Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Mobile

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
HackerOne Drops Mobile Voting App Vendor Voatz
Dark Reading Staff 3/30/2020
Limited-Time Free Offers to Secure the Enterprise Amid COVID-19
Curtis Franklin Jr., Senior Editor at Dark Reading,  3/31/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Current Issue
6 Emerging Cyber Threats That Enterprises Face in 2020
This Tech Digest gives an in-depth look at six emerging cyber threats that enterprises could face in 2020. Download your copy today!
Flash Poll
State of Cybersecurity Incident Response
State of Cybersecurity Incident Response
Data breaches and regulations have forced organizations to pay closer attention to the security incident response function. However, security leaders may be overestimating their ability to detect and respond to security incidents. Read this report to find out more.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2020-11565
PUBLISHED: 2020-04-06
An issue was discovered in the Linux kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing, aka CID-aa9f7d5172fa.
CVE-2020-11558
PUBLISHED: 2020-04-05
An issue was discovered in libgpac.a in GPAC 0.8.0, as demonstrated by MP4Box. audio_sample_entry_Read in isomedia/box_code_base.c does not properly decide when to make gf_isom_box_del calls. This leads to various use-after-free outcomes involving mdia_Read, gf_isom_delete_movie, and gf_isom_parse_m...
CVE-2020-11547
PUBLISHED: 2020-04-05
PRTG Network Monitor before 20.1.57.1745 allows remote unauthenticated attackers to obtain information about probes running or the server itself (CPU usage, memory, Windows version, and internal statistics) via an HTTP request, as demonstrated by type=probes to login.htm or index.htm.
CVE-2020-11548
PUBLISHED: 2020-04-05
The Search Meter plugin through 2.13.2 for WordPress allows user input introduced in the search bar to be any formula. The attacker could achieve remote code execution via CSV injection if a wp-admin/index.php?page=search-meter Export is performed.
CVE-2020-11542
PUBLISHED: 2020-04-04
3xLOGIC Infinias eIDC32 2.213 devices with Web 1.107 allow Authentication Bypass via CMD.HTM?CMD= because authentication depends on the client side's interpretation of the <KEY>MYKEY</KEY> substring.