packman_1

Packman 1

Author: Sudesh Gowda J

Flag: CTF{ee_lo_p3ll3t_kh4o}

Problem Statement

Packman found this binary pellet but he is "sus" about this. Help the Packman "unpack" the situation.

Relevant files / links

• chall

Hint

Go to Ms.Jefferson

Solution

First extract the given zip file. It will contain a binary file. Running file command on the given binary reveals that the given file is a firmware image. Now using binwalk -e, we can unpack the given firmware.

Hint tells us to go to Ms.Jefferson(jffs). There will be a .jffs2 file in the extracted folder. Use tools like jefferson to extract this jffs file. Searching in the extracted file system will lead to a folder named sus which will contain the flag in a file named flag.txt.

PS: Flag appearing on strings command was unintended.