PT-2013-55: Access Restrictions Bypassing in Huawei SGSN USN9810
(PT-2013-55) Positive Technologies Security Advisory
Access Restrictions Bypassing in Huawei SGSN USN9810
Huawei SGSN USN9810
Severity level: Medium
Impact: Information Disclosure
Access Vector: Remote
Base Score: 5.4
CVE: not assigned
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.
The specialists of the Positive Research center have detected anáAccess Restrictions Bypassingávulnerability in Huawei SGSN USN9810.
The platform does not provide sufficient entropy in session identifiers. This allows an attacker to brute force the current ID to bypass the authorization mechanisms and thus obtain access to the administrator session.
How to fix
Customers can contact the Huawei Technical Assistance Center (TAC) to request upgrades
29.05.2013 - Vendor gets vulnerability details
31.07.2013 - Vendor releases fixed version and details
05.02.2014 - Public disclosure
The vulnerability was detected by Timur Yunusov, Alexey Osipov and Gleb Gritsai, Positive Research Center (Positive Technologies Company)
Reports on the vulnerabilities previously discovered by Positive Research:
About Positive Technologies
Positive Technologies www.ptsecurity.com is among the key players in the IT security market in Russia.
The principal activities of the company include the development of integrated tools for information security monitoring (MaxPatrol); providing IT security consulting services and technical support; development of the Securitylab leading Russian information security portal.
Among the clients of Positive Technologies, there are more than 40 state enterprises, more than 50 banks and financial organizations, 20 telecommunication companies, more than 40 plant facilities, as well as IT, service and retail companies from Russia, the CIS countries, the Baltic States, China, Ecuador, Germany, Great Britain, Holland, Iran, Israel, Japan, Mexico, the Republic of South Africa, Thailand, Turkey, and the USA.
Positive Technologies is a team of highly skilled developers, advisers and experts with years of vast hands-on experience. The company specialists possess professional titles and certificates; they are the members of various international societies and are actively involved in the IT security field development.