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Troubleshooting

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Table of contents

Docker

To troubleshoot hawkscan errors related to networking, disk access or unexplained failures it may be necessary to inspect the hawkscan docker container itself.

Add the --entrypoint=bash option to your docker command to start the hawkscan container without running the usual entrypoint, the shawk command.

docker run -e API_KEY=$HAWK_API_KEY --rm --name hawkscan --entrypoint=bash -v $(pwd):/hawk -it stackhawk/hawkscan

After running the above command you will be at bash terminal in the hawkscan container as the zap user in the /zap directory.

Networking Option

If the scanner is having trouble connecting to an application running on localhost, try adding the --network=host option.

docker run -e API_KEY=$HAWK_API_KEY --rm --name hawkscan --network=host -v $(pwd):/hawk -it stackhawk/hawkscan

Inspect scan logs

In order to retrieve scan logs, run the command hawk download log {scanId} with the StackHawk CLI or in the bash terminal of the HawkScan Docker container. More details on this can be found in the StackHawk CLI Documentation

Inspect local Docker scan logs

Run the shawk command in the bash terminal to kick off a scan.

zap@732aa0ebcfdd:/zap$ shawk

When the shawk command completes you can check the log files for errors of interest.

HawkScan versions prior to 2.0.0

zap@732aa0ebcfdd:/zap$ cat zap.out

HawkScan 2.0.0 and greater

zap@732aa0ebcfdd:/zap$ cat /home/zap/.hawk/logs/hawkscan.log /home/zap/.hawk/sessions/*/hawkscan.log

The /home/zap/.hawk/logs/hawkscan.log file contains logs from the startup process and can be useful when troubleshooting connectivity issues to the StackHawk platform and for inspecting the command created for the ZAP scanner process.

The /home/zap/.hawk/sessions/*/hawkscan.log file contains the ZAP scan log. The * is a replacement for the session directory that is created at runtime. The real directory will be the scan UUID ie: d5b30c85-5936-489c-b530-1977e07685b7.

The /hawk volume mount

Sometimes the scanner may not have the correct permissions to access the host volume mount specified with the -v $(pwd):/hawk option.

Check the permissions of the /hawk directory by runningā€¦

zap@732aa0ebcfdd:/zap$ ls -lah /hawk

Read permissions to the /hawk directory will be required for the zap user in the hawkscan container.

Disk permissions and access

In some cases running the hawkscan container as the root user is required for hawkscan to access the docker host machines file system. In this case you can run the docker command with the --user=root flag.

docker run -e API_KEY=$HAWK_API_KEY --rm --name hawkscan --user=root -v $(pwd):/hawk -it stackhawk/hawkscan

Script debugging

To debug your custom scripts you should take advantage of logging your scripts activity with a logger.

import org.apache.log4j.LogManager
val logger = LogManager.getLogger("my-script")

From the hawkscan container bash terminal run the shawk command and look for the log statements from your script.

zap@732aa0ebcfdd:/zap$ shawk

HawkScan versions prior to 2.0.0

zap@732aa0ebcfdd:/zap$ cat zap.out | grep my-script

As a single commandā€¦

docker run -e API_KEY=$HAWK_API_KEY --rm --name hawkscan --entrypoint=bash -v $(pwd):/hawk -it stackhawk/hawkscan -c 'shawk; cat zap.out | grep my-script'

HawkScan 2.0.0 and greater

zap@732aa0ebcfdd:/zap$ cat /home/zap/.hawk/sessions/*/hawkscan.log | grep my-script

As a single commandā€¦

docker run -e API_KEY=$HAWK_API_KEY --rm --name hawkscan --entrypoint=bash -v $(pwd):/hawk -it stackhawk/hawkscan -c 'shawk; cat /home/zap/.hawk/sessions/*/hawkscan.log | grep my-script'

Incomplete or Missing URLs Found by Spider

To scan your application effectively, it is important that HawkScan find all the paths being served by your application. By default, HawkScan will first run a web crawler or ā€œspiderā€ to discover all the paths of your application before running active scans. For example you will see output on the terminal that will look something like this:

[INFO] shawk 2019-10-10 17:44:20,868 Spider complete
[INFO] shawk 2019-10-10 17:44:20,875 24 URLs after spiders
  http://localhost:3000
  http://localhost:3000/about
  http://localhost:3000/assets
  http://localhost:3000/assets/account_activation.self-877aef30ae1b040ab8a3aba4e3e309a11d7f2612f44dde450b5c157aa5f95c05.js?body=1
  http://localhost:3000/assets/account_activations.self-e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855.css?body=1
  http://localhost:3000/assets/action_cable.self-69fddfcddf4fdef9828648f9330d6ce108b93b82b0b8d3affffc59a114853451.js?body=1
  http://localhost:3000/contact
  http://localhost:3000/help
  http://localhost:3000/microposts
  http://localhost:3000/microposts/2
  http://localhost:3000/microposts/56
  http://localhost:3000/microposts/8
  http://localhost:3000/robots.txt
  http://localhost:3000/search
  http://localhost:3000/searchresults
  http://localhost:3000/sitemap.xml
  http://localhost:3000/users
  http://localhost:3000/users/1
  http://localhost:3000/users/1/followers
  http://localhost:3000/users/1/following
  http://localhost:3000/users/2
  http://localhost:3000/users/2/edit
  http://localhost:3000/users/2/followers
  http://localhost:3000/users/2/following
Scan status Stock-Default-Policy (http://host.docker.internal:3000) [4%]

If you do not see URLs and paths that you expect your application to serve, you may need to modify your stackhawk.yml to include form authentication or an api specification. See the app.authentication, app.openApiConf, app.graphQLConf, and app.soapConf configuration help for more detail.

Networking

Problem: localhost scans fail, returning the following error:

Error: Unable to scan localhost on ports 0..1023. Please use a permitted port 1024..65535 to proceed.

Solution: HawkScan reports this error when a kernel port (0..1023) is set to a scan against localhost.

HawkScan runs in an unprivileged container which provides permissions for the userland context only. This requires scans against localhost to use a permitted ephemeral port (eg. 1024-65535).

Please refer to the Docker User Guide for more information.

Still Stuck? contact StackHawk Support

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