This Metasploit module exploits a vulnerability that has been in the Linux kernel since version 5.8. It allows writing of read only or immutable memory. The vulnerability was fixed in Linux 5.16.11, 5.15.25 and 5.10.102. The module exploits this vulnerability by overwriting a suid binary with the payload, executing it, and then writing the original data back. There are two major limitations of this exploit: the offset cannot be on a page boundary (it needs to write one byte before the offset to add a reference to this page to the pipe), and the write cannot cross a page boundary. This means the payload must be less than the page size (4096 bytes).
95e39ce5f94de2996183947c580313fe0356df719e22343a89d095b460489c7aVariant proof of concept exploit for the Dirty Pipe file overwrite vulnerability. This version hijacks a SUID binary to spawn a root shell.
896e5b87da1c2dcdc6b5bf2a4c03daf9da0145521f3b205c1bcf72db8ff2340fProof of concept for a vulnerability in the Linux kernel existing since version 5.8 that allows overwriting data in arbitrary read-only files. This leads to privilege escalation because unprivileged processes can inject code into root processes.
44e38035938b0841fe6c4b79375b95d9bdcc4665c0a63ed1dcb0ca5df0c03212
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