nerdexam
GIAC

GPEN · Question #127

Which of the following password cracking tools can work on the Unix and Linux environment?

The correct answer is D. John the Ripper. John the Ripper is the correct answer because it is an open-source, cross-platform password cracker with native support for Unix and Linux systems.

Exploitation & Post-Exploitation Techniques

Question

Which of the following password cracking tools can work on the Unix and Linux environment?

Options

  • ABrutus
  • BCain and Abel
  • COphcrack
  • DJohn the Ripper

How the community answered

(40 responses)
  • A
    5% (2)
  • B
    15% (6)
  • C
    8% (3)
  • D
    73% (29)

Why each option

John the Ripper is the correct answer because it is an open-source, cross-platform password cracker with native support for Unix and Linux systems.

ABrutus

Brutus is a Windows-only GUI-based network authentication brute-forcing tool and has no native support for Unix or Linux operating systems.

BCain and Abel

Cain and Abel is a Windows-only tool designed to crack Windows LM/NTLM hashes and sniff network credentials; it does not run on Unix or Linux.

COphcrack

Ophcrack is primarily a Windows-focused tool that uses precomputed rainbow tables to crack Windows NTLM and LM hashes; it is not designed for Unix or Linux password formats.

DJohn the RipperCorrect

John the Ripper was originally developed specifically for Unix/Linux environments and supports a wide range of Unix password hash formats including DES, MD5, and SHA-crypt. It offers multiple attack modes - dictionary, brute-force, and incremental - and runs natively on Unix, Linux, macOS, and Windows, making it the definitive choice for Unix/Linux password auditing.

Concept tested: Cross-platform password cracking tool - Unix/Linux support

Source: https://www.openwall.com/john/

Topics

#password cracking#John the Ripper#Linux tools#offline attack

Community Discussion

No community discussion yet for this question.

Full GPEN Practice