Wrapped App Crashing after Initial login

Question

Wrapped App Crashing after Initial login

livetoautomate opened this issue 2 years ago · 4 comments

Describe the bug:
A custom mobile app crashes after Intune/MSAL login during first launch.

The iOS app was compiled with Xcode 14 and wrapped with wrapping tool (v17.3.2). There were no errors in the logs from the wrapping process.

To Reproduce
Steps to reproduce the behavior:

Install Mobile App (Success)
Launch Mobile App (Sign-In with Microsoft Login)
App shows "Your organization is now managing...", Click Ok
When launching app, it repeatedly crashes.

Expected behavior:
After the app closes (step 3, above), the app should launch and enforce app protection policies and display the standard app landing page.

Screenshots and logs:
_App Crash Log Below. Sanitized. _

{"app_name":"Mobile","timestamp":"2023-03-28 08:34:23.00 -0500","app_version":"4.0.1.0","slice_uuid":"5b5514f2-3285-363f-a294-453375253953","build_version":"20230329.4.3.0","platform":2,"bundleID":"com.","share_with_app_devs":0,"is_first_party":0,"bug_type":"309","os_version":"iPhone OS 15.6.1 (19G82)","incident_id":"A377F961-9B21-4564-A397-7D6CAE67E7CF","name":"Mobile"}
{
"uptime" : 6300,
"procLaunch" : "2023-03-28 08:34:22.7807 -0500",
"procRole" : "Foreground",
"version" : 2,
"userID" : 501,
"deployVersion" : 210,
"modelCode" : "iPhone13,2",
"procStartAbsTime" : 152762159273,
"coalitionID" : 633,
"osVersion" : {
"isEmbedded" : true,
"train" : "iPhone OS 15.6.1",
"releaseType" : "User",
"build" : "19G82"
},
"captureTime" : "2023-03-28 08:34:22.9658 -0500",
"incident" : "A377F961-9B21-4564-A397-7D6CAE67E7CF",
"bug_type" : "309",
"pid" : 1415,
"procExitAbsTime" : 152766526356,
"cpuType" : "ARM-64",
"procName" : "Mobile",
"procPath" : "/private/var/containers/Bundle/Application/03757669-AB0C-4B30-9A13-4811040F557A/Mobile.app/Mobile",
"bundleInfo" : {"CFBundleShortVersionString":"4.0.1.0","CFBundleVersion":"20230329.4.3.0","CFBundleIdentifier":"com.","DTAppStoreToolsBuild":"14A309"},
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"parentProc" : "launchd",
"parentPid" : 1,
"coalitionName" : "com.",
"crashReporterKey" : "d87c49920f076f84ef3b5374b1070e323d98d8a5",
"basebandVersion" : "2.70.01",
"isCorpse" : 1,
"exception" : {"codes":"0x0000000000000000, 0x0000000000000000","rawCodes":[0,0],"type":"EXC_CRASH","signal":"SIGABRT"},
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Smartphone (please complete the following information):

Device: iPhone 12
OS: 15.6.1
The app crashes on newer hardware with more recent iOS, too.

Intune app wrapping tool (please complete the following information):

What version of the wrapper are you using? Are you using the latest version? Latest, 17.3.2
What platform is your app based in (Java, Xamarin based, Cordova, etc)?
For pre-wrapping errors, does the app build without being wrapped? Yes
For post-wrapping errors, does the app launch without being wrapped? Yes
Who is the customer?
Do you see a trend with it only being reproduced on a specific device? No, It occurs on multiple devices and customers. The 3rd party that developed the app reported [to us] a separate customer has reported the same issue.

Additional context:
The same unwrapped app on the same device (different bundleid) launches without issue.

Answer 1 · 2023-04-05T11:04:33.000Z

@darosal - Any thoughts on this?

Answer 2 · 2023-04-05T15:54:34.000Z

Hi @bsmith05, thanks for reaching out! I'm looking into this now. Nothing immediately jumped out at me about the crash but it seems to be getting triggered by MSAL specific code that we call so I'm following up with them.

Answer 3 · 2023-04-11T15:34:06.000Z

Hi @darosal - Any feedback from the PG for MSAL?

Thanks!

Answer 4 · 2023-04-14T20:47:36.000Z

Developers noted that the app was originally compiled with the MSAL library. The note above "...but it seems to be getting triggered by MSAL specific code" prompted dev's to remove the MSAL library and compile again. After wrapping the new app, the crashing stopped.

This might be an opportunity to enhance the wrapping tool to check for MSAL before injecting it during wrapping.

Closing...