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Hash Generated Using Broken Cryptography API (SHA1) #29

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shishiraetna opened this issue Jan 18, 2022 · 0 comments
Open

Hash Generated Using Broken Cryptography API (SHA1) #29

shishiraetna opened this issue Jan 18, 2022 · 0 comments

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@shishiraetna
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The following vulnerable code locations within the App use CC_SHA1 or CryptoKit.Insecure.SHA1hashing functions, which leverage hashing algorithms that are proven to be vulnerable to collision attacks, and are unsuitable for modern use.

_-[FIRInstallationsIIDStore sha1WithData:] calls CC_SHA1()

This code was identified within the App.app/Frameworks/FirebaseInstallations.framework/FirebaseInstallations binary.

RECOMMENDATION
Switch each usage of these outdated hashing functions to use a stronger algorithm with better collision resistance properties, such as SHA-256 or SHA-512.

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