SecurityBrief New Zealand logo
New Zealand's leading source of cybersecurity and cyber-attack news
Story image

Android 'Toast' overlay vulnerability affects all versions prior to 8.0

By Sara Barker
Mon 11 Sep 2017
FYI, this story is more than a year old

Android users are being urged to apply any security patches for their devices, after security researchers discovered a ‘high severity’ vulnerability in Toast.

The Android Toast overlay exploits all versions of Android prior to the latest version, Android Oreo. According to researchers at Unit 42, the vulnerability increases the likeliness of an overlay attack, although they are not aware of any attacks that have used the vulnerability.

Overlay attacks are already well-known on Android.

“An “overlay attack” is an attack where an attacker’s app draws a window over (or “overlays”) other windows and apps running on the device. When done successfully, this can enable an attacker to convince the user he or she is clicking one window when, in fact, he or she is actually clicking another window,” Unit 42 researcher Christopher Budd explains.

They are used to install malicious software on an Android device in order to control or ‘brick’ it, steal information, demand ransoms or do all of those things in one swoop.

Overlay attacks can also be used to create denial-of-services on the device by opening windows that cannot be closed – a key use for the way ransomware attacks are conducted.

Previously, it was believed that malicious apps that attempt to conduct overlay attacks had to explicitly request the ‘draw on top’ permission from the user, and the apps must be installed through Google Play.

Because of these two factors, overlay attacks were previously ruled a non-serious threat. However, researchers say that overlay attacks can occur without those two conditions. 

Android devices are built with a feature called ‘Toast’, which is a notification that pops up on the screen. It is generally used to show notifications and messages over apps.

Toast does not require the same permissions as other Android window types and it is also able to overlay the entire screen.

“If a malicious app were to utilize this new vulnerability, our researchers have found it could carry out an overlay attack simply by being installed on the device. In particular, this means that malicious apps from websites and app stores other than Google Play can carry out overlay attacks. It’s important to note that apps from websites and app stores other than Google Play form a significant source of Android malware worldwide,” Budd explains.

While Budd says that Android Oreo is immune from the vulnerability, but all Android users before 8.0 should contact their handset maker or mobile carrier for the latest updates.

“Of course, one of the best protections against malicious apps is to get your Android apps only from Google Play, as the Android Security Team aggressively screens against malicious apps and keeps them out of the store in the first place,” Budd concludes.

