This is an archived web site made available for research purposes. The web site is no longer maintained.

Challenge Information - KPRCA_00079

Commonly known as: Space_Attackers


Rounds Enabled

32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46

Details

Original Versions

Known Vulnerabilities

  • CWE-121 - Stack-based Buffer Overflow
  • CWEs are listed as indicated by the challenge author.

Deployed patches

Deployed IDS rules

None

DARPA performer group

Kaprica Security (KPRCA)

Description

This service creates an interface in which someone can play an awesome game where the player avoids lasers coming downwards, while shooting lasers themself back up at the enemy. Sending a newline steps the game forward. If no key has been pressed when the newline is sent, the ship will fire. Otherwise, w = move up, d = move right, a = move left, s = move down.

Feature List

When the game starts, the user inputs their name and is greeted into the game as the General they will become. The game then proceeds until either the enemies reach the bottom (lose), the player is hit by an enemy laser (lose) or all the enemies are eliminated (win). If the player wins, they are then entered into a "Dance Mode" for celebration.

Vulnerability

Vulnerability 1

If the player inputs their name as "magic", then a special cheat mode is enabled which forces the enemies to move in a simple pattern and to not fire. This allows the player to easily win the game and enter "Dance Mode".

Once in "Dance Mode", the player can send "w\n" to increment a counter and "s\n" to save the counter as a byte in a buffer. When the buffer is in the desired state, the player can send "d\n" to strcpy the buffer being created into a 256 byte buffer residing on the stack (service.c:708).

Generic class of vulnerability

Stack-based buffer overflow

CWE classification

CWE-121: Stack-based Buffer Overflow

Challenges

  • Discovery via fuzzing is difficult because it is hard to win the game without using the cheat mode. Symbolic execution or static analysis may work better to find the vulnerable code.
  • Proving requires using the cheat mode and also generating the correct input which is difficult because there is not data flow from the input to the vulnerable buffer.

