Tool Documentation:

sfuzz Usage Example

Fuzz the target server (-S 192.168.1.1) on port 10443 (-p 10443) with TCP output mode (-T), using the basic HTTP config (-f /usr/share/sfuzz/sfuzz-sample/basic.http):

root@kali:~# sfuzz -S 192.168.1.1 -p 10443 -T -f /usr/share/sfuzz/sfuzz-sample/basic.http
[12:53:47] dumping options:
    filename: </usr/share/sfuzz/sfuzz-sample/basic.http>
    state:    <8>
    lineno:   <56>
    literals:  [74]
    sequences: [34]
    symbols: [0]
    req_del:  <200>
    mseq_len: <10024>
    plugin: <none>
    s_syms: <0>
    literal[1] = [AREALLYBADSTRING]

Packages and Binaries:

sfuzz

Black Box testing utilities
In the same vein as the Generic Protocol Framework, sfuzz is a really simple to use black box testing suite called Simple Fuzzer (what else would you expect?). The goal is to provide a simple to use, but fairly powerful and flexible black box testing utility.

Installed size: 191 KB
How to install: sudo apt install sfuzz

Dependencies:
  • libc6
sfo
root@kali:~# sfo -h
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720902].
[720902] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720906].
[720906] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720907].
[720907] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720908].
[720908] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720909].
[720909] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720910].
[720910] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720911].
[720911] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720912].
[720912] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720913].
[720913] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720914].
[720914] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720923].
[720923] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720924].
[720924] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720925].
[720925] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720926].
[720926] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720927].
[720927] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720928].
[720928] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720929].
[720929] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720938].
[720938] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720939].
[720939] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720940].
[720940] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720941].
[720941] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720942].
[720942] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720943].
[720943] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720944].
[720944] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720945].
[720945] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720946].
[720946] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720953].
[720953] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [720956].
[720956] Exited (possibly normal), status[255]
 [sfo] === spawning!
[] Attempting to spawn a monitored task.
[SFUZZ-ORACLE] attached [72095
sfuzz
root@kali:~# sfuzz -h
		Simple Fuzzer
By:	 Aaron Conole
version: 0.7.0
url:	 http://aconole.brad-x.com/programs/sfuzz.html
EMAIL:	 [email protected]
Build-prefix: /usr
	-h	 This message.
	-V	 Version information.

networking / output:
	-v	 Verbose output
	-q	 Silent output mode (generally for CLI fuzzing)
	-X	 prints the output in hex

	-b	 Begin fuzzing at the test specified.
	-e	 End testing on failure.
	-t	 Wait time for reading the socket
	-S	 Remote host
	-p	 Port
	-T|-U|-O TCP|UDP|Output mode
	-R	 Refrain from closing connections (ie: "leak" them)

	-f	 Config File
	-L	 Log file
	-n	 Create a new logfile after each fuzz
	-r	 Trim the tailing newline
	-D	 Define a symbol and value (X=y).
	-l	 Only perform literal fuzzing
	-s	 Only perform sequence fuzzing


Updated on: 2026-May-25