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ipautil

License: MIT

ipautil is a useful utility for mobile security testing. This tool makes it easy to resign the IPA, check for potentially sensitive files and Info.plist in the IPA.

It is a wrapper for codesign commands. I've only checked it works on macOS. Android version is here.

Installation

Since ipautil is implemented in Python, it can be installed with the pip command, which is a Python package management system.

$ pip install git+ssh://[email protected]/aktsk/ipautil.git

Also, place ~/ipautil.json containing the sign information necessary for signing IPA in your home directory.

{
    "entitlements-plist": "/hoge/entitlements.plist",
    "embedded-mobileprovision": "/fuga/embedded.mobileprovision"
}

Usage

The command outputs are displayed in color. You can use a function with subcommands. The GIF is a scene of resign the IPA.

terminal

subcommands

Most of the subcommands are assigned with alias.

subcommand alias desc
info i check Info.plist
decode d decode IPA
build b build IPA
sign s sign IPA

info

info subcommand allows you to see some information by parsing Info.plist.

$ ipautil info Payload/demo-client\ iOS\ develop.app/Info.plist 
Checking Info.plist...
CFBundleName:
demo-client iOS develop

CFBundleDisplayName:
demo-dev

Checking AppTransportSecurity...
True

NSExceptionDomains:
facebook.com

Custom schemas (CFBundleURLSchemes):
None

decode

decode subcommand make the IPA decode. When unzipping the IPA, check for potentially sensitive files and check the Info.plist.

$ ipautil decode sample.ipa
Decoding IPA...
Archive: sample.ipa
   creating: Payload/
   creating: Payload/demo-client iOS develop.app/
   creating: Payload/demo-client iOS develop.app/_CodeSignature/
  inflating: Payload/demo-client iOS develop.app/_CodeSignature/CodeResources  
  inflating: Payload/demo-client iOS develop.app/demo-client iOS develop  
...
  inflating: Payload/demo-client iOS develop.app/Info.plist  

CFBundleName:
demo-client iOS develop

CFBundleDisplayName:
demo-dev

Checking AppTransportSecurity...
True

NSExceptionDomains:
facebook.com

Custom schemas (CFBundleURLSchemes):
None

Potentially Sensitive Files:
./Payload/demo-client iOS develop.app/README.md
./Payload/demo-client iOS develop.app/hoge.sh

Output: ./Payload

build

build subcommand make the IPA build. It also sign the IPA by codesign before the build is complete.

$ ipautil build Payload
Signing IPA by codesign...
Payload/demo-client iOS develop.app/Frameworks/Hoge.framework: replacing existing signature
Payload/demo-client iOS develop.app/Frameworks/Fuga.framework: replacing existing signature
Payload/demo-client iOS develop.app: replacing existing signature
Signed

Building IPA...
  adding: Payload/ (stored 0%)
  adding: Payload/demo-client iOS develop.app/ (stored 0%)
  adding: Payload/demo-client iOS develop.app/_CodeSignature/ (stored 0%)
  adding: Payload/demo-client iOS develop.app/_CodeSignature/CodeResources (deflated 74%)
  adding: Payload/demo-client iOS develop.app/demo-client iOS develop (deflated 62%)
  ...

Output: demo-client_iOS_develop.app.patched.ipa

sign

sign subcommand make the Payload directory sign by codesign.

$ ipautil sign Payload/
Signing IPA by codesign...
Payload/demo-client iOS develop.app/Frameworks/Hoge.framework: replacing existing signature
Payload/demo-client iOS develop.app/Frameworks/Fuga.framework: replacing existing signature
Payload/demo-client iOS develop.app: replacing existing signature
Signed

License

MIT License

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