Description
The (1) session_save_path, (2) ini_set, and (3) error_log functions in PHP 4.4.7 and earlier, and PHP 5 5.2.3 and earlier, when invoked from a .htaccess file, allow remote attackers to bypass safe_mode and open_basedir restrictions and possibly execute arbitrary commands, as demonstrated using (a) php_value, (b) php_flag, and (c) directives in .htaccess.
Remediation
References
Related Vulnerabilities
PHP Improper Input Validation Vulnerability (CVE-2021-21705)
WordPress Plugin VaultPress Unspecified Vulnerability (1.7.1)
WordPress Plugin SL User Create Information Disclosure (0.2.4)
ownCloud Improper Access Control Vulnerability (CVE-2016-9468)
Moodle Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2012-1161)