Title: suPHP 'suPHP_ConfigPath' Safe Mode Restriction-Bypass Vulnerability
Severity: MODERATE
Description:
suPHP is a module for the Apache webserver; it enforces additional restrictions on PHP scripts.
suPHP is prone to a 'safe_mode' restriction-bypass vulnerability. Specifically, attackers may use the 'suPHP_ConfigPath' variable in a '.htaccess' file to specify an arbitrary path for the 'php.ini' configuration file. By pointing to an attacker-controlled location, the attacker may substitute a malicious configuration file that relaxes expected restrictions on hosted scripts.
Successful exploits may allow attackers to bypass arbitrary PHP configuration options, including the 'safe_mode' setting.
This vulnerability would be an issue in shared-hosting configurations where multiple users can create and execute arbitrary PHP script code, with the 'safe_mode' restrictions assumed to isolate the users from each other.
Affected Products:
- suPHP suPHP 0.3.0
- suPHP suPHP 0.3.1
- suPHP suPHP 0.5.0
- suPHP suPHP 0.5.1
- suPHP suPHP 0.5.2
- suPHP suPHP 0.6.2
- suPHP suPHP 0.6.3
- suPHP suPHP 0.7.0
References:
- suPHP: suPHP Homepage
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