Redaxo 4.4 Cross Site Scripting

2012.07.26
Risk: Low
Local: No
Remote: Yes
CWE: CWE-79


CVSS Base Score: 4.3/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: None
Integrity impact: Partial
Availability impact: None

Advisory ID: HTB23098 Product: Redaxo Vendor: Redaxo team Vulnerable Version(s): 4.4 and probably prior Tested Version: 4.4 Vendor Notification: 4 July 2012 Vendor Patch: 23 July 2012 Public Disclosure: 25 July 2012 Vulnerability Type: Cross-Site Scripting (XSS) CVE Reference: CVE-2012-3869 CVSSv2 Base Score: 4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N) Solution Status: Fixed by Vendor Risk Level: Medium Discovered and Provided: High-Tech Bridge Security Research Lab ( https://www.htbridge.com/advisory/ ) ----------------------------------------------------------------------------------------------- Advisory Details: High-Tech Bridge Security Research Lab has discovered vulnerability in Redaxo, which can be exploited to perform Cross-Site Scripting (XSS) attacks. 1) Cross-Site Scripting (XSS) in Redaxo: CVE-2012-3869 1.1 Input passed via the "subpage" GET parameter to /redaxo/index.php (when "page" is set to "user" or "template") is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in administrator's browser session in context of affected website. The following PoC (Proof of Concept) demonstrate the vulnerability: http://[host]/redaxo/index.php?page=user&subpage=%22%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E http://[host]/redaxo/index.php?page=template&subpage=%22%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E ----------------------------------------------------------------------------------------------- Solution: Apply vendor's patch: http://www.redaxo.org/files/sicherheitsupdate_4_3_und_4_4.zip More Information: http://www.redaxo.org/de/download/sicherheitshinweise/ ----------------------------------------------------------------------------------------------- References: [1] High-Tech Bridge Advisory HTB23098 - https://www.htbridge.com/advisory/HTB23098 - Cross-Site Scripting (XSS) in Redaxo. [2] Redaxo - http://www.redaxo.org/ - PHP MySQL Open Source Content Management System. [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. ----------------------------------------------------------------------------------------------- Disclaimer: The information provided in this Advisory is provided "as is" and without any warranty of any kind. Details of this Advisory may be updated in order to provide as accurate information as possible. The latest version of the Advisory is available on web page [1] in the References.

References:

http://www.redaxo.org/files/sicherheitsupdate_4_3_und_4_4.zip


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