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Arbitrary CPI

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Content Objectives Progress

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Objectives

By the end of this lesson, you'll be able to:

Explain the security risks associated with invoking a CPI to an unknown program
Showcase how Anchor’s CPI module prevents this from happening when making a CPI from one Anchor program to another
Safely and securely make a CPI from an Anchor program to an arbitrary non-anchor program

Progress

How to approach the Program Security module

Lesson 1

Signer authorization

Lesson 2

Owner checks

Lesson 3

Account data matching

Lesson 4

Reinitialization attacks

Lesson 5

Duplicate mutable accounts

Lesson 6

Type cosplay

Lesson 7

Arbitrary CPIs

Lesson 8

Bump seed canonicalization

Lesson 9

Closing accounts and revival attacks

Lesson 10

PDA sharing

Lesson 11

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