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

At Black Hat, Mobile Devices Under The Microscope

Security researchers find growing numbers of security vulnerabilities in smartphones

BLACK HAT USA 2011 -- Las Vegas -- It's often said that hackers target the industry's most popular platforms and applications. As the smartphone phenomenon changes both consumer and corporate environments alike, then, it's not surprising that both hackers and security researchers were drawn to mobile devices here at this week's Black Hat conference.

Click here for more of Dark Reading's Black Hat articles.

The Black Hat conference featured an entire track -- five sessions -- on mobile vulnerabilities, each of which offered a look at newly discovered security flaws in devices, such as BlackBerrys, iPhones, and especially Androids.

"The mobile environment is becoming increasingly attractive to malware authors," said Neil Daswani, CTO of anti-malware service provider Dasient, in his presentation on mobile malware. "And the opportunities are only growing."

Harry Sverdlove, CTO of security software vendor Bit9, agreed. "Mobile is the wild, wild west for hackers right now," he said. "As mobile devices become the endpoint, that will become the most vulnerable spot."

Earlier this week, researchers from Lookout Mobile Security published the findings of a study that indicates Android users are two-and-a-half times as likely to encounter malware today than they were six months ago.

And at the show, a group of presenters from Lookout offered a look at the slow pace of security patching among Android-compatible device makers, and how that slow patch cycle could be exploited by attackers.

"In 2010, there were no [Common Vulnerabilities and Exposures] posted for mobile devices," noted Lookout's Tim Strazzere. "In 2011, there have already been six CVEs accepted."

And smartphone vendors are not helping by dragging their feet on security patching, the Lookout researchers said. While patches for emerging mobile device threats, such as Exploid and Rage Against the Cage, sometimes take 30 weeks or more, a few Android-compatible device makers have issued no security patches at all.

Daswani's presentation demonstrated the ability of malware authors to deliver their payloads using drive-by downloads from legitimate markets or applications, without needing to bait users into downloading a Trojan.

"Currently, most mobile attacks are Trojans," Daswani says, "but now [that] we know that drive-by downloads are possible, we expect things to shift in that direction."

Daswani's research also indicates that some 8.4 percent of Android applications studied are leaking personal information.

A session entitled "Hacking Androids for Profit" promised previously unreported vulnerabilities in the popular devices, but the session was postponed.

While the Android was the focus of most of the Black Hat sessions, Stefan Esser outlined vulnerabilities in the iPhone's iOS kernel that could be open for exploit.

"The iPhone user land is locked down very tightly by kernel-level protections," Esser said. "Therefore, any sophisticated attack has to include a kernel exploit in order to completely compromise the device."

Esser outlined ways that attackers could use previously disclosed iOS kernel vulnerabilities to exploit uninitialized kernel variables and create buffer overflows, among other exploits. He released a tool that allows users to selectively deactivate some iOS kernel security patches.

Have a comment on this story? Please click "Comment" below. If you'd like to contact Dark Reading's editors directly, send us a message. Tim Wilson is Editor in Chief and co-founder of Dark Reading.com, UBM Tech's online community for information security professionals. He is responsible for managing the site, assigning and editing content, and writing breaking news stories. Wilson has been recognized as one ... View Full Bio

 

Recommended Reading:

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
COVID-19: Latest Security News & Commentary
Dark Reading Staff 6/5/2020
Abandoned Apps May Pose Security Risk to Mobile Devices
Robert Lemos, Contributing Writer,  5/29/2020
How AI and Automation Can Help Bridge the Cybersecurity Talent Gap
Peter Barker, Chief Product Officer at ForgeRock,  6/1/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Write a Caption, Win a Starbucks Card! Click Here
Latest Comment: What? IT said I needed virus protection!
Current Issue
How Cybersecurity Incident Response Programs Work (and Why Some Don't)
This Tech Digest takes a look at the vital role cybersecurity incident response (IR) plays in managing cyber-risk within organizations. Download the Tech Digest today to find out how well-planned IR programs can detect intrusions, contain breaches, and help an organization restore normal operations.
Flash Poll
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2020-9074
PUBLISHED: 2020-06-05
Huawei Smartphones HONOR 20 PRO;Honor View 20;HONOR 20 have an improper handling of exceptional condition Vulnerability. A component cannot deal with an exception correctly. Attackers can exploit this vulnerability by sending malformed message. This could compromise normal service of affected phones...
CVE-2020-9859
PUBLISHED: 2020-06-05
A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 13.5.1 and iPadOS 13.5.1, macOS Catalina 10.15.5 Supplemental Update, tvOS 13.4.6, watchOS 6.2.6. An application may be able to execute arbitrary code with kernel privileges.
CVE-2020-11975
PUBLISHED: 2020-06-05
Apache Unomi allows conditions to use OGNL scripting which offers the possibility to call static Java classes from the JDK that could execute code with the permission level of the running Java process.
CVE-2020-12723
PUBLISHED: 2020-06-05
regcomp.c in Perl before 5.30.3 allows a buffer overflow via a crafted regular expression because of recursive S_study_chunk calls.
CVE-2020-1883
PUBLISHED: 2020-06-05
Huawei products NIP6800;Secospace USG6600;USG9500 have a memory leak vulnerability. An attacker with high privileges exploits this vulnerability by continuously performing specific operations. Successful exploitation of this vulnerability can cause service abnormal.