cve/2018/CVE-2018-3968.md

### [CVE-2018-3968](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-3968)
![](https://img.shields.io/static/v1?label=Product&message=Das%20U-Boot&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=%20Improper%20Verification%20of%20Cryptographic%20Signature&color=brighgreen)

### Description

An exploitable vulnerability exists in the verified boot protection of the Das U-Boot from version 2013.07-rc1 to 2014.07-rc2. The affected versions lack proper FIT signature enforcement, which allows an attacker to bypass U-Boot's verified boot and execute an unsigned kernel, embedded in a legacy image format. To trigger this vulnerability, a local attacker needs to be able to supply the image to boot.

### POC

#### Reference
- https://talosintelligence.com/vulnerability_reports/TALOS-2018-0633
- https://talosintelligence.com/vulnerability_reports/TALOS-2018-0633

#### Github
No PoCs found on GitHub currently.