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Category:   Application (Calendar)  >   aspWebCalendar Vendors:   Full Revolution
aspWebCalendar Discloses Whether Account Names Exist to Remote Users
SecurityTracker Alert ID:  1011462
SecurityTracker URL:
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Sep 30 2004
Impact:   Disclosure of user information
Exploit Included:  Yes  

Description:   A vulnerability was reported in aspWebCalendar. A remote user can determine valid user account names on the target system.

Steven from reported that a remote user can attempt to login to aspWebCalendar to cause the application to disclose whether or not the specified username exists.

Impact:   A remote user can determine whether specified user account names exist or not.
Solution:   No solution was available at the time of this entry.
Vendor URL: (Links to External Site)
Cause:   Access control error, State error
Underlying OS:  Windows (Any)

Message History:   None.

 Source Message Contents

Subject:  Re: aspWebCalendar /aspWebAlbum: SQL injection

It might also be worthy noting that login attempts to aspWebCalendar will
disclose whether or not a username exists.  Since 'admin' is often not a
valid username, an attack can brute force attack the login module to find a
valid username.  At that point the calendar is vulnerability to the
mentioned SQL injection and/or a bruteforce password attack.


----- Original Message ----- 
From: "Pedro Sanches" <>
To: <>
Sent: Thursday, September 23, 2004 2:27 PM
Subject: aspWebCalendar /aspWebAlbum: SQL injection


"aspWebCalendar is an .asp (Active Server Pages) script that allows you to
easily create an online events calendar that supports multiple users. Easy
installation and usage are the key features of aspWebCalendar. The script
contains a text file with a few configuration variables that are used by the
script... Just change one of these variables, upload the files and you are
up and running."

"aspWebAlbum is an .asp (Active Server Pages) script that allows you to
easily create an online photo album or gallery simply by uploading images to
your server... the script will do the rest. Easy installation and usage are
the key features of aspWebAlbum. The script contains a text file with
several configuration variables that are used by the script... just change
two of these and you are up and running. To add images simply upload them to
your server, its that simple."

This information was taken from but the vendor of this
software is Full Revolution and the website can be found at

[2]The Problem

These two can run on SQL or Access databases, both coming right from the
box, and those who use the default sql file are vulnerable to injection,
alowing, f.e., an attacker to view the table contents by reading the asp
error messages.

(1) For the aspWebCalendar, in the login pages:


you can put this in the username field (leaving the password blank) to
extract the password for the 'admin' user, if it exists:

"  ' union select Cal_User_Password,1,1,1,1,1,1,1,1,1 from Cal_User where
Cal_User_UserName = 'admin'--  "

  (1.1) the 'eventid' field is vulnerable to sql injection too:

(2) For the aspWebAlbum, the login pages can be found at
"" and the problem is the same
(i'll use the same example as above) :

"' union select Gal_UserPassword,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 from
Gal_Users where Gal_UserUserName = 'admin' --"

(2.2) The 'cat' field is also a problem in this example:

At the moment all the SQL versions of this software seem to be affected.


(28/8/2004) vuln discovered
(29/8/2004) short note posted at forums
(15/9/2004) vendor notified, still no reply


(This is my first vulnerability disclosure so if there's a mistake here
don't hurt me too much :-) )


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