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Bug fix and good checking for bundle identifier.

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Injected applications here are all UIKit apps, and we do allow
injection to any if com.apple.UIKit or com.apple.Security is specified.
This commit is contained in:
Thatchapon Unprasert
2016-06-22 20:46:12 +07:00
parent 5709b252a8
commit ccc0f14823
1 changed files with 9 additions and 5 deletions
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simjectCore.mm
+9 -5
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@@ -26,17 +26,21 @@ NSString *simjectGenerateDylibList(SBApplicationInfo *appInfo, NSString *origina
if (supportedVersions && (supportedVersions.count == 1 || supportedVersions.count == 2)) {
if (supportedVersions.count == 1 && [supportedVersions[0] floatValue] > kCFCoreFoundationVersionNumber)
continue; // doesn't meet lower bound
if ([supportedVersions[0] floatValue] > kCFCoreFoundationVersionNumber || [supportedVersions[1] floatValue] < kCFCoreFoundationVersionNumber)
continue; // outside bounds
if (supportedVersions.count > 1) {
if ([supportedVersions[0] floatValue] > kCFCoreFoundationVersionNumber || [supportedVersions[1] floatValue] < kCFCoreFoundationVersionNumber)
continue; // outside bounds
}
}
// Now, check if the selected app's bundle ID matches anything in the plist
// Also check if any of the bundle IDs in the plist start with com.apple.*
if ([entry isEqualToString:bundleIdentifier] || [entry hasPrefix:@"com.apple."]) {
if ([entry isEqualToString:bundleIdentifier] || [entry hasPrefix:@"com.apple.UIKit"] || [entry hasPrefix:@"com.apple.Security"]) {
// If either of those conditions are met, inject the dylib
// Why inject com.apple.*? If a dylib is targeting that, it's likely a framework (com.apple.UIKit, etc.)
// Any app being injected here meant to be an UIKit app, so we have com.apple.UIKit bundle check
// com.apple.Security can also be added, because CydiaSubstrate injects into everything with that included
// An improvement can be made here by checking if the bundle ID is an installed system app or not... (-[SBApplicationInfo isSystemApplication])
// Such a check could be possible by using the MobileInstallationLookup function from the MobileInstallationInstall private framework
// I had considered doing that, but for the sake of releasing this in a timely manner, chose not to
// At this point, simjectUIKit should be loaded without CoreFoudationVersion restriction
[dylibsToInject addObject:[[plistPath stringByDeletingPathExtension] stringByAppendingString:@".dylib"]];
}
}