-
Notifications
You must be signed in to change notification settings - Fork 497
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Sync RTA Potential Proxy Execution via Sed (#4183)
Co-authored-by: shashank-elastic <[email protected]> (cherry picked from commit fb96362)
- Loading branch information
1 parent
2ad8201
commit 682ed6d
Showing
1 changed file
with
47 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,47 @@ | ||
# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one | ||
# or more contributor license agreements. Licensed under the Elastic License | ||
# 2.0; you may not use this file except in compliance with the Elastic License | ||
# 2.0. | ||
|
||
import sys | ||
from . import RtaMetadata, common | ||
|
||
metadata = RtaMetadata( | ||
uuid="49b9a7c8-5974-4ed3-bba0-12ab02d9b8bc", | ||
platforms=["linux"], | ||
endpoint=[ | ||
{ | ||
"rule_name": "Potential Proxy Execution via Sed", | ||
"rule_id": "272cf3e7-fd3f-442b-a781-f9e864fb1d4c", | ||
}, | ||
], | ||
techniques=["T1218", "T1059"], | ||
) | ||
|
||
|
||
@common.requires_os(*metadata.platforms) | ||
def main() -> None: | ||
common.log("Creating a fake executable..") | ||
masquerade = "/tmp/sed" | ||
masquerade2 = "/tmp/sh" | ||
|
||
source = common.get_path("bin", "linux.ditto_and_spawn") | ||
common.copy_file(source, masquerade) | ||
common.log("Granting execute permissions...") | ||
common.execute(["chmod", "+x", masquerade]) | ||
|
||
source = common.get_path("bin", "linux.ditto_and_spawn") | ||
common.copy_file(source, masquerade2) | ||
common.log("Granting execute permissions...") | ||
common.execute(["chmod", "+x", masquerade2]) | ||
|
||
commands = [masquerade, '-n', masquerade, '-c', 'whoami'] | ||
common.execute([*commands], timeout=5, kill=True) | ||
common.log("Cleaning...") | ||
common.remove_file(masquerade) | ||
common.remove_file(masquerade2) | ||
common.log("Simulation successfull!") | ||
|
||
|
||
if __name__ == "__main__": | ||
sys.exit(main()) |