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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TLS 1.1 android 4 support [on hold]

Before Android 4.1 we couldn't add TLS 1.1 or more precisely tls pinning. IS there anyway to make android use TLS 1.1 for version before android 4.1
0
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1answer
49 views

Is there a backdoor in the hardware of our smartphones?

I don't know for you but I always felt like Android especially is not safe. Is somebody - the government or other - able to listen to my microphone, or access my hard drive remotely ? I'm wondering ...
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votes
1answer
25 views

tracking/spyware [on hold]

I have a Moto G (1st gen) and I have noticed a bleeping sound that has started this week on my phone. The bleep sounds like a tracking sound. I can't think of any apps I could have installed that ...
1
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0answers
24 views

What other methods can be utilized to carry out DoS attacks within Android?

So far I have discovered 2 methods of carrying DoS attacks within Android: The first being, inputting unexpected test data as function parameters e.g. : if a function was expecting a positive ...
4
votes
2answers
198 views

How can the Android GraphicBuffer::unflatten() vulnerability (CVE-2015-1474) be exploited remotely?

I've been reading up-on DoS (denial-of-service) attacks within android and although I understand attacks like the below, which make use of regular programming functions etc. (Android Web Browser) ...
2
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0answers
40 views

Exploitation of Reflected XSS on Android App

I am trying to do a security evaluation of an android application. I came across a situation where one of the activities of the app displays certain form fields in a webview. This form is very ...
0
votes
2answers
32 views

Different between Art And Dalvik Security on android?

What is the different between ART And Dalvik security, cause Google using Art after Kitkat (4.4.2) ? just for these two Options? Refrence Ahead-of-Time (AOT) compilation, which improves speed ...
-1
votes
1answer
40 views

how to detect the URL an android app uses [duplicate]

i want to know how to detect the URL an android app uses. Is there any way or can we create any other android app to find the URL my app is using.
0
votes
1answer
41 views

If hackers know my android app license key , can they redirect the in app purchases of my app to their account?

I have published an android app with in app purchase. I failed to encrypt XOR my licence key. If hackers have my license key can they redirect my payments to their account or just they can by pass in ...
1
vote
1answer
76 views

How is the username and password captured on this mobile device?

I have a Motorola phone, and I am concerned about my privacy after reading this article : http://www.beneaththewaves.net/Projects/Motorola_Is_Listening.html The poster says: For both of these ...
2
votes
2answers
74 views

token based authentication attacks

JSON Web Token seems to be a very good tool to authenticate users. But I wonder if an attacker can take the token used by another user and use it for his own attacks. And to be more precise what makes ...
1
vote
1answer
64 views

Android email encryption [closed]

Is there a reliable (in terms of security), open-source application for handling (send/receive + en-/decrypt) encrypted emails on Android? Something like TextSecure for emails. I just found a command ...
2
votes
3answers
71 views

Public key in resources for avoiding man in the middle attack

I am developing an android application which needs to communicate with a web server. Instead of using common SSL I would like to save my custom public key in resource folders of the application(APK ...
4
votes
2answers
90 views

Should other processes be running while an iPhone or Android is generating a cryptographically random number?

I need to generate a cryptographically secure random number on iOS and Android. I could use a software approach or leverage the built in OS API for this. In each case, is it better to generate a ...
1
vote
0answers
139 views

SSL traffic manipulation through ettercap MitM and iptables

I am trying to understand the relation between some tools and concepts used for MitM on a wifi network and how https transaction (over this wifi network) between an android app and the respective ...
2
votes
3answers
84 views

Securing Data at Rest in Android

Here's a situation. I am the author of an app that allows my customers to stream videos on their local android device. I also allow them to download the video and store it locally on their android ...
1
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0answers
35 views

What are the privacy and infosec risks with Apple Watches and Android Wear?

From what I can tell, I Apple Watch apps act like a remote control to a nearby iPhone using Bluetooth or BLE. Conversely Android watches have the ability to run full applications, and therefore ...
10
votes
2answers
2k views

How can I prevent a man-in-the-middle (MITM) attack on my Android app API?

