Dangerous usage of tx.origin.md

30 - Dangerous usage of tx.origin

Use of tx.origin for authorization may be abused by a MITM malicious contract forwarding calls from the legitimate user who interacts with it. Use msg.sender instead. (see here)

---

Slide Screenshot

---

Slide Text

• Use of tx.origin Dangerous
• tx.origin -> EOA
• Authorization MITM Replay Attack
• tx.origin -> msg.sender

---

References

• Youtube Reference

---

Tags