PT-2013-54: Access Restrictions Bypassing in Huawei SGSN USN9810

Vulnerable platform

Huawei SGSN USN9810

Link:
http://www.huawei.com/

Severity level

Severity level: Medium
Impact: Information Disclosure
Access Vector: Remote

CVSS v2:
Base Score: 4.0
Vector: (AV:N/AC:L/Au:S/C:P/I:N/A:N)

CVE: not assigned

Platform description

Huawei SGSN USN9810 is a unified service node designed by Huawei. It can be used in the 2.5G General Packet Radio Service (GPRS) system, 3G Universal Mobile Telecommunications System (UMTS), and evolved packet core (EPC) system.

Vulnerability description

The specialists of the Positive Research center have detected an Access Restrictions Bypassing vulnerability in Huawei SGSN USN9810.

The application does not sufficiently check the user’s authorization in the system. This allows an authorized attacker to obtain access to various administrative procedures and features of the system.

How to fix

Customers can contact the Huawei Technical Assistance Center (TAC) to request upgrades

Advisory status

29.05.2013 - Vendor gets vulnerability details
31.07.2013 - Vendor releases fixed version and details
05.02.2014 - Public disclosure

Credits

The vulnerability was detected by Timur Yunusov, Alexey Osipov and Gleb Gritsai, Positive Research Center (Positive Technologies Company)

References

http://en.securitylab.ru/lab/PT-2013-54

Reports on the vulnerabilities previously discovered by Positive Research:

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

Threatscape
4G and 5G are not ready for smart cities