Features:
Engine Protection (only with patch)
Protects the internal memory manager against bufferoverflows with Canary and SafeUnlink Protection
Protects Destructors of Zend Hashtables
Protects Destructors of Zend Linked-Lists
Protects the PHP core and extensions against format string vulnerabilities
Protects against errors in certain libc realpath() implementations
Misc Features
Protection Simulation mode
Adds the functions sha256() and sha256_file() to the PHP core
Adds support for CRYPT_BLOWFISH to crypt() on all platforms
Transparent protection of open phpinfo() pages
EXPERIMENTAL SQL database user protection
Runtime Protection
Transparent Cookie Encryption
Protects against different kinds of (Remote-)Include Vulnerabilities
disallows Remote URL inclusion (optional: black-/whitelisting)
disallows inclusiong of uploaded files
optionally stops directory traversal attacks
Allows disabling the preg_replace() /e modifier
Allows disabling eval()
Protects against infinite recursion through a configureabel maximum execution depth
Supports per Virtual Host / Directory configureable function black- and whitelists
Supports a separated function black- and whitelist for evaluated code
Protects against HTTP Response Splitting Vulnerabilities
Protects against scripts manipulating the memory_limit
Protects PHP‘s superglobals against extract() and import_request_vars()
Adds protection against newline attacks to mail()
Adds protection against \0 attack on preg_replace()
Session Protection
Transparent encryption of session data
Transparent session hijacking protection
Protection against overlong session identifiers
Protection against malicious chars in session identifiers
Filtering Features
Filters ASCIIZ characters from user input
Ignores GET, POST, COOKIE variables with the following names:
GLOBALS, _COOKIE, _ENV, _FILES, _GET, _POST, _REQUEST
_SERVER, _SESSION, HTTP_COOKIE_VARS, HTTP_ENV_VARS
HTTP_GET_VARS, HTTP_POST_VARS, HTTP_POST_FILES
HTTP_RAW_POST_DATA, HTTP_SERVER_VARS, HTTP_SESSION_VARS
Allows enforcing limits on REQUEST variables or separated by type (GET, POST, COOKIE)
Supports a number of variables per request limit
Supports a maximum length of variable names [with and without indicies]
Supports a maximum length of array indicies
Supports a maximum length of variable values
Supports a maximum depth of arrays
Allows only a configureable number of uploaded files
Supports verification of uploaded files through an external script
Supports automatic banning of uploaded ELF executables
Supports automatic banning of uploaded binary files
Supports automatic stripping of binary content in uploaded files
Configureable action on violation
just block violating variables
send HTTP response code
redirect the browser
execute another PHP script
Logging Features
Supports multiple log devices (syslog, SAPI module error log, external logging script)
Supports freely configureable syslog facility and priority
Supports log device separated selection of alert types to log
Alerts contain filename and linenumber that triggered it
Alerts contain the IP address of the user triggering it
The IP Address can also be extracted from X-Forwarded-For HTTP headers (f.e. for reverse proxy setups)
Installation and Configuration
# cd / tmpThe next step is to enable the module in php.ini, editing /etc/php5/apache2/php.ini and adding this line:
# wget http://download.suhosin.org/suhosin-0.9.27.tgz
# tar xzf suhosin-0.9.23.tgz
# cd suhosin-0.9.23
# ./configure
# make
# make install
extension = suhosin.soNow just restart Apache and suhosin begin to do it's dirty work:)
For more detail configuration, check here
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source:http://linuxpoison.blogspot.com/2009/01/13578175715980.html