BadBlue XSS/Information Disclosure Vulnerabilities

2007.10.18
Risk: Low
Local: No
Remote: Yes
CWE: CWE-79


CVSS Base Score: 5/10
Impact Subscore: 2.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Partial
Integrity impact: None
Availability impact: None

BadBlue is a P2P/Web server offered for Microsoft Windows operating systems by Working Resources. It has a bad security record -- file disclosure, remote administration, denials of service, buffer overflows, directory traversals, and more cross-site scripting flaws than I care to count. We can add information disclosure to that list, and add a new XSS hole to the count. * soinfo.php - Massive Information Leak If running with PHP enabled, the BadBlue server's default soinfo.php script can be made to cough up substantial amounts of information, including ODBC passwords: -- soinfo.php -- <?php phpinfo(); ?> -- soinfo.php -- Yielding this data to an attacker, in combination with access to the database allows for a compromise of the database. * Cross-Site Scripting in ext.dll Search Page -- Again I've discovered another flaw in BadBlue's search engine allowing for cross-site scripting: ');alert(document.cookie);// ')" style="left:expression(eval('alert(document.cookie)'))"> Either of these two queries will execute the alert(document.cookie) command. You get the idea. :-)


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