This PR adds an exploit module which allows for
a user who has compromised a host acting as a
SaltStack Master to deploy payloads to the Minions
attached to that Master.
This fixes a huge number of hard-to-detect runtime bugs
that occur when a default utf-8 string from one of these
libraries is passed into a method expecting ascii-8bit
Unfortunately, adds a dep on bionic for runtime compilation.
Gets ring0, sets the (res)uid to 0 and jumps to the payload. Still some
payload issues because linux stagers don't mprotect(2) the buffer they
read(2) into. Single payloads work fine, though.
Also cleans up and improves local exploits' ability to compile C.
[SEERM #3038]
Something is still broken, my socket() is returning EAFNOSUPPORT whereas
what looks like the same syscall in wunderbar_emporium's exploit.c is
returning a socket. Similarly, my __mmap2() is returning EFAULT when
trying to map anything, not just NULL.
This can currently build an executable that creates a socket, opens a
temporary file, truncates that file with ftruncate(2) and calls
sendfile. Still needs to mmap NULL and figure out ring0 shellcode.
Baby steps.
Jack Heysel