Mobile

7/5/2017
12:20 PM
50%
50%

Researchers Build Firewall to Deflect SS7 Attacks

Security researchers will release an open-source SS7 firewall at Black Hat USA that aims to bolster security of mobile operators' core networks.

Mobile security software can do little to protect end users and BYOD workers when Signaling System 7 (SS7) vulnerabilities are exploited in mobile operotors' core mobile networks, according to security researchers.

SS7 vulnerabilities, which can allow cybercriminals to hijack two-factor authentication codes texted to mobile phones, read and redirect text messages, eavesdrop on phone calls, and track a phone's location, have existed since 2014.

But researchers from P1 Security have built a firewall that defends against such SS7 attacks. Martin Kacer, P1's core network security researcher, and Philippe Langlois, P1's CEO, will release the homegrown open-source SS7 firewall technology at Black Hat USA in Las Vegas later this month.

Black Hat USA returns to the fabulous Mandalay Bay in Las Vegas, Nevada, July 22-27, 2017. Click for information on the conference schedule and to register.

 

"Two years ago, it was very expensive and hard to deploy an SS7 firewall," Kacer says. "But now there is a new open-source SS7 firewall that will make it less expensive" for mobile operators, he says.

Langlois, meanwhile, notes that the firewall will allow operators to encrypt signalization and authenticate connecting mobile operators using the SS7 and Diameter protocol, whereas before it was not possible to easily enable confidentiality and integrity protection for the signalization between operators.

This is designed to prevent attackers from sniffing the traffic as it flies between the mobile core networks. It also prevents spoofing, where attackers impersonate networks, Kacer says.

Not only is the open-source firewall designed to take standard firewall measures against cyberattacks, but it's also configured to take an advanced defensive posture as well. Attackers who send an illegal signalization in the hope of identifying the location of the cellphone will instead have it redirected to a honeypot, for instance, which will then send a fake location to the attacker, Kacer says.

P1's Kacer and Langlois in their SS7 Attacker Heaven Turns Into Riot: How To Make Nation-State And Intelligence Attackers' Lives Much Harder On Mobile Networks talk at Black Hat also plan to delve into the current status of SS7 mobile vulnerabilities, potential solutions, explore advanced SS7 attacks, and defenses relating to the SS7 network vulnerabilities.

Related Content:

Dawn Kawamoto is an Associate Editor for Dark Reading, where she covers cybersecurity news and trends. She is an award-winning journalist who has written and edited technology, management, leadership, career, finance, and innovation stories for such publications as CNET's ... View Full Bio

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
Data Privacy Careers Are Helping to Close the IT Gender Gap
Dana Simberkoff, Chief Risk, Privacy, and Information Security Officer, AvePoint, Inc.,  8/20/2018
Intel Reveals New Spectre-Like Vulnerability
Curtis Franklin Jr., Senior Editor at Dark Reading,  8/15/2018
Australian Teen Hacked Apple Network
Dark Reading Staff 8/17/2018
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
Flash Poll
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2018-15660
PUBLISHED: 2018-08-21
** DISPUTED ** An issue was discovered in the Ola Money (aka com.olacabs.olamoney) application 1.9.0 for Android. If an attacker controls an application with accessibility permissions, then the attacker can read certain Ola Money data such as a credit card number, expiration date, bank account numbe...
CVE-2018-15661
PUBLISHED: 2018-08-21
** DISPUTED ** An issue was discovered in the Ola Money (aka com.olacabs.olamoney) application 1.9.0 for Android. If an attacker controls an application with accessibility permissions and the ability to read SMS messages, then the Forgot Password screen can be used to bypass authentication. NOTE: th...
CVE-2018-15481
PUBLISHED: 2018-08-21
Improper input sanitization within the restricted administration shell on UCOPIA Wireless Appliance devices using firmware version 5.1.x before 5.1.13 allows authenticated remote attackers to escape the shell and escalate their privileges by adding a LocalCommand to the SSH configuration file in the...
CVE-2018-15528
PUBLISHED: 2018-08-21
Reflected Cross-Site Scripting exists in the Java System Solutions SSO plugin 4.0.13.1 for BMC MyIT. A remote attacker can abuse this issue to inject client-side scripts into the "select_sso()" function. The payload is triggered when the victim opens a prepared /ux/jss-sso/arslogin?[XSS] l...
CVE-2018-15533
PUBLISHED: 2018-08-21
A reflected cross-site scripting vulnerability exists in Geutebrueck re_porter 16 before 7.8.974.20 by appending a query string to /modifychannel/exec or /images/*.png on TCP port 12005.