PT-2013-62: Internal Network Resources Access in Web Viewer for Samsung DVR

Vulnerable software

Web Viewer for Samsung DVR

Link:
https://www.samsung-security.com/products/video-recording-and-management/dvr.aspx

Severity level

Severity level: High
Impact: Internal network resources access; Access rights to view and control the cameras, add/manage/delete users
Access Vector: Remote

CVSS v2:
Base Score: 7.6
Vector: (AV:N/AC:H/Au:N/C:C/I:C/A:C)

CVE: CVE-2013-3586

Software description

Web Viewer for Samsung DVR allows you to get remote access to security cameras.

Vulnerability description

The specialists of the Positive Research center have detected "Internal Network Resources Access" vulnerability in Web Viewer for Samsung DVR.

The vulnerability allows attackers to get unauthorized access to view and control the cameras via unsafe cookies parsing. If an attacker sends the request with set cookie 'SessionID' to server with Web Viewer for Samsung DVR, web-server will provide access to internal pages, including page with users credentials.

How to fix

No solution is available

Workaround

Restrict access to the Samsung Web Viewer for Samsung DVR interface
Restrict access to the Samsung DVR Web Viewer interface to trusted networks. If there is such a possibility, configure management and transit networks for separate VLANs,  or restrict access to the device using IP access lists.

Advisory status

10.04.2013 - Vendor is notified
30.05.2013 - Vulnerability details were sent to CERT
30.08.2013 - Public disclosure

Credits

The vulnerability was detected by Andrey Bezborodov, Positive Research Center (Positive Technologies Company)

References

http://en.securitylab.ru/lab/PT-2013-62
http://www.kb.cert.org/vuls/id/882286

Reports on the vulnerabilities previously discovered by Positive Research:

http://ptsecurity.com/research/advisory/
http://en.securitylab.ru/lab/

Threatscape