Difficulty

  • Discovery: Medium
  • Proving: Medium
  • Patching: Easy

POV Information

Round Source Destination Result POV Analysis Video
33 CSDS CodeJitsu Failed POV POV Watch
33 CSDS DeepRed Failed POV POV Watch
33 CSDS Disekt Failed POV POV Watch
33 CSDS ForAllSecure Failed POV POV Watch
33 CSDS Shellphish Failed POV POV Watch
33 CSDS TECHx Failed POV POV Watch
33 DeepRed CodeJitsu Failed POV POV Watch
33 DeepRed CSDS Failed POV POV Watch
33 DeepRed Disekt Failed POV POV Watch
33 DeepRed ForAllSecure Failed POV POV Watch
33 DeepRed Shellphish Failed POV POV Watch
33 DeepRed TECHx Failed POV POV Watch
34 CSDS CodeJitsu Failed POV POV Watch
34 CSDS DeepRed Failed POV POV Watch
34 CSDS Disekt Failed POV POV Watch
34 CSDS ForAllSecure Failed POV POV Watch
34 CSDS Shellphish Failed POV POV Watch
34 CSDS TECHx Failed POV POV Watch
34 DeepRed CodeJitsu Failed POV POV Watch
34 DeepRed CSDS Failed POV POV Watch
34 DeepRed Disekt Failed POV POV Watch
34 DeepRed ForAllSecure Failed POV POV Watch
34 DeepRed Shellphish Failed POV POV Watch
34 DeepRed TECHx Failed POV POV Watch
34 ForAllSecure CodeJitsu Failed POV POV Watch
34 ForAllSecure CSDS Failed POV POV Watch
34 ForAllSecure DeepRed Failed POV POV Watch
34 ForAllSecure Disekt Failed POV POV Watch
34 ForAllSecure Shellphish Failed POV POV Watch
34 ForAllSecure TECHx Failed POV POV Watch
35 CSDS CodeJitsu Failed POV POV Watch
35 CSDS DeepRed Failed POV POV Watch
35 CSDS Disekt Failed POV POV Watch
35 CSDS ForAllSecure Failed POV POV Watch
35 CSDS Shellphish Failed POV POV Watch
35 CSDS TECHx Failed POV POV Watch
35 DeepRed CodeJitsu Failed POV POV Watch
35 DeepRed CSDS Failed POV POV Watch
35 DeepRed Disekt Failed POV POV Watch
35 DeepRed ForAllSecure Failed POV POV Watch
35 DeepRed Shellphish Failed POV POV Watch
35 DeepRed TECHx Failed POV POV Watch
35 ForAllSecure CodeJitsu Failed POV POV Watch
35 ForAllSecure CSDS Failed POV POV Watch
35 ForAllSecure DeepRed Failed POV POV Watch
35 ForAllSecure Disekt Failed POV POV Watch
35 ForAllSecure Shellphish Failed POV POV Watch
35 ForAllSecure TECHx Failed POV POV Watch
36 CodeJitsu Shellphish Failed POV through defenses POV Watch
36 CSDS CodeJitsu Failed POV POV Watch
36 CSDS DeepRed Failed POV POV Watch
36 CSDS Disekt Failed POV POV Watch
36 CSDS ForAllSecure Failed POV POV Watch
36 CSDS Shellphish Failed POV through defenses POV Watch
36 CSDS TECHx Failed POV POV Watch
36 DeepRed CodeJitsu Failed POV POV Watch
36 DeepRed CSDS Failed POV POV Watch
36 DeepRed Disekt Failed POV POV Watch
36 DeepRed ForAllSecure Failed POV POV Watch
36 DeepRed Shellphish Failed POV through defenses POV Watch
36 DeepRed TECHx Failed POV POV Watch
36 ForAllSecure CodeJitsu Failed POV POV Watch
36 ForAllSecure CSDS Failed POV POV Watch
36 ForAllSecure DeepRed Failed POV POV Watch
36 ForAllSecure Disekt Failed POV POV Watch
36 ForAllSecure Shellphish Failed POV through defenses POV Watch
36 ForAllSecure TECHx Failed POV POV Watch
37 CSDS CodeJitsu Failed POV POV Watch
37 CSDS DeepRed Failed POV POV Watch
37 CSDS Disekt Failed POV POV Watch
37 CSDS ForAllSecure Failed POV POV Watch
37 CSDS Shellphish Failed POV through defenses POV Watch
37 CSDS TECHx Failed POV POV Watch
37 DeepRed CodeJitsu Failed POV POV Watch
37 DeepRed CSDS Failed POV POV Watch
37 DeepRed Disekt Failed POV POV Watch
37 DeepRed ForAllSecure Failed POV POV Watch
37 DeepRed Shellphish Failed POV through defenses POV Watch
37 DeepRed TECHx Failed POV POV Watch
37 ForAllSecure CodeJitsu Failed POV POV Watch
37 ForAllSecure CSDS Failed POV POV Watch
37 ForAllSecure DeepRed Failed POV POV Watch
