The remote host is missing an update to phpgroupware announced via advisory DSA 419-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20419-1

The authors of phpgroupware, a web based groupware system written in PHP, discovered several vulnerabilities. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2004-0016 In the calendar module, save extension was not enforced for holiday files. As a result, server-side php scripts may be placed in directories that then could be accessed remotely and cause the webserver to execute those. This was resolved by enforcing the extension .txt for holiday files. CVE-2004-0017 Some SQL injection problems (non-escaping of values used in SQL strings) the calendar and infolog modules. Additionally, the Debian maintainer adjusted the permissions on world writable directories that were accidently created by former postinst during the installation. For the stable distribution (woody) this problem has been fixed in version 0.9.14-0.RC3.2.woody3. For the unstable distribution (sid) this problem has been fixed in version 0.9.14.007-4. We recommend that you upgrade your phpgroupware, phpgroupware-calendar