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Title : Autopwn - Automate Repetitive Tasks For Fuzzing
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Autopwn - Automate Repetitive Tasks For Fuzzing

Warning

Completely re-writing this correct now. Focus volition live on on interactive Linux apps that entirely accept input from stdin for starters. Attempting to usage Shellphish's Driller in addition to Fuzzer functionality.

autoPwn inwards it's electrical flow country volition practise this inwards express form. Simply run autoPwn ./binary in addition to then choose the Start option.

Installing

Given all the dependency issues here, the easiest means to larn autoPwn upwardly in addition to running is to usage the Docker build. Note, yous tin take the --security-opt in addition to --cap-add statement, but about fuzzing aspects mightiness non work.

$ sudo docker push clit bannsec/autoPwn $ sudo docker run -it -v $PWD:/mount --security-opt="apparmor=unconfined" --cap-add=SYS_PTRACE bannsec/autoPwn

In the Docker build, everything should live on gear upwardly to go. You tin but start upwardly the tool with:

$ autoPwn ./file

Compiling source for fuzzing
autoPwn attempts to brand compiling source for fuzzing a projection easier. To assistance alongside this, autoPwnCompile was created. Just betoken it at your source code, in addition to hand it options in addition to it volition output an executable gear upwardly to live on fuzzed.

usage: autoPwnCompile [-h] [--file FILE] [--ASAN | --MSAN] [--UBSAN]                       [--fuzzer FUZZER]  Compile source to binaries for usage inwards autoPwn.  optional arguments:   -h, --help       exhibit this assistance message in addition to larn out   --file FILE      Single file to compile.   --ASAN           Enable ASAN (default off)   --MSAN           Enable MSAN (default off)   --UBSAN          Enable UBSAN (default off)   --fuzzer FUZZER  (optional) What fuzzer to compile for. Options are:                    ['AFL']. Default is AFL.

The below is from the OLD version of autoPwn..

Overview

autoPwn is a lofty cite for a unproblematic script. When working alongside fuzzing in addition to afl-fuzz, I noticed that I would practise the same tasks over in addition to over. With this inwards mind, I wanted to practise a script that would orbit the following:

1. Automate in addition to simplify the draw of starting the fuzzer through smart prompts
2. Automate in addition to simplify the draw of restarting the fuzzer through a config file
3. Fully automate the procedure of afl queue minimizations
4. Fully automate the procedure of extracting in addition to minimizing all possible exploitable paths
5. Fully automate the procedure of extracting in addition to minimizing all possible paths inwards general.
6. Fully or partially automate the generation of initial path values.

So far, the script is able to the get-go 5. Part vi is speculative in addition to attempting evolution correct now. It would leverage the angr symbolic execution engine to practise possible initial paths. At that point, the script could theoretically fully automate simple fuzzing tasks.

Example

Let's accept a await at a recent TUCTF challenge called "WoO2". While it doesn't necessarily regain the needed exploit, it does exhibit how autoPwn tin live on used to simplify path discovery.

Here's a basic run through the program:

$ ./e67eb287f23011a40ef5bd5c2ad2f48ca97834cf  Welcome! I don't intend we're inwards Kansas anymore. We're well-nigh to caput off on an adventure! Select about animals yous desire to convey along.  Menu Options: 1: Bring a Panthera leo 2: Bring a tiger 3: Bring a behavior 4: Delete Animal 5: Exit  Enter your choice: 1 Choose the type of Panthera leo yous want: 1: Congo Lion 2: Barbary Lion 1 Enter cite of lion: Test Menu Options: 1: Bring a Panthera leo 2: Bring a tiger 3: Bring a behavior 4: Delete Animal 5: Exit  Enter your choice: 5

Let's practise a unproblematic input exam case:

$ truthful cat in/1  1 1 Test 5

Now nosotros tin easily start upwardly the fuzzer:

$ autoPwn  Setting upwardly fuzz configuration Target Binary (full or relative path): e67eb287f23011a40ef5bd5c2ad2f48ca97834cf Command draw args:  Number of cores (default: 8):  Test Case Dir (default: 'in/'):  Test Case Dir (default: 'out/'):  Max retention (default: 200): 4096 Starting fuzz autoPwn> s condition banking concern agree tool for afl-fuzz past times   Individual fuzzers ==================  >>> SESSION007 (0 days, 0 hrs) <<<    cycle 1, lifetime speed 1 execs/sec, path 0/1 (0%)   pending 1/1, coverage 0.15%, no crashes nevertheless  >>> SESSION000 (0 days, 0 hrs) <<<    cycle 1, lifetime speed 1 execs/sec, path 0/1 (0%)   pending 1/1, coverage 0.15%, no crashes nevertheless  >>> SESSION002 (0 days, 0 hrs) <<<    cycle 1, lifetime speed 1 execs/sec, path 0/1 (0%)   pending 1/1, coverage 0.15%, no crashes nevertheless  >>> SESSION006 (0 days, 0 hrs) <<<    cycle 1, lifetime speed 1 execs/sec, path 0/1 (0%)   pending 1/1, coverage 0.15%, no crashes nevertheless  >>> SESSION004 (0 days, 0 hrs) <<<    cycle 1, lifetime speed 1 execs/sec, path 0/1 (0%)   pending 1/1, coverage 0.15%, no crashes nevertheless  >>> SESSION001 (0 days, 0 hrs) <<<    cycle 1, lifetime speed 1 execs/sec, path 0/1 (0%)   pending 1/1, coverage 0.15%, no crashes nevertheless  >>> SESSION005 (0 days, 0 hrs) <<<    cycle 1, lifetime speed 1 execs/sec, path 0/1 (0%)   pending 1/1, coverage 0.15%, no crashes nevertheless  >>> SESSION003 (0 days, 0 hrs) <<<    cycle 1, lifetime speed 1 execs/sec, path 0/1 (0%)   pending 1/1, coverage 0.15%, no crashes nevertheless  Summary stats =============         Fuzzers live on : 8       Total run fourth dimension : 0 days, 0 hours          Total execs : 0 i K m     Cumulative speed : 8 execs/sec        Pending paths : 8 faves, 8 amount   Pending per fuzzer : 1 faves, 1 amount (on average)        Crashes constitute : 0 locally unique   autoPwn> h autoPwn      s == fuzzer (s)tatus      e == collect (e)xploits      a == collect (a)ll paths      m == (m)inimize corpus      q == (q)uit

So what happened hither was that the script created about default values (including determining the number of cores available). We changed i default value due to needing extra retention to run this inwards QEMU. autoPwn created a config file that it in addition to then gave to afl-utils (https://github.com/rc0r/afl-utils). In the config file, it also laid upwardly CPU affinities, thence the fuzzing would live on default optimal.

At this point, your reckoner is chucking away at fuzzing. However, i telephone commutation appear of fuzzing is minimizing the corpus. With this inwards mind, autoPwn is watching the afl-fuzz example to monitor for when a serial of the mutations are completed. When this happens, it volition halt fuzzing (non-optimal, but fine for now), minimize the corpus, in addition to then re-start fuzzing. It does this without whatsoever human intervention thence yous tin burn in addition to forget.

At about betoken yous mightiness desire to accept a await at what paths afl has found. By executing the "a" command, autoPwn volition re-create all the known paths, minimize the corpus in addition to and then minimize the cases themselves in addition to render them inwards an output directory.

Download autoPwn

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