Kinoco Hacker Hands-on security practice
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Linux Level 5 270 points

Linux-Kernel Exploit. Rewriting a Read-Only File with Dirty COW

Mission

This challenge models mmap, MAP_PRIVATE, and madvise—the ingredients used by Dirty COW (CVE-2016-5195)—as a safe, deterministic user-space simulation. Compile and run the supplied program, then inspect the generated result without modifying the read-only source file.

#linux#kernel-exploit#race-condition

Clear it in 3 steps

Not started

  1. Start the environment

  2. Investigate the target

    Available after the environment starts

  3. Submit the flag