Android is an operating system for mobile devices such as smartphones and tablet computers. It is developed by the Open Handset Alliance led by Google.

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Android app downgrading TLS protocol to SSL 3.0

I performed vulnerability testing of some Android mobile applications I helped develop and I noticed some odd behavior. The applications used the default Android 5.0.2 cipher suite list that includes ...
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2answers
112 views

Does Android have sufficient app sandboxing?

In a previous question in InfoSec, I asked about how to determine the safety of a sideloaded Android app that requires root permissions. Now I would like to ask a related, but different question: Is ...
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0answers
99 views

VPN Server + Anonymity + Adblock for mobile Devices

In order to improve private security and anonymity while browsing the web on my mobile devices I wanted to tunnel all traffic to my own server via VPN and use a proxy software to filter unwanted ...
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4answers
491 views

Can visiting a malicious website infect an iOS or Android device?

Can visiting a malicious website infect an iOS or Android device? We're talking about visiting such sites via a browser. We're not talking about downloading any malicious apps. Thanks!
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1answer
74 views

Security tradeoffs while designing a mobile Web Service API

I'm not a security expert but I want to ask about tradeoffs in a web service API I'm designing for mobile apps. It is an API which tracks users' locations so yes, the data is reasonably sensitive. ...
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2answers
73 views

Determining safety of Android APK executable that requires root

On my request, a developer gave me a new version of his Android app to test. The app requires root permissions. I do not know the developer personally. I have no specific reasons to trust or ...
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1answer
50 views

Intercept Android's http/https traffic with shell access [closed]

Assuming you have a shell access on a rooted Android device. Let's say the shell was given upon an exploitation, eg. Android Webview vulnerability. The question is what is the best way to intercept ...
4
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2answers
276 views

Is Google API Key a sensitive information that needs to be protected?

I'm making use of google API for location (in Android, iOS apps).. Can the key be hardcoded? Or should it be protected? If It's sensitive, why is it sensitive and how can attackers exploit this?
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4answers
3k views

How does Android L achieve strong encryption with a low entropy passphrase?

After upgrading to Android L on my Nexus 5, I was pleased to find that I can enable encryption using a pattern as the passphrase. However, it soon got me thinking. I'm guessing the encryption key is ...
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1answer
53 views

Downloading and updating the software via Playstore

I'm using android play store to download and update software for my phone. And some times its automatically updated as by settings.The play store is linked to one of my Gmail account. Here my question ...
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0answers
36 views

What can Android Antivirus apps really do? [duplicate]

I am studiying about android development and given the permission restriction between apps and isolation that the operating system itself imposes, I was wondering what can an antivirus app distributed ...
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1answer
72 views

Android app using FTP

I have done some android programming (self taught). I have started working on an app idea. The idea is pretty much that people with the app installed can post pictures/videos and text which can be ...
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1answer
1k views

Is it possible to store an android apk in SIM card and install it from there?

I suspect somebody has installed a spyware in my android smartphone. I have done factory reset, which is supposed to uninstall all apps in SD card and internal memory. I am curious about following. ...
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0answers
49 views

Android 5 encryption

There's been lots of talk about the allegedly improved encryption in Android 5. Some questions about this: What is the maximum length for passphrases? (i.e. is it still limited to 16 characters?) ...
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votes
3answers
489 views

How do I know if Google keyboard input is safe for use?

I wanted to send out a message containing some non-Latin characters on my Android phone. When I tried to change the keyboard input method, a warning came out: ATTENTION This input method may be ...
2
votes
1answer
360 views

Intercepting HTTPS Android app traffic

I'm trying to intercept Android application traffic from my Android phone....Basically what worked before was that i had simply installed fiddler proxy on my PC, exported the root certificate (and ...
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0answers
304 views

Codeigniter RESTful web api creation for mobile and web applications general guidelines

I'm having application with running good in codeigniter, mysql and jquery. Currently we are planning to evaluate our web application with mobile application. So we planned to develop web application, ...
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1answer
77 views

Simple way to secure a webservice used by mobile clients

I am currently working on a RESTful webservice with Java that is used by mobile devices, namely Android and iOS, using a framework that allows me to abstract from both. I'm adding this information ...
2
votes
1answer
134 views

Java org.xmlpull.v1.XmlPullParser and XML External Entity (XXE) Processing Attacks

I'm evaluating the security of an Android application and the application is using the XmlPullParser included with Android. I'm having some difficulty getting any common attacks to work, but I want ...
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3answers
2k views

Android/iOS application security testing checklist

According to OWASP, we have a list of top ten mobile application vulnerabilities. But we are damn sure that the number of vulnerabilities on mobile apps, especially android apps are far more than ...
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1answer
69 views

What could be the possible exploit for android adware vulnerability?

I have read about the adware vulnerability here. An adware is a software that automatically displays or downloads advertising material like banners or pop-ups when a user is online. I have seen many ...
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1answer
89 views

Secure copy-paste from phone to computer

Some computers on my university block the keepass application which I use as a password manager. I'm thinking of building a small web application + Android app which lets me securely copy a string ...
14
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3answers
6k views

Does Android encryption really prevent law enforcement access?

Google recently announced that in Android L encryption would be turned on by default: For over three years Android has offered encryption, and keys are not stored off of the device, so they ...
3
votes
1answer
179 views

What is a secure mechanism for wireless communication between Android and Ubuntu?

I have come across a few Android apps that provide various features for communicating with a desktop machine (sending text or typing in one direction or another, controlling the desktop pointer with ...
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2answers
1k views

FIPS Compliance for my Android project

I am working on a security-related project and have to make sure it is FIPS 140-2 compliant. According to my understanding, FIPS compliance is compliance at hardware as well as software level. ...
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3answers
6k views

How do you capture ALL the traffic from an Android app?