37 ForAllSecure Disekt Failed POV POV Watch
37 ForAllSecure Shellphish Failed POV through defenses POV Watch
37 ForAllSecure TECHx Failed POV POV Watch
38 CSDS CodeJitsu Failed POV POV Watch
38 CSDS DeepRed Failed POV POV Watch
38 CSDS Disekt Failed POV POV Watch
38 CSDS ForAllSecure Failed POV POV Watch
38 CSDS Shellphish Failed POV through defenses POV Watch
38 CSDS TECHx Failed POV POV Watch
38 DeepRed CodeJitsu Failed POV POV Watch
38 DeepRed CSDS Failed POV POV Watch
38 DeepRed Disekt Failed POV POV Watch
38 DeepRed ForAllSecure Failed POV POV Watch
38 DeepRed Shellphish Failed POV through defenses POV Watch
38 DeepRed TECHx Failed POV POV Watch
38 ForAllSecure CodeJitsu Failed POV POV Watch
38 ForAllSecure CSDS Failed POV POV Watch
38 ForAllSecure DeepRed Failed POV POV Watch
38 ForAllSecure Disekt Failed POV POV Watch
38 ForAllSecure Shellphish Failed POV through defenses POV Watch
38 ForAllSecure TECHx Failed POV POV Watch
39 CSDS CodeJitsu Failed POV POV Watch
39 CSDS DeepRed Failed POV POV Watch
39 CSDS Disekt Failed POV POV Watch
39 CSDS ForAllSecure Failed POV POV Watch
39 CSDS Shellphish Failed POV through defenses POV Watch
39 CSDS TECHx Failed POV POV Watch
39 DeepRed CodeJitsu Failed POV POV Watch
39 DeepRed CSDS Failed POV POV Watch
39 DeepRed Disekt Failed POV POV Watch
39 DeepRed ForAllSecure Failed POV POV Watch
39 DeepRed Shellphish Failed POV through defenses POV Watch
39 DeepRed TECHx Failed POV POV Watch
39 ForAllSecure CodeJitsu Failed POV POV Watch
39 ForAllSecure CSDS Failed POV POV Watch
39 ForAllSecure DeepRed Failed POV POV Watch
39 ForAllSecure Disekt Failed POV POV Watch
39 ForAllSecure Shellphish Failed POV through defenses POV Watch
39 ForAllSecure TECHx Failed POV POV Watch
40 CSDS CodeJitsu Failed POV POV Watch
40 CSDS DeepRed Failed POV POV Watch
40 CSDS Disekt Failed POV POV Watch
40 CSDS ForAllSecure Failed POV POV Watch
40 CSDS Shellphish Failed POV through defenses POV Watch
40 CSDS TECHx Failed POV POV Watch
40 DeepRed CodeJitsu Failed POV POV Watch
40 DeepRed CSDS Failed POV POV Watch
40 DeepRed Disekt Failed POV POV Watch
40 DeepRed ForAllSecure Failed POV POV Watch
40 DeepRed Shellphish Failed POV through defenses POV Watch
40 DeepRed TECHx Failed POV POV Watch
40 ForAllSecure CodeJitsu Failed POV POV Watch
40 ForAllSecure CSDS Failed POV POV Watch
40 ForAllSecure DeepRed Failed POV POV Watch
40 ForAllSecure Disekt Failed POV POV Watch
40 ForAllSecure Shellphish Failed POV through defenses POV Watch
40 ForAllSecure TECHx Failed POV POV Watch
41 CSDS CodeJitsu Failed POV POV Watch
41 CSDS DeepRed Failed POV POV Watch
41 CSDS Disekt Failed POV POV Watch
41 CSDS ForAllSecure Failed POV POV Watch
41 CSDS Shellphish Failed POV through defenses POV Watch
41 CSDS TECHx Failed POV POV Watch
41 DeepRed CodeJitsu Failed POV POV Watch
41 DeepRed CSDS Failed POV POV Watch
41 DeepRed Disekt Failed POV POV Watch
41 DeepRed ForAllSecure Failed POV POV Watch
41 DeepRed Shellphish Failed POV through defenses POV Watch
41 DeepRed TECHx Failed POV POV Watch
41 ForAllSecure CodeJitsu Failed POV POV Watch
41 ForAllSecure CSDS Failed POV POV Watch
41 ForAllSecure DeepRed Failed POV POV Watch
41 ForAllSecure Disekt Failed POV POV Watch
41 ForAllSecure Shellphish Failed POV through defenses POV Watch
41 ForAllSecure TECHx Failed POV POV Watch
42 CodeJitsu Shellphish Failed POV POV Watch
42 CSDS CodeJitsu Failed POV POV Watch
42 CSDS DeepRed Failed POV POV Watch
42 CSDS Disekt Failed POV POV Watch
42 CSDS ForAllSecure Failed POV POV Watch
42 CSDS Shellphish Failed POV POV Watch
