CVE-2020-7247 PoC — Openbsd Opensmtpd代码问题漏洞

Source

https://github.com/f4T1H21/CVE-2020-7247

Associated Vulnerability

Title: Openbsd Opensmtpd代码问题漏洞 (CVE-2020-7247)
Description:smtp_mailaddr in smtp_session.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session, as demonstrated by shell metacharacters in a MAIL FROM field. This affects the "uncommented" default configuration. The issue exists because of an incorrect return value upon failure of input validation.

Description

PoC exploit for CVE-2020-7247 OpenSMTPD 6.4.0 < 6.6.1 Remote Code Execution

Readme

# CVE 2020-7247

PoC exploit for OpenSMTPD 6.4.0 < 6.6.1 - Remote Code Execution, written by [f4T1H](https://github.com/f4T1H21), inspired by [QTranspose](https://github.com/QTranspose).<br>
Reference: <https://www.qualys.com/2020/01/28/cve-2020-7247/lpe-rce-opensmtpd.txt>

##### Dependencies:
```bash
pip3 install pwntools
```
## Usage:
```bash
python3 exploit.py <RHOST> <RPORT> <recipient_mail> <LHOST> <LPORT>
```
![](src/poc.gif)

File Snapshot

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