CVEs-PoC/2017/CVE-2017-15105.md

### [CVE-2017-15105](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15105)
![](https://img.shields.io/static/v1?label=Product&message=unbound&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=before%201.6.8%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-358&color=brightgreen)

### Description

A flaw was found in the way unbound before 1.6.8 validated wildcard-synthesized NSEC records. An improperly validated wildcard NSEC record could be used to prove the non-existence (NXDOMAIN answer) of an existing wildcard record, or trick unbound into accepting a NODATA proof.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/ibauersachs/dnssecjava