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and subject line Bug#296280: fixed in webcalendar 0.9.45-3
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From: Rob Funk <[EMAIL PROTECTED]>
To: Debian Bug Tracking System <[EMAIL PROTECTED]>
Subject: Remote SQL injection in login/validate
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Date: Mon, 21 Feb 2005 09:05:00 -0500
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Package: webcalendar
Version: 0.9.45-2
Severity: grave
Tags: security patch
Justification: user security hole
Upstream reports a security hole:
http://sourceforge.net/tracker/index.php?func=detail&aid=1121329&group_id=3870&atid=303870
| There is a security hole in WebCalendar 0.9.45 and
| earlier that can allow a malicious user to issue SQL
| commands to affect your database. The user could
| insert data, delete data or drop tables. The malicious
| user does not need to have a valid WebCalendar login.
|
| This security issue does not affect sites using
| http-based authentication for WebCalendar or sites
| running in single-user mode. It only affects installs
| using web-based authentication and running in
| multi-user mode.
Patch from upstream:
*** includes/validate.php.orig Fri Nov 5 21:43:38 2004
--- includes/validate.php Sat Feb 12 08:32:45 2005
***************
*** 38,43 ****
--- 38,55 ----
$login_pw = split('\|', decode_string ($encoded_login));
$login = $login_pw[0];
$cryptpw = $login_pw[1];
+ // Security fix. Don't allow certain types of characters in
+ // the login. WebCalendar does not escape the login name in
+ // SQL requests. So, if the user were able to set the login
+ // name to be "x';drop table u;",
+ // they may be able to affect the database.
+ if ( ! empty ( $login ) ) {
+ if ( $login != addslashes ( $login ) ) {
+ echo "Illegal characters in login " .
+ "<tt>" . htmlentities ( $login ) . "</tt>";
+ exit;
+ }
+ }
// make sure we are connected to the database for password check
$c = dbi_connect ( $db_host, $db_login, $db_password, $db_database
);
if ( ! $c ) {
*** login.php.orig Tue Nov 23 02:55:16 2004
--- login.php Sat Feb 12 08:21:09 2005
***************
*** 62,67 ****
--- 62,71 ----
$login = stripslashes ( $login );
}
$login = trim ( $login );
+ if ( $login != addslashes ( $login ) ) {
+ echo "Illegal characters in login";
+ exit;
+ }
if ( user_valid_login ( $login, $password ) ) {
user_load_variables ( $login, "" );
// set login to expire in 365 days
-- System Information:
Debian Release: 3.1
APT prefers testing
APT policy: (500, 'testing'), (50, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.8-1-686-smp
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1)
Versions of packages webcalendar depends on:
ii apache [httpd] 1.3.33-3 versatile, high-performance HTTP s
ii debconf [debconf-2.0] 1.4.30.11 Debian configuration management sy
ii mysql-server 4.0.23-3 mysql database server binaries
ii php4 4:4.3.10-2 server-side, HTML-embedded scripti
ii php4-cli 4:4.3.10-2 command-line interpreter for the p
ii php4-mysql 4:4.3.10-2 MySQL module for php4
-- debconf information:
* webcalendar/conf/db_host: localhost
* webcalendar/note/sql_install:
webcalendar/status/db_installed: false
* webcalendar/note/admin_user:
* webcalendar/conf/db_persistent: true
webcalendar/conf/single_user_login:
* webcalendar/conf/single_user_mode: false
* webcalendar/conf/db_database: webcalendar
* webcalendar/conf/db_type: mysql
* webcalendar/conf/db_login: webcalendar
* webcalendar/conf/db_password: Zeeph9po
* webcalendar/conf/use_http_auth: false
* webcalendar/status/debconf_managed: true
---------------------------------------
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From: Tim Peeler <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
X-Katie: $Revision: 1.55 $
Subject: Bug#296280: fixed in webcalendar 0.9.45-3
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Date: Mon, 21 Feb 2005 16:47:39 -0500
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Source: webcalendar
Source-Version: 0.9.45-3
We believe that the bug you reported is fixed in the latest version of
webcalendar, which is due to be installed in the Debian FTP archive:
webcalendar_0.9.45-3.diff.gz
to pool/main/w/webcalendar/webcalendar_0.9.45-3.diff.gz
webcalendar_0.9.45-3.dsc
to pool/main/w/webcalendar/webcalendar_0.9.45-3.dsc
webcalendar_0.9.45-3_all.deb
to pool/main/w/webcalendar/webcalendar_0.9.45-3_all.deb
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [EMAIL PROTECTED],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Tim Peeler <[EMAIL PROTECTED]> (supplier of updated webcalendar package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [EMAIL PROTECTED])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Format: 1.7
Date: Mon, 21 Feb 2005 16:31:17 -0500
Source: webcalendar
Binary: webcalendar
Architecture: source all
Version: 0.9.45-3
Distribution: unstable
Urgency: low
Maintainer: Tim Peeler <[EMAIL PROTECTED]>
Changed-By: Tim Peeler <[EMAIL PROTECTED]>
Description:
webcalendar - PHP-Based multi-user calendar
Closes: 291590 295960 296280
Changes:
webcalendar (0.9.45-3) unstable; urgency=low
.
* removed mysql-server or postgres requirements (closes: #291590)
* added patch to fix sql injection bug CAN-2005-0474 (closes: #295960,
#296280)
Files:
f4b6881c1afe86b686fe27c2b617aef4 595 web optional webcalendar_0.9.45-3.dsc
f5049a07e2fd24e91795de74518aec74 8388 web optional webcalendar_0.9.45-3.diff.gz
c21c6f6c7e0617bdf592db4585073a40 627652 web optional
webcalendar_0.9.45-3_all.deb
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