nsploit/sploit, branch v0.4

comm: Fix bug where readline thinks pipe is broken

2023-04-02T21:25:59+00:00

We should strip the newline from the data after checking if we got an
empty string returned.

Signed-off-by: dusoleil

Allow control of named pipe location via command-line

2023-04-01T02:23:34+00:00

Add the ability to select which location to create FIFOs when running in
pipes mode, by passing the directory name to sploit where a target
executable would usually go.  This has been an API feature from the start,
but not exposed via the sploit runner command-line interface.

There are a couple new use-cases where this is very convenient, including
scriptifying sploit in pipes mode (testing, for example) and when running
sploit under Docker.  If pipes are placed in the working directory, all
project files can be shared with a single bind mount.

Signed-off-by: Malfurious 
Signed-off-by: dusoleil

symtbl: Fix function docstring formatting

2023-04-01T02:23:30+00:00

Signed-off-by: Malfurious 
Signed-off-by: dusoleil

r2: Don't return duplicate gadgets in gadget search

2023-03-24T07:50:55+00:00

Signed-off-by: dusoleil 
Reviewed-by: Malfurious

r2: Get all relocs that have a name

2023-03-23T12:19:34+00:00

Originally I was deciding whether to get a reloc based on the type.  I'm
not sure what SET_64 vs ADD_64 means, but the SET* types seemed to be
the only symbols we care about.  After running into a binary where a
SET* symbol didn't have a name (and crashed sploit), I have decided to
filter on that instead.

Signed-off-by: dusoleil

rev: Use json output for get_bin_info()

2023-03-23T07:45:20+00:00

Grabbing the json and returning that dict directly avoids all of the
processing we were doing before.  I also added in a small, temporary
band-aid for PE files until we add actual support for them.  The 'relro'
key doesn't exist on PE files, so just default it to '' in ELF.

Signed-off-by: dusoleil

r2: Rewrite get_elf_symbols()

2023-03-23T07:23:18+00:00

This addresses a couple issues with get_elf_symbols().

First of all, we can greatly simplify our processing of the r2 output by
getting back json instead of trying to do string processing on their
pretty-printed tables.  This resolves a number of issues we were running
into and also makes the code way more maintainable.

Second, we have reevaluated what we actually want to get out of r2.  We
now grab section offsets, all FUNC, OBJ, and NOTYPE symbols, and all
strings.  The strings and section offsets no longer try to escape
special characters and sometimes aren't accessible through normal object
attributes, but now that we have dictionary subscripting, this isn't an
issue.

Lastly, a few subsets of the symbols are separated into their own tables
and added to the main table as subtables.  Sections are located at
sym.sect and offset at 0.  Imported symbols are located at sym.imp and are
offset at sect['.plt'].  Relocations are located at sym.rel and are offset at
sect['.got'].  Strings are located at sym.str and are offset at
sect['.rodata'].

Signed-off-by: dusoleil

symtbl: order symtbl iteration by offset

2023-03-22T15:18:07+00:00

When iterating over a symtbl, the returned tuples should be sorted by
offset.

Signed-off-by: dusoleil

r2: limit gadget search to exec privilege sections

2023-03-19T13:26:08+00:00

Signed-off-by: dusoleil

builder: Add initial version of ROP chain tools

2023-03-19T10:14:10+00:00

Adds a ROP-enabled payload builder under the builder namespace.  Much of
the behavior is parameterized by the active arch, so several new columns
are added to the Arch class.

Signed-off-by: Malfurious 
Signed-off-by: dusoleil