Related stories
Top stories
Story image
Phishing
Vishing attacks reach all time high - Agari and PhishLabs
"Hybrid vishing campaigns continue to generate stunning numbers, representing 26.1% of total share in volume so far in 2022."
Story image
Cybersecurity
 Asia Pacific plagued by sophisticated bad bots - report
The three most common bot attacks were account takeover, content or price scraping, and scalping to obtain limited-availability items.
Story image
Data Protection
Information management capabilities to meet privacy requirements
Organisations with customers or operations across more than one country face a spate of new and proposed privacy and data protection laws.
Story image
Ransomware
CERT NZ releases first Cyber Security Insights for 2022
CERT NZ has released Quarter One: Cyber Security Insights 2022, which offers an overview of reports about cybersecurity incidents affecting New Zealanders.
Story image
Ransomware
APAC organisations fail to disclose ransomware breaches
85% of organisations in APAC were breached by ransomware at least once in the past five years, but only 28% publicly disclosed the incident.
Story image
Microsoft
PwC NZ unveils new Cloud Security Operations Center
PwC New Zealand has unveiled its new Cloud Security Operations Center for the entire Microsoft technology stack.
Story image
SaaS
Rubrik Security Cloud marks 'next frontier' in cybersecurity
"The next frontier in cybersecurity pairs the investments in infrastructure security with data security giving companies security from the point of data."
Story image
Malware
New vulnerabilities found in Nuspire’s Q1 2022 Threat Report
“Threat actors are quickly adjusting their tactics and these exploits tend to get industry attention, but the threat posed by older and attacks still persists."
Story image
Data Protection
Barracuda launches new capabilities for API Protection
"Every business needs this type of critical protection against API vulnerabilities and automated bot attacks," Barracuda says.
Story image
Employment
Tech job moves - Forcepoint, Malwarebytes, SolarWinds & VMware
We round up all job appointments from May 13-20, 2022, in one place to keep you updated with the latest from across the tech industries.
Story image
Training
Infosec unveils role-guided cybersecurity training roadmaps 
Infosec Skills Roles maps hands-on training and certifications to the 12 most in-demand cybersecurity roles to maximise training efficiency.
Story image
New Relic
New Relic launches vulnerability management platform
New Relic has introduced New Relic Vulnerability Management to help organisations find and address security risks faster and with greater precision.
Story image
SaaS
Maintaining secure systems with expectations of flexible work
Most office workers feel they've proved they can work successfully from home, and as much as employers try, things aren't going back to the way they were anytime soon.
Story image
Silver Peak
The path to an adaptive, modern network
Managing and securing the network looks different than it did just two years ago—especially given that most of these networks are made up of multi-generations of infrastructure stitched together over time.
Story image
Microsoft
Global cybersecurity insurance market worth $11.5b this year
Future Market Insights finds the cybersecurity insurance market is expected to reach USD$11.5 billion in 2022, growing to $61.2 billion in 10 years.
Story image
Ransomware
Employees on the frontline of cyber defense - report
In the first quarter of 2022, employees found themselves more than ever at the frontline of cyber defense, according to a new report from Kroll. 
Story image
Cybersecurity
More than 40% of banks worried about cloud security - report
Publicis Sapient's new report finds security and the lack of cloud skills and internal understanding of business benefits are big obstacles for banks moving to the cloud.
Story image
Ransomware
A third of companies paying ransom don’t recover data - report
Veeam's report finds 76% of businesses who are victims of cyberattacks paid the ransom to recover data, but a third were still unable to get their information back.
Story image
Kubernetes
Sysdig unveils new Kubernetes troubleshooting and cloud innovations
Sysdig has introduced two new innovations that look to help bolster cloud services and simplify Kubernetes troubleshooting.
Story image
Migration
Let’s clear the cloud visibility haze with app awareness
Increasingly, organisations are heading for the cloud, initiating new born-in-the-cloud architectures and migrating existing applications via ‘lift and shift’ or refactoring.
Story image
Cloud Security
Aqua Security createa unified scanner for cloud native security
“By integrating more cloud native scanning targets into Trivy, such as Kubernetes, we are simplifying cloud native security."
Story image
Cybersecurity
NCSC advisory highlights poor security configurations
The GCSB's National Cyber Security Centre (NCSC) has released a cyber security advisory identifying commonly exploited controls and practices.
Story image
Cybersecurity
Comcast to use ThreatQuotient for cybersecurity operations
Comcast, the parent company of NBC Universal and SKY Group, has chosen ThreatQ Platform and ThreatQ Investigations to meet their cybersecurity needs.
Story image
Ponemon Institute
Email revealed to be riskiest channel for data loss
More than half (60%) of organisations experienced data loss or exfiltration caused by an employee mistake on email in the last 12 months.
Story image
Ransomware
APAC ranks third-highest region targeted by ransomware
Asia Pacific has ranked the third-highest region globally to be targeted by ransomware, according to cybersecurity firm Group-IB.
Story image
Customer experience
Gartner recognises Okta for abilities in Access Management
Okta has announced it has been recognised as a Customers' Choice for the fourth time in a row in the Gartner Peer Insights "Voice of the Customer" report.
Story image
Cybersecurity
Cybersecurity prompts upgrade for 1.3 billion electricity meters
ABI Research finds Advanced Metering Infrastructure (AMI) and cybersecurity concerns are prompting the upgrade of 1.3 billion electricity meters by 2027.
Booster
Booster Innovation Fund. A fund of Kiwi ingenuity – for Kiwi investors.
Link image
Story image
Digital Transformation
How to modernise legacy apps without compromising security
At a time when digital transformation has become central to business, even the most important applications come with a ‘use-by’ date.
Story image
Nozomi Networks
Nozomi Networks, Siemens reveal software integration
Nozomi Networks and Siemens have extended their partnership by embedding Nozomi Networks’ software into the Siemens Scalance LPE local processing engine.
Story image
Artificial Intelligence
How to ensure ethical deployment of AI implementations
The increase in automation and machine technology such as AI and machine learning has unlocked a whole new level of scale and service to organisations. 
Story image
ChildFund
ChildFund launches new campaign to protect children online
ChildFund says WEB Safe & Wise aims to protect children from sexual exploitation and abuse online while also empowering them to become digitally savvy. 
Story image
Qualys
Qualys updates Cloud Platform solution with rapid remediation
The new update is designed to enable organisations to fix asset misconfigurations, patch OS and third-party applications, and deploy custom software.
Story image
Cybersecurity
BlackBerry offers Kaspersky replacement cybersecurity for the channel
BlackBerry advises that users of Kaspersky software in Australia and New Zealand undertake a rigorous risk analysis of their current security posture.
Story image
Artificial Intelligence
Gartner reveals top three tech trends for banks this year
Gartner says generative artificial intelligence, autonomic systems and privacy-enhancing computation are gaining traction in banking and investment services.
Story image
Surveillance
i-PRO releases smallest AI-based surveillance camera on the market
The new i-PRO mini network camera is now available, with a pocket-sized form factor and full AI analytics functionality.
Story image
Apricorn
Data backup plans inadequate, data still at risk - study
The Apricorn 2022 Global IT Security Survey revealed that while the majority organisations have data backup plans in place, data for many are at risk.
Story image
Cyber attacks
Devastating cyber attacks expected to hit energy sector
Energy executives anticipate life, property, and environment-compromising cyber attacks on the sector within the next two years.
Darktrace
Threat actors are exploiting weaknesses in interconnected IT/OT ecosystems. Darktrace illuminates your entire business and takes targeted action to stop emerging attacks.
Link image
Story image
Vectra AI
Understanding the weight on security leader’s shoulders, and how to shift it
Millions of dollars of government funding and internal budgets are being funnelled into cybersecurity to build resilience against sophisticated threats, indicating how serious this issue has become.
Story image
Supply chain
Jetstack promotes better security with supply chain toolkit
The web-based resource is designed to help organisations evaluate and plan the crucial steps they need to establish effective software supply chain security.
Story image
Cybersecurity
Noname Security partners with Netpoleon to target API issues
Specialist API security firm Noname Security has appointed Netpoleon as its distributor in Australia and New Zealand.
Story image
Sift
Sift shares crucial advice for preventing serious ATO breaches
Are you or your business struggling with Account Takeover Fraud (ATO)? One of the latest ebooks from Sift can provide readers with the tools and expertise to help launch them into the new era of account security.
Story image
Managed service provider
Barracuda MSP Day 2022 highlights MSP opportunities
Barracuda Networks has released a report showing global services-related MSP revenue is set to increase by more than a third in 2022 compared to 2021.