42 CSDS TECHx Failed POV POV Watch
42 DeepRed CodeJitsu Failed POV POV Watch
42 DeepRed CSDS Failed POV POV Watch
42 DeepRed Disekt Failed POV POV Watch
42 DeepRed ForAllSecure Failed POV POV Watch
42 DeepRed Shellphish Failed POV POV Watch
42 DeepRed TECHx Failed POV POV Watch
42 ForAllSecure CodeJitsu Failed POV POV Watch
42 ForAllSecure CSDS Failed POV POV Watch
42 ForAllSecure DeepRed Failed POV POV Watch
42 ForAllSecure Disekt Failed POV POV Watch
42 ForAllSecure Shellphish Failed POV POV Watch
42 ForAllSecure TECHx Failed POV POV Watch
43 CSDS CodeJitsu Failed POV POV Watch
43 CSDS DeepRed Failed POV POV Watch
43 CSDS Disekt Failed POV POV Watch
43 CSDS ForAllSecure Failed POV POV Watch
43 CSDS Shellphish Failed POV POV Watch
43 CSDS TECHx Failed POV POV Watch
43 DeepRed CodeJitsu Failed POV POV Watch
43 DeepRed CSDS Failed POV POV Watch
43 DeepRed Disekt Failed POV POV Watch
43 DeepRed ForAllSecure Failed POV POV Watch
43 DeepRed Shellphish Failed POV POV Watch
43 DeepRed TECHx Failed POV POV Watch
43 ForAllSecure CodeJitsu Failed POV POV Watch
43 ForAllSecure CSDS Failed POV POV Watch
43 ForAllSecure DeepRed Failed POV POV Watch
43 ForAllSecure Disekt Failed POV POV Watch
43 ForAllSecure Shellphish Failed POV POV Watch
43 ForAllSecure TECHx Failed POV POV Watch
44 CSDS CodeJitsu Failed POV POV Watch
44 CSDS DeepRed Failed POV POV Watch
44 CSDS Disekt Failed POV POV Watch
44 CSDS ForAllSecure Failed POV POV Watch
44 CSDS Shellphish Failed POV POV Watch
44 CSDS TECHx Failed POV POV Watch
44 DeepRed CodeJitsu Failed POV POV Watch
44 DeepRed CSDS Failed POV POV Watch
44 DeepRed Disekt Failed POV POV Watch
44 DeepRed ForAllSecure Failed POV POV Watch
44 DeepRed Shellphish Failed POV POV Watch
44 DeepRed TECHx Failed POV POV Watch
44 ForAllSecure CodeJitsu Failed POV POV Watch
44 ForAllSecure CSDS Failed POV POV Watch
44 ForAllSecure DeepRed Failed POV POV Watch
44 ForAllSecure Disekt Failed POV POV Watch
44 ForAllSecure Shellphish Failed POV POV Watch
44 ForAllSecure TECHx Failed POV POV Watch
45 CSDS CodeJitsu Failed POV POV Watch
45 CSDS DeepRed Failed POV POV Watch
45 CSDS Disekt Failed POV POV Watch
45 CSDS ForAllSecure Failed POV POV Watch
45 CSDS Shellphish Failed POV POV Watch
45 CSDS TECHx Failed POV POV Watch
45 DeepRed CodeJitsu Failed POV POV Watch
45 DeepRed CSDS Failed POV POV Watch
45 DeepRed Disekt Failed POV POV Watch
45 DeepRed ForAllSecure Failed POV POV Watch
45 DeepRed Shellphish Failed POV POV Watch
45 DeepRed TECHx Failed POV POV Watch
45 ForAllSecure CodeJitsu Failed POV POV Watch
45 ForAllSecure CSDS Failed POV POV Watch
45 ForAllSecure DeepRed Failed POV POV Watch
45 ForAllSecure Disekt Failed POV POV Watch
45 ForAllSecure Shellphish Failed POV POV Watch
45 ForAllSecure TECHx Failed POV POV Watch
46 CSDS CodeJitsu Failed POV POV Watch
46 CSDS DeepRed Failed POV POV Watch
46 CSDS Disekt Failed POV POV Watch
46 CSDS ForAllSecure Failed POV POV Watch
46 CSDS Shellphish Failed POV POV Watch
46 CSDS TECHx Failed POV POV Watch
46 DeepRed CodeJitsu Failed POV POV Watch
46 DeepRed CSDS Failed POV POV Watch
46 DeepRed Disekt Failed POV POV Watch
46 DeepRed ForAllSecure Failed POV POV Watch
46 DeepRed Shellphish Failed POV POV Watch
46 DeepRed TECHx Failed POV POV Watch
46 ForAllSecure CodeJitsu Failed POV POV Watch
46 ForAllSecure CSDS Failed POV POV Watch
46 ForAllSecure DeepRed Failed POV POV Watch
46 ForAllSecure Disekt Failed POV POV Watch
46 ForAllSecure Shellphish Failed POV POV Watch
46 ForAllSecure TECHx Failed POV POV Watch

Curated by Lunge Technology, LLC. Questions or comments? Send us email