function_exists").param("function").value("exec").drop();
|
||||
sp.disable_function.function("function_exists").param("function").value("system").drop();
|
||||
sp.disable_function.function("function_exists").param("function").value("shell_exec").drop();
|
||||
sp.disable_function.function("function_exists").param("function").value("proc_open").drop();
|
||||
sp.disable_function.function("function_exists").param("function").value("passthru").drop();
|
||||
sp.disable_function.function("is_callable").param("value").value("eval").drop();
|
||||
sp.disable_function.function("is_callable").param("value").value("exec").drop();
|
||||
sp.disable_function.function("is_callable").param("value").value("system").drop();
|
||||
sp.disable_function.function("is_callable").param("value").value("shell_exec").drop();
|
||||
sp.disable_function.function("is_callable").filename_r("/app/libraries/snappymail/pgp/gpg\.php$").param("value").value("proc_open").allow();
|
||||
sp.disable_function.function("is_callable").param("value").value("proc_open").drop();
|
||||
sp.disable_function.function("is_callable").param("value").value("passthru").drop();
|
||||
|
||||
# Ghetto error-based sqli detection
|
||||
#sp.disable_function.function("mysql_query").ret("FALSE").drop();
|
||||
#sp.disable_function.function("mysqli_query").ret("FALSE").drop();
|
||||
#sp.disable_function.function("PDO::query").ret("FALSE").drop();
|
||||
|
||||
# Ensure that certificates are properly verified
|
||||
sp.disable_function.function("curl_setopt").param("value").value("1").allow();
|
||||
sp.disable_function.function("curl_setopt").param("value").value("2").allow();
|
||||
# `81` is SSL_VERIFYHOST and `64` SSL_VERIFYPEER
|
||||
sp.disable_function.function("curl_setopt").param("option").value("64").drop().alias("Please don't turn CURLOPT_SSL_VERIFYCLIENT off.");
|
||||
sp.disable_function.function("curl_setopt").param("option").value("81").drop().alias("Please don't turn CURLOPT_SSL_VERIFYHOST off.");
|
||||
|
||||
# File upload
|
||||
sp.disable_function.function("move_uploaded_file").param("to").value_r("\\.ph").drop();
|
||||
sp.disable_function.function("move_uploaded_file").param("to").value_r("\\.ht").drop();
|
||||
|
||||
# Logging lockdown
|
||||
sp.disable_function.function("ini_set").param("option").value_r("error_log").drop()
|
||||
sp.disable_function.function("ini_set").param("option").value_r("display_errors").drop()
|
||||
|
||||
sp.auto_cookie_secure.enable();
|
||||
sp.cookie.name("roundcube_sessauth").samesite("strict");
|
||||
sp.cookie.name("roundcube_sessid").samesite("strict");
|
||||
sp.ini_protection.policy_silent_fail();
|
||||
Loading…
Reference in New Issue