WebCalendar noSet variable overwrite
| webcalendar-noset-variable-overwrite (32832) |  Medium Risk |
Description:
WebCalendar could allow a remote attacker to overwrite variables, caused by improper validation of unspecified parameters prior to being used with the noSet variable set. A remote attacker could exploit this vulnerability to overwrite certain configuration variables, which could lead to remote PHP file include vulnerabilities on the affected system.
Platforms Affected:
- Debian, Debian Linux 3.1
- WebCalendar, WebCalendar 1.0.4 and prior
Remedy:
Upgrade to the latest version of WebCalendar (1.0.5 or later), available from SourceForge.net: Files. See References.
For Debian Linux:
Refer to DSA-1267-1 for patch, upgrade, or suggested workaround information. See References.
Consequences:
Data Manipulation
References:
- SourceForge.net: Files, WebCalendar - File Release Notes and Changelog - Release Name: 1.0.5 at http://sourceforge.net/project/shownotes.php?release_id=491130.
- BID-22834: WebCalendar Certain Variable Overwrite Vulnerability
- CVE-2007-1343: includes/functions.php in Craig Knudsen WebCalendar before 1.0.5 does not protect the noSet variable from external modification, which allows remote attackers to set arbitrary global variables via a URL with modified values in the noSet parameter, which leads to resultant vulnerabilities that probably include remote file inclusion and other issues.
- DSA-1267: webcalendar -- missing input sanitising
- SA24403: WebCalendar "noSet" Variable Overwrite Vulnerability
- VUPEN/ADV-2007-0851: WebCalendar noSet Parameter Handling Arbitrary Variable Overwrite Vulnerability
Reported:
Mar 04, 2007
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