CVE-2020-28018

This repository contains a functional exploit for CVE-2020-28018, a use-after-free vulnerability in Exim's `tls-openssl.c` leading to remote code execution. The exploit includes a checker script to verify target vulnerability and detailed setup instructions for environment configuration.

This repository contains a checker script for CVE-2020-28018, a Use-After-Free vulnerability in Exim's tls-openssl.c. The script verifies if the target Exim version is vulnerable and checks for necessary conditions like PIPELINING and STARTTLS being enabled.

This repository provides a detailed technical analysis of CVE-2020-28018, a use-after-free vulnerability in Exim4's TLS implementation. It includes a breakdown of the vulnerability in the `tls_write` function and the conditions required for exploitation, but lacks a functional exploit or PoC code.