slipit is a command line utility for creating archives with path traversal elements.

Related tags

Command-line Toolsslipit
Overview

slipit

slipit is a command line utility for creating archives with path traversal elements. It is basically a successor of the famous evilarc utility with an extended feature set and improved base functionality.

Installation

slipit can be installed via pip by running the following commands:

$ git clone https://github.com/usdAG/slipit
$ cd slipit
$ python3 setup.py sdist
$ pip3 install --user sdist/*

slipit also supports autocompletion for bash. To take advantage of autocompletion, you need to have the completion-helpers project installed. If setup correctly, just copying the completion script to your ~/.bash_completion.d folder enables autocompletion.

Usage

[[email protected] ~]$ slipit -h
usage: slipit [-h] [--archive-type {zip,tar,tgz,bz2}] [--clear] [--debug] [--depth int] [--increment int] [--overwrite]
              [--prefix string] [--multi] [--separator char] [--sequence seq] [--static content] [input ...] archive

slipit v1.0.0 - Utility for creating ZipSlip archives.

positional arguments:
  input                 input files to include into the archive
  archive               target archive file

optional arguments:
  -h, --help            show this help message and exit
  --archive-type {zip,tar,tgz,bz2}
                        archive type to use
  --clear               clear the specified archive from traversal items
  --debug               enable verbose error output
  --depth int           number of traversal sequences to use (default=6)
  --increment int       add incremental traversal payloads from 
   
     to depth
   
  --overwrite           overwrite the target archive instead of appending to it
  --prefix string       prefix to use before the file name
  --multi               create an archive containing multiple payloads
  --separator char      path separator (default=\)
  --sequence seq        use a custom traversal sequence (default=..{sep})
  --static content      use static content for each input file

slipit expects an arbitrary number of input files and the targeted output archive as mandatory command line parameters. All specified input files are appended to the specified archive including a path traversal prefix with a depth specified with the --depth option (default is 6). The targeted archive format is determined automatically depending on the file extension for non existing archives or the mime type for already existing archives. You can also specify the archive type manually by using the --archive-type option.

[[email protected] ~]$ slipit example.zip 
File Name                                             Modified             Size
example/                                       2022-02-02 18:39:00            0
example/images/                                2022-02-02 18:40:16            0
example/images/holiday.png                     2022-02-02 18:40:06        34001
example/images/beach.png                       2022-02-02 18:40:16         2112
example/documents/                             2022-02-02 18:39:48            0
example/documents/invoice.docx                 2022-02-02 18:39:40         3001
example/documents/important.docx               2022-02-02 18:39:48          121
[[email protected] ~]$ slipit test.txt example.zip 
[[email protected] ~]$ slipit example.zip 
File Name                                             Modified             Size
example/                                       2022-02-02 18:39:00            0
example/images/                                2022-02-02 18:40:16            0
example/images/holiday.png                     2022-02-02 18:40:06        34001
example/images/beach.png                       2022-02-02 18:40:16         2112
example/documents/                             2022-02-02 18:39:48            0
example/documents/invoice.docx                 2022-02-02 18:39:40         3001
example/documents/important.docx               2022-02-02 18:39:48          121
..\..\..\..\..\..\test.txt                     2022-02-02 18:40:48           36

slipit expects the specified input files to exist on your local file system and uses the file content of them within the archive. Often times this is not necessary and you just require dummy content to test for ZipSlip vulnerabilities. This is where the --static option can be helpful. When using this option, only the filenames of the specified input files are used within the archive, while their content is set to .

[[email protected] ~]$ slipit test2.txt example.zip --static 'HELLO WORLD :D'
[[email protected] ~]$ slipit example.zip 
File Name                                             Modified             Size
example/                                       2022-02-02 18:39:00            0
example/images/                                2022-02-02 18:40:16            0
example/images/holiday.png                     2022-02-02 18:40:06        34001
example/images/beach.png                       2022-02-02 18:40:16         2112
example/documents/                             2022-02-02 18:39:48            0
example/documents/invoice.docx                 2022-02-02 18:39:40         3001
example/documents/important.docx               2022-02-02 18:39:48          121
..\..\..\..\..\..\test.txt                     2022-02-02 18:40:48           36
..\..\..\..\..\..\test2.txt                    2022-02-02 18:45:22           14

By using the --clear option, you can clear an archive from path traversal payloads.

[[email protected] ~]$ slipit --clear example.zip 
[[email protected] ~]$ slipit example.zip 
File Name                                             Modified             Size
example/                                       2022-02-02 18:39:00            0
example/images/                                2022-02-02 18:40:16            0
example/images/holiday.png                     2022-02-02 18:40:06        34001
example/images/beach.png                       2022-02-02 18:40:16         2112
example/documents/                             2022-02-02 18:39:48            0
example/documents/invoice.docx                 2022-02-02 18:39:40         3001
example/documents/important.docx               2022-02-02 18:39:48          121

slipit also allows to create an archive containing multiple payloads by using the --multi option:

[[email protected] ~]$ slipit test.txt example.zip --static content --multi
[[email protected] ~]$ slipit example.zip 
File Name                                             Modified             Size
C:\Windows\test.txt                            2022-02-03 09:35:28            7
\\10.10.10.1\share\test.txt                    2022-02-03 09:35:28            7
/root/test.txt                                 2022-02-03 09:35:28            7
../test.txt                                    2022-02-03 09:35:28            7
..\test.txt                                    2022-02-03 09:35:28            7
../../test.txt                                 2022-02-03 09:35:28            7
..\..\test.txt                                 2022-02-03 09:35:28            7
../../../test.txt                              2022-02-03 09:35:28            7
..\..\..\test.txt                              2022-02-03 09:35:28            7
../../../../test.txt                           2022-02-03 09:35:28            7
..\..\..\..\test.txt                           2022-02-03 09:35:28            7
../../../../../test.txt                        2022-02-03 09:35:28            7
..\..\..\..\..\test.txt                        2022-02-03 09:35:28            7

Supported Archive Types

Currently, the following archive types are supported (just naming their most common extension):

  • .zip
  • .tar
  • .tar.gz
  • .tar.bz2
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Comments
  • [Bug] Unexcepted exception occured.

    [Bug] Unexcepted exception occured.

    • slipit v1.0.0
    • Installed via pip
    • On Kali GNU/Linux Rolling, Linux kali 5.18.0-kali5-amd64 #1 SMP PREEMPT_DYNAMIC Debian 5.18.5-1kali6 (2022-07-07) x86_64 GNU/Linux
    • Python 3.10.5
    slipit --archive-type tgz test.tar.gz test.file 
[-] Unexcepted exception occured.
[-] 'NoneType' object has no attribute 'open'

    With the --archive-type option, the tool fails with the above error message. A .tar.gz file is successfully create without the option.

    opened by BreakfastSerial 1
Releases(v1.0.1)
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