I want to capture all the traffic from an Android app for its pen-testing. How do I do that? Here's what I've already tried: I installed the app on an emulator and started the emulator with a ...
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votes
1answer
162 views

Android phone (Kitkat) list A LOTS of CA under setting->security->Trusted credential,

My Android phone (Kitkat) list a LOTS of CA under setting->security->Trusted credential, does it mean that anyone who has accessed to anyone of those private keys of those CA(s) can monitor or do "Man ...
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3answers
817 views

Skype called someone and connected to them with no action on my part. What do I do?

This happened to me today, September 12, at about 6pm. Any ideas about what happened, what's going on, and what I should do? I was at home alone with my 2 year old -- I was feeding her dinner. All of ...
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1answer
228 views

Use openssl key to decrypt file in android/java [closed]

I want to decrypt file encrypted in openssl in java. File is encrypted with private key using openssl and on java side i want to decrypt it using public key. The code: public void testRSA() throws ...
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1answer
200 views

Rooted android cached password

Assume you could exploit a vulnerability on an old Android 2.2, the questions are: 1- Is there anyway you could see stored passwords on that operating system, specially Facebook password. 2- Can you ...
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votes
1answer
107 views

How to make a android phone anonymous off contract [closed]

How can I make my 2 year old phone not appear to be the same phone? I would like to make it into a WiFi browsing phone that cannot connect to the phone it used to be by it online footprint. Is ...
0
votes
2answers
272 views

Secure android and server calls

I plan on adding an authentication system on my android app using web services. When my app calls the server using a POST call how can i secure the client can't find the URL and try to do his own ...
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vote
1answer
865 views

Can you generate Diffie-Hellman parameters quickly [closed]

I am working on an android project for school and I am supposed to do a DHKE(Diffie Hellman Key Exchange). Everything works well, the problem is that it takes a lot of time (really a lot) to generate ...
2
votes
1answer
314 views

Arduino to Android secure bluetooth connection

I'm using an Arduino Uno and a nRF8001 board from Adafruit to connect to an Android phone over bluetooth. I will be using it to lock and unlock a lock and I need to make sure only verified devices are ...
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2answers
105 views

how to encrypt a sensitive model on android and ios

I am writing a mobile app which uses a statistical model contained in binary files. I want to be able to distribute the app freely, but I don't want anyone to be able to use my model files, even on a ...
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7answers
2k views

Can smartphone spyware work even if there is no data connection?

I am using android phone. Is it possible for spywares to transmit data even when I dont have any internet plan/connection ? Can it use some other way , say , cellular network etc ? EDIT1: SMS and ...
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0answers
89 views

Force TLS on mobile app

i'm developing a mobile application for iOS and Android. On this app i'm asking resources on a secure server through ajax. Server's developers asked me to force the call in order that we use TLS ...
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0answers
208 views

sending data from android client to database

I have created an android app which sends data to a web service (wcf). Right now the user sends his test result (test id, test name, test time and user ID) the problem is I that i send the data from ...
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2answers
4k views

Android L encryption vs. iOS 8 encryption

Recently, the new full-disk encryption system of Apple's iOS 8 operating system has been in the news. And soon after Apple's release, Google announced that they will also enable encryption by default ...
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2answers
526 views

How to call webservice securely in Android

Hello I am working on an Android application in which I'm required to execute a few https web service calls. All my web-service URLs and Web API KEYs are in the code plus the IP address of the server. ...
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0answers
53 views

Silent security on android

I saw a DEFCON talk about owning back a stolen PC/Mac, with a SSHd daemon and a dynamic-ip service installed,running in background. I was wondering if is it possible to achieve tha same results on an ...
2
votes
2answers
192 views

What are methods to protecting an android phone from law enforcement

From what I hear, android uses the standard linux dm-crypt for encryption. Obviously you should have: A pin/password for your phone That pin/password should at least be 8 characters The question ...
2
votes
1answer
185 views

Android encryption when phone is on

So I have android lollipop installed, which should be encrypted automatically with some startup password. My question is, what happens if the phone get stolen while its on, and the screen is locked? ...
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0answers
455 views

How to root a virtual device in android-sdk?

I was amused to see no one have ever asked such a question here before. After a little research in google I found only a few links to root a device in avd. Somewhere I also read that the sdk is ...
3
votes
2answers
260 views

Preventing Illegal Access to Webservice

Let me start off by saying that I read other StackExchange questions related to this and they weren't really able to answer my question. I have a feeling this may be an unsolvable problem, but I'm ...
0
votes
2answers
170 views

What are the possible exploits over a debuggable APK?

I have heard that an Android APK can be debugged if android:debuggable="true" is set. What are the possible threats in allowing an app to be debugged?
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1answer
82 views

LastPass Bootstrap on New Android Phone [closed]

I've been using LastPass to manage all my passwords, including the password for Google account. The thing is, on a new Android Phone, in order to sign in (for Gmail, Play store, etc), I need the ...
1
vote
1answer
132 views

Secure voice app [closed]

When I look in the Google play store (android apps market), I see that there are a lot of apps to make secure phone calls. However, all the apps I have seen so far all seem to use data packets over ...
0
votes
1answer
68 views

How much security would I lose if I enabled “easy enter” pins on an android device?

There is an option on android devices to unlock when the correct pin/password is entered, but without the user explicitly pressing the "done" or "enter" button. How much security does this remove from ...
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votes
2answers
114 views

How secure is a MD5 hash of an 128bit key

Apparently, for the Android KeyChain an encrypted master key is stored along the MD5 hash of the unencrypted Key. How secure is that? MD5 is known to have collisions, but I guess we can assume with an ...