cve/2020/CVE-2020-8793.md

### [CVE-2020-8793](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8793)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

OpenSMTPD before 6.6.4 allows local users to read arbitrary files (e.g., on some Linux distributions) because of a combination of an untrusted search path in makemap.c and race conditions in the offline functionality in smtpd.c.

### POC

#### Reference
- http://seclists.org/fulldisclosure/2020/Feb/28
- http://www.openwall.com/lists/oss-security/2020/02/24/4

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/DmitrijVC/OpenSMTPD-RS
- https://github.com/FssAy/OpenSMTPD-RS
- https://github.com/bcoles/local-exploits