WebCalendar export_handler.php allows files to be overwritten
| webcalendar-exporthandler-file-overwrite (23370) |  Medium Risk |
Description:
WebCalendar could allow a remote attacker to overwrite arbitrary files on the system. A remote attacker could send a specially-crafted SQL script to the export_handler.php script using either the id or format parameters to overwrite arbitrary files using remote or local sources.
Platforms Affected:
- Debian, Debian Linux 3.1
- SourceForge, WebCalendar 1.0.1
Remedy:
Upgrade to the latest version of WebCalendar (version 1.0.2 or later) when it is available from the WebCalendar Download Web page or to the current CVS available from the WebCalendar Web site. See References.
For Debian GNU/Linux:
Refer to DSA-1002-1 for patch, upgrade, or suggested workaround information. See References.
Consequences:
File Manipulation
References:
- Full-Disclosure Mailing List, Mon Nov 28 2005 - 10:47:22 CST, WebCalendar Multiple Vulnerabilities at http://archives.neohapsis.com/archives/fulldisclosure/2005-11/0951.html.
- ush.it - a beautiful place Web site, WebCalendar Multiple Vulnerabilities at http://www.ush.it/2005/11/28/webcalendar-multiple-vulnerabilities/.
- WebCalendar Download Web page, WebCalendar at http://www.k5n.us/webcalendar.php?topic=Download.
- WebCalendar Web site, Project: WebCalendar: Summary at http://sourceforge.net/projects/webcalendar/.
- BID-15608: WebCalendar Export_Handler.PHP File Corruption Vulnerability
- CVE-2005-3961: export_handler.php in WebCalendar 1.0.1 allows remote attackers to overwrite WebCalendar data files via a modified id parameter.
- DSA-1002: webcalendar -- several vulnerabilities
- FrSIRT/ADV-2005-2643: WebCalendar Remote SQL Injection and File Overwrite Vulnerabilities
- SA17784: WebCalendar SQL Injection and Local File Overwrite Vulnerabilities
Reported:
Nov 28, 2005
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