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TITLE:
The Address Book Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA21694

VERIFY ADVISORY:
http://secunia.com/advisories/21694/

CRITICAL:
Highly critical

IMPACT:
Hijacking, Security Bypass, Cross Site Scripting, Manipulation of
data, Exposure of sensitive information, System access

WHERE:
>From remote

SOFTWARE:
The Address Book 1.x
http://secunia.com/product/11252/

DESCRIPTION:
Secunia Research has discovered some vulnerabilities and a security
issue in The Address Book, which can be exploited by malicious people
to bypass certain security restrictions, conduct cross-site scripting,
cross-site request forgery, script insertion, and SQL injection
attacks, disclose sensitive information, and compromise a vulnerable
system.

1) Input passed to the "lastname" and "firstname" parameters when
adding a new entry, the "passwordOld" and "passwordNew" parameters
when changing the password in users.php, the "id" parameter when
confirming a user in users.php, the "language" and "defaultLetter"
parameters when changing personal options in users.php, the "goTo"
and "search" parameters in search.php during searches, the
"groupAddName" parameter when adding a new group in save.php, and the
"newuserPass", "newuserType", and "newuserEmail" parameters when an
administrator adds a user in users.php isn't properly sanitised
before being used in a SQL query. This can be exploited to manipulate
SQL queries by injecting arbitrary SQL code.

Successful exploitation requires that "magic_quotes_gpc" is disabled
(except for the "id" parameter).

2) An input validation error exists in the picture upload handling
due to missing verification of the content of uploaded images. This
can be exploited to execute arbitrary HTML and script code in a
user's browser session in context of an affected site when a
specially crafted HTML document with the ".gif" or ".jpg" file
extension is viewed directly in the Microsoft Internet Explorer
browser.

3) Input passed to the "email" and "websites" parameters when adding
a new entry, and the "groupAddName" parameter when adding a new group
in save.php isn't properly sanitised before being used. This can be
exploited to inject arbitrary HTML and script code, which will be
executed in a user's browser session in context of an affected site
when the malicious user data is viewed.

Example:
Adding new entry: " onmouseover=[code] "

4) The problem is that user credentials are included in the exported
MySQL dump file generated by export.php which is accessible by normal
users. This can be exploited to disclose usernames and encrypted
passwords (MD5 sum).

5) Input passed to the "language" parameter when changing personal
options in users.php isn't properly verified, before it is used to
include files. This can be exploited to include arbitrary files from
local resources.

This can further be exploited to include arbitrary PHP code injected
into uploaded image files.

Example:
../mugshots/[file].gif%00

6) Input passed to the "errorMsg" parameter in index.php, and the
"goTo" and "search" parameters in search.php isn't properly sanitised
before being returned to the user. This can be exploited to execute
arbitrary HTML and script code in a user's browser session in context
of an affected site.

Successful exploitation requires that "register_globals" is enabled
(except for the "goTo" parameter).

7) The problem is that it is possible to register a new user account
in register.php even when "Allow User Self-Registration" has been
disabled by setting the "mode" parameter to "confirm".

8) An error exists in the picture upload handling due to the
application only validating the "Content-Type" header and not the
file extension. This can be exploited to upload a malicious PHP
script inside the web root.

9) An error exists due to the application allowing users to perform
certain actions via HTTP requests without performing any validity
checks to verify the user's request.

Example:
http://[host]/users.php?action=deleteuser&id=[id]

The vulnerabilities and the security issue are confirmed in version
1.04e. Other versions may also be affected.

SOLUTION:
Use another product.

PROVIDED AND/OR DISCOVERED BY:
Secunia Research

ORIGINAL ADVISORY:
Secunia Research:
http://secunia.com/secunia_research/2006-76/

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

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Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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