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SaltStack Salt contains a command-injection vulnerability in the Salt minion restartcheck functionality. A crafted process name can be interpreted as a command, enabling local privilege escalation on an affected minion.
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This repository provides a proof-of-concept (PoC) local privilege escalation exploit for CVE-2020-28243, a command injection vulnerability in SaltStack's Salt Minion. The exploit consists of a Bash script (exploit.sh) and a small C helper program (helper.c). The Bash script automates the process of creating a process with a specially crafted name containing a shell command, which is then executed as root when the Salt master triggers a restartcheck on the minion. The script allows the user to specify a writable directory and an arbitrary command to execute. The helper C program is compiled and used to create a file with a specific name to facilitate the exploit. The exploit is local and requires the attacker to have write/execute access to a suitable directory on the minion. The README provides detailed usage instructions, requirements, and example payloads. The exploit targets SaltStack Minion versions 2016.3.0rc2 through 3002.2 on Linux systems.
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