Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

Sign up
Appearance settings

0x6773/cfctf17

Folders and files

NameName
Last commit message
Last commit date

Latest commit

History

4 Commits

Repository files navigation

cfctf17

  • The md5 of username is hard coded in js. screenshot
  • Use md5online to get plain text and get flag{17_w45_hidd3n_in_p14in_5igh7}
  • change the flag cookie to false,
  • Enter
  • Username : root
  • md5 of password is cookie pass
  • Use md5online to get password
  • Enter to get flag.

Screenshot

cr4ck_7hi5_7ce7aa193db6fd41fc3857602e72fc1d

Running binwalk will reveal the contents of executable. Run the following commands to get flag:

 $ binwalk cr4ck_7hi5_7ce7aa193db6fd41fc3857602e72fc1d
 $ dd if=cr4ck_7hi5_7ce7aa193db6fd41fc3857602e72fc1d of=out.png skip=1536 bs=1
 $ eog out.png

malicious_0a5aca19667459c2b75c384d7a6af48f.zip

Running binwalk will reveal the contents of executable.

 $ binwalk -e malicious_0a5aca19667459c2b75c384d7a6af48f.zip
 $ cd _malicious_0a5aca19667459c2b75c384d7a6af48f.zip.extracted
 # file.txt contains hex encoded string of flag
 $ python2 -c "print '`cat flag.txt`'.decode('hex')"
 flag{k33p_up_y0ur_zipp3r5}

SimplyBlack_b0c707a6fdf259e468663cebafb84451.png

Title says "50 shades of grey" Open gimp increase brightness and contrast.

gimp

Flag : flag{LETHAL}

un10ck_m3_a04acef13380d5a9bbc20fddc7dd426c

Run the following commands to get the flag:

 $ gdb ./un10ck_m3_a04acef13380d5a9bbc20fddc7dd426c
 (gdb) b *0x400686
 (gdb) b *0x400cca
 (gdb) r
 (gdb) set $rip=0x400c8f
 (gdb) c
 (gdb) set $rip=0x400cd0
 (gdb) c
 (gdb) q

About

This is how I solved the challenges of CodefestCTF'17

Topics

Resources

License

Stars

Watchers

Forks

Releases

No releases published

Packages

Contributors

Languages

AltStyle によって変換されたページ (->オリジナル) /