Smarty modifier.regex_replace.php plugin security bypass
| smarty-modifierregexreplace-security-bypass (41002) |  Medium Risk |
Description:
Smarty could allow a remote attacker to bypass security restrictions, caused by an error in the modifier.regex_replace.php plugin. An attacker could exploit this vulnerability using the template security features related to a '\0' character search string to bypass the template security and possibly execute arbitrary PHP code on the system.
Platforms Affected:
- Debian, Debian Linux 3.1
- Debian, Debian Linux 4.0
- s9y, Serendipity prior to 1.3
- Smarty, Smarty prior to 2.6.19
Remedy:
Upgrade to the latest version of Smarty (2.6.19 or later), available from the Smarty Download Web page. See References.
For Serendipity:
Upgrade to the latest version of Serendipity (1.3 or later), available from the Serendipity Web site. See References.
Consequences:
Bypass Security
References:
- Serendipity Web site, Serendipity 1.3 released (addresses security) at http://blog.s9y.org/archives/192-Serendipity-1.3-released-addresses-security.html.
- Smarty Changelog, Feb 11th, 2008, Version 2.6.19 at http://www.smarty.net/misc/NEWS.
- Smarty Download Web page, Download at http://smarty.php.net/download.php.
- BID-28105: Smarty Template Engine 'regex_replace' Template Security Bypass Vulnerability
- CVE-2008-1066: The modifier.regex_replace.php plugin in Smarty before 2.6.19, as used by Serendipity (S9Y) and other products, allows attackers to call arbitrary PHP functions via templates, related to a '\0' character in a search string.
- DSA-1520: smarty -- insufficient input sanitising
- SA29241: Smarty "regex_replace" Modifier Template Security Bypass
- SA29398: Serendipity Security Bypass and Script Insertion Vulnerabilities
- SUSE-SR:2008:007: SUSE Security Summary Report
Reported:
Feb 11, 2008
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