I checked out the app Packet Capture. This app is able to decrypt my app APIs (SSL Enabled) data by mounting a MITM attack using the Android VPN service. This does not even require root. How can I ...
6
votes
2answers
116 views
+50

Are SIM proactive commands secure?

A SIM card can initiate some communication with a mobile device with so called "proactive commands" (chapter 6 of http://www.etsi.org/deliver/etsi_gts/11/1114/05.04.00_60/gsmts_1114v050400p.pdf). ...
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votes
2answers
63 views

Why is my Wi-Fi constantly in use? [closed]

I have a nexus phone running android lollipop. Even if I'm not browsing the web or using the WiFi at all (and after sync of various components has completed) the WiFi up/down arrows still flash ...
4
votes
2answers
75 views

How much can I trust the “factory restore/reset” on a(n) (potentially compromised) android?

This question is a simple one: how much can you trust the "factory restore/reset" option on an android device? If the device has possibly been compromised, is it possible the "factory reset" will ...
1
vote
1answer
101 views

How is password information stored and used on Android accounts?

How difficult would it be for someone who stole your device to gain access to the username and password information stored under the Settings -> More -> Accounts section of an Android device? ...
0
votes
1answer
51 views

Audio not playing on Android (Kitkat 4.4.2 on LG G Pro 2 D838) via HTTPS [closed]

I am having issues playing an audio file on the chrome browser! This audio file plays on the chrome browser on my mobile LG G Pro-2(D838) running Kitkat 4.4.2 without any issues. But when i uploaded ...
1
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1answer
30 views

Android Permissions and Explanations

I am doing some research on Android permissions and whether or not they could abuse data privacy. Does anyone have a good source on all updated Android permissions with a short explanation on what ...
0
votes
1answer
67 views

Are there additional security risks posed by rooting an Android device?

Once an Android device has been successfully rooted, are there any additional security risks created (besides telling SuperUser to trust a rogue root app)? For example, on a rooted Android device, ...
2
votes
1answer
35 views

Is android's FDE secure from offline attacks?

Android provides FDE, but it uses lockscreen pin, which is (at least in my case) fairly weak (like a 4-digit PIN). Does it mean that my FDE could be easily broken by offline attack? Or maybe master ...
1
vote
0answers
83 views

How secure is Jitsi VoIP/IM Android app? [closed]

I was looking for a FOSS end-to-end encrypted alternatives to Skype and came over Jitsi. It looks all nice and seems to work really well (at least clients on Linux and Android). Even cross-messaging ...
3
votes
1answer
75 views

Why do mobile operating systems not implement a way to deny permissions to an app?

Android and iOS (afaik) implement a relativly fine-grained permission schema for their apps. But as I user I only have the change to acceppt all or nothing. When I think about it, it shouldn't be a ...
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vote
0answers
96 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 ...
1
vote
0answers
82 views

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 ...
7
votes
2answers
111 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 ...
0
votes
1answer
72 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. ...
0
votes
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 ...
39
votes
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 ...
1
vote
1answer
52 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 ...
0
votes
0answers
35 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 ...
4
votes
1answer
69 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 ...
1
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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?) ...
2
votes
2answers
69 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 ...
2
votes
3answers
423 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
334 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 ...
0
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0answers
290 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, ...
1
vote
1answer
73 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 ...
0
votes
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 ...
1
vote
1answer
88 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 ...
2
votes
1answer
161 views

How can I intercept XMPP traffic on Android?

I have been learning about security testing on Android apps, and to intercept traffic I was using Burp Suite. I know it works perfectly for HTTP/HTTPS traffic, but most of the messenger apps are using ...
3
votes
1answer
46 views

Does changing my password after OAuth login in mobile app help reduce risk?

When you use a mobile app that needs Google OAuth login, you can't fully trust the third party app because you can't tell what url the webview is using. Who knows if they aren't storing my login and ...
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votes
1answer
157 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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votes
1answer
224 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 ...
-1
votes
1answer
104 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 ...