cve/2020/CVE-2020-28008.md

CVE-2020-28008

Description

Exim 4 before 4.94.2 allows Execution with Unnecessary Privileges. Because Exim operates as root in the spool directory (owned by a non-root user), an attacker can write to a /var/spool/exim4/input spool header file, in which a crafted recipient address can indirectly lead to command execution.

POC

Reference

• https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28008-SPDIR.txt
• https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28008-SPDIR.txt

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/dorkerdevil/CVE-2020-28018