GuestBook Scripts PHP v1.5 - Multiple Web Vulnerabilites




Common Vulnerability Scoring System:

GuestBook Script PHP is a script that is very easy to install,
administer and use on your website.
Visitors to your website can leave comments and feedback. Also you can
use it for testimonials.
Features of GuestBook Script PHP:

    password protected administrator page
    converts easily to any language
    full control over the visual style
    simple one step installation
    easy to place on your webpage - copy and paste a single line of code
    select only the fields that you want to appear on the GuestBook form
    ability to set mandatory(required) fields on the GuestBook form
    each comment poster will be able to upload own photo (icon/avatar)
    rating stars option for the feedback
    emoticons support with show/hide option
    limit the number of characters in the comment area
    set the number of comments per page
    sort the order of entries
    create a list of words that will be banned from the GuestBook
    create a list of IP addresses that will be banned from using the
    prevention of HTML and javascript injections
    choose between two types of captcha antispam code - simple and reCaptcha
    100% stop spam by using the reCaptcha image
    different captcha image themes to suit your website colors
    ability to approve comments/feedback before they are viewed publicly
    edit email address where all new entries notifications will be sent to
    option to send   thank you message to the commenter after posting
    RSS Feed validated by W3C
    full source code supplied

Requirements: PHP 4.3 or higher and MySQL 3 or higher running on your
Current stable version of GuestBook Script PHP is 1.5

( Copy of the Vendor Homepage: http://www.guestbookscripts.com )

The Vulnerability Laboratory Research Team discovered multiple different
web vulnerabilites in GuestBook Scripts PHP 1.5 CMS.

2012-06-11:    Public or Non-Public Disclosure




Multiple SQL Injection vulnerabilities  are detected in the GuestBook
Scripts PHP 1.5 Content Management System.
The vulnerability allows an attacker (remote) or local low privileged
user account to inject/execute own sql
commands on the affected application dbms without user inter action.
Successful exploitation of the vulnerability
results in dbms & application compromise. The vulnerabilities are
located in the guestbook.php or admin.php files
and the bound parameters p, orderType & orderBy. The sql injection
vulnerabilities can be exploited by remote attackers without user
inter action & without privileged user account.

Vulnerable File(s):
            [+] guestbook.php
            [+] admin.php

Vulnerable Parameter(s):
            [+] orderType
            [+] p
            [+] orderBy

Multiple non persistent cross site scripting vulnerabilities are
detected in the GuestBook Scripts PHP 1.5 Content Management System.
The vulnerability allows remote attackers to hijack website customer,
moderator or admin sessions with high required user inter action
or local low privileged user account. The vulnerabilities are located in
the admin.php file with the bound vulnerable search, p &
ordertype parameters. Successful exploitation can result in account
steal, phishing & client-side content request manipulation.

Vulnerable File(s):
            [+] admin.php

Vulnerable Parameter(s):
            [+] search
            [+] p
            [+] orderType

Proof of Concept:
The SQL Injection vulnerabilities can be exploited by remote attackers
with and without privileged user account.
User inter action is not required for exploitation. For demonstration or

The persistent vulnerabilities can be exploited by remote attackers
without privileged user account & with low
required user inter action. For demonstration or reproduce ...[ASC/DESC]&search=&orderBy=[CROSS

The security risk of the sql injection vulnerabilities are estimated as

The security risk of the input validation vulnerabilities are estiamted
as low(+)

Vulnerability Laboratory [Research Team]  -    snup
(snup@vulnerability-lab.com) [http://snup1.blogspot.com]

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GuestBook Scripts PHP v1.5 – Multiple Vulnerabilities

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