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Cross-Site Scripting (XSS) in Feng Office

Advisory ID:HTB23174
Product:Feng Office
Vendor:Secure Data SRL
Vulnerable Versions:2.3.2-rc and probably prior
Tested Version:2.3.2-rc
Advisory Publication:September 18, 2013 [without technical details]
Vendor Notification:September 18, 2013
Public Disclosure:October 9, 2013
Latest Update:October 9, 2013
Vulnerability Type:Cross-Site Scripting [CWE-79]
CVE Reference:CVE-2013-5744
Risk Level:Medium
CVSSv2 Base Score:4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Solution Status:Solution Available
Discovered and Provided:High-Tech Bridge Security Research Lab
 

Advisory Details:

High-Tech Bridge Security Research Lab discovered vulnerability in Feng Office, which can be exploited to perform Cross-Site Scripting (XSS) attacks against users of vulnerable application.

1) Cross-Site Scripting (XSS) in Feng Office: CVE-2013-5744
1.1 The vulnerability exists due to insufficient sanitisation of user-supplied data in "ref_[any]" HTTP GET parameter passed to "/index.php" script. A remote attacker can trick a logged-in user to open a specially crafted link and execute arbitrary HTML and script code in browser in context of the vulnerable website.
The exploitation example below uses JavaScript "alert()" function to display user's cookies:
http://[host]/index.php?c=access&a=login&ref_abc=%22%3E%3Cscript%3Ealert%28d ocument.cookie%29;%3C/script%3E

How to Detect Cross-Site Scripting Vulnerabilities
Website Security Test
  • GDPR & PCI DSS Test
  • Website CMS Security Test
  • CSP & HTTP Headers Check
  • WordPress & Drupal Scanning
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Solution:
Vendor did not reply to 3 notifications by email, 1 notification by twitter, 1 notification by contact form on website, 1 forum thread, 1 support ticket. Currently we are not aware of any official solution for this vulnerability.

Unofficial patch was developed by High-Tech Bridge Security Research Lab and is available here: https://www.immuniweb.com/advisory/HTB23174-patch.zip


References:
[1] High-Tech Bridge Advisory HTB23174 - https://www.immuniweb.com/advisory/HTB23174 - Cross-Site Scripting (XSS) in Feng Office.
[2] Feng Office - http://www.fengoffice.com - Feng Office is a Web-based Software that integrates Project Management, Client Relationship Management, Billing, Financing, among other features that help you efficiently run your Professional Services Business.
[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.
[5] ImmuniWeb® - Leveraging the power of machine-learning and genius of human brain to deliver the most advanced web application security and penetration testing.
[6] ImmuniWeb® SSLScan - Test your servers for security and compliance with PCI DSS, HIPAA and NIST.

Have additional information to submit?
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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