Input Validation Attacks

Popularity:

7

Simplicity:

5

Impact:

10

Risk Rating:

7

This is the same basic attack that applies to standard network applications and database backends. Using the air protocol interface, an attacker may have the ability to create malicious content on tags or, by using a rogue reader or writer, to simulate and modify RFID tags.

An example of this type of attack is found in proximity access cards or badges used to control access into secure areas and buildings. Most proximity badges contain a facility code and a user ID. The unique user identifier code and facility code are captured by the reader and then sent to the backend for processing. The facility code and ID are matched to the access control for each area and access is either granted or denied. An attacker could write a SQL injection contained within the user or facility code data area on the badge and gain access without ever having to clone a card. If successful, the attacker would have the ability to bypass the security of most RFID proximity controls.

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