Automating OWASP ZAP - DevCSecCon talk

The OWASP Foundation
http://www.owasp.org
Copyright © The OWASP Foundation
Permission is granted to copy, distribute and/or modify this document under the terms of the OWASP License.
Workshop:
Automating
OWASP ZAP
Simon Bennetts
OWASP ZAP Project Lead
Mozilla Cloud Security Team
psiinon@gmail.com
DevSecCon
London 2016

The Workshop Plan
• Who is this for?
• What are we trying to solve?
• What can you get out of this?
• Introduction to ZAP
• Where to start
• Where to go from there
2

Who is this for?
• Developers
• QA
• Operations
• Security
• Consultants
• (Managers)
• Whoever is involved in automation ;)
3

What are we trying to solve?
• Find security issues as early as possible
• Integration into the devops pipeline
• Finding all of the possible vulnerabilities
• Putting pentesters out of a job :P
4
What are we not trying to solve?

What can you get out of this?
• A way to quickly evaluate your apps
• Options for more thorough scanning
• An introduction to the ZAP API
• A chance to try things out with me
5

6
ZAP Introduction
• An easy to use webapp pentest tool
• Completely free and open source
• OWASP Flagship project
• Ideal for beginners
• But also used by professionals
• Ideal for devs, esp. for automated security tests
• Included in all major security distributions
• ToolsWatch.org Top Security Tool of 2015
• Not a silver bullet!

7
ZAP Features
• Swing based UI for desktop mode
• Comprehensive REST(ish) API for daemon mode
• Plugin architecture (add-ons)
• Online ‘marketplace’ (all free:)
• Release, beta and alpha quality add-ons
• Traditional and ajax spiders
• Passive and active scanning
• Highly configurable, eg scan policies
• Highly scriptable

Some ZAP use cases
• Point and shoot – the Quick Start tab
• Proxying via ZAP, and then scanning
• Manual pentesting
• Automated security regression tests
• Debugging
• Part of a larger security program
8

ZAP Install Options
• Windows .exe
• Linux .tar.gz
• Mac OS .dmg
• Docker Images
• owasp/zap2docker-stable
• owasp/zap2docker-weekly
• Distros like Kali
9

Where to start?
• The Baseline scan
• Completely safe
• Runs quickly (1-2 minutes?)
• Can be easily integrated into CI/CD
• Easy to get started – just required the target:
docker pull owasp/zap2docker-weekly
docker run -t owasp/zap2docker-weekly zap-baseline.py
-t https://www.example.com
• Very configurable if needed
10

Baseline scan
• Uses docker (the only dependency)
• Time limited spider of target (default 1 min)
• Just passive scanning
• By default warns on all issues
• Can change to ignore, info or fail
• Can include any ZAP cmdline option
• Can ignore any url regex for any rule
11

Baseline scan - issues
• All release and beta passive scan rules, eg
• Missing / incorrect security headers
• Cookie problems
• Information / error disclosure
• Missing CSRF tokens
•...
• Can optionally include alpha pscan rules
12

Baseline scan – usage
14
Usage: zap-baseline.py -t <target> [options]
-t target target URL including the protocol, eg
Options:
-c config_file config file to use to INFO, IGNORE or
-u config_url URL of config file to use to INFO, IG
-g gen_file generate default config file (all rul
-m mins the number of minutes to spider for (
-r report_html file to write the full ZAP HTML repor
-w report_md file to write the full ZAP Wiki (Mark
-x report_xml file to write the full ZAP XML report
-a include the alpha passive scan rules
-d show debug messages
-i default rules not in the config file
-j use the Ajax spider in addition to th
-l level minimum level to show: PASS, IGNORE,
-s short output format - dont show PASSe
-z zap_options ZAP command line options e.g. -z "-co

Baseline scan – output
15
./zap-baseline.py -t https://www.example.com
3 URLs
PASS: Cookie No HttpOnly Flag [10010]
PASS: Cookie Without Secure Flag [10011]
PASS: Password Autocomplete in Browser [10012]
<snip>
WARN: Incomplete or No Cache-control and Pragma HTTP Header
https://www.example.com
WARN: Web Browser XSS Protection Not Enabled [10016] x 3
https://www.example.com/robots.txt
https://www.example.com/sitemap.xml
WARN: X-Frame-Options Header Not Set [10020] x 1
WARN: X-Content-Type-Options Header Missing [10021] x 1
FAIL: 0 WARN: 4 INFO: 0 IGNORE: 0 PASS: 22

Baseline scan – in CircleCI
• https://github.com/Securing-
DevOps/invoicer/blob/master/circle.yml#L39-L44
16
# pull down the Zap baseline scanner
- docker pull owasp/zap2docker-weekly
# Run zap against the invoicer
- docker run ${DOCKER_REPO}/${CIRCLE_PROJECT_REPONAME} &
- docker run -t owasp/zap2docker-weekly zap-baseline.py
-t http://172.17.0.2:8080/

Baseline scan – conf file
• Use -g option to generate, -c or -u to use
17
# zap-baseline rule configuration file
# Change WARN to IGNORE to ignore rule or FAIL to fail if
# Only the rule identifiers are used - the names are just
# You can add your own messages to each rule by appending
10010 WARN(Cookie No HttpOnly Flag)
10011 WARN(Cookie Without Secure Flag)
10012 WARN(Password Autocomplete in Browser)
10015 WARN(Incomplete or No Cache-control and Pragma HTTP
10016 WARN(Web Browser XSS Protection Not Enabled)
10017 WARN(Cross-Domain JavaScript Source File Inclusion)
10019 WARN(Content-Type Header Missing)
10020 WARN(X-Frame-Options Header Scanner)
10021 WARN(X-Content-Type-Options Header Missing)
10023 WARN(Information Disclosure - Debug Error Messages)
10024 WARN(Information Disclosure - Sensitive Information

Where next?
• Mass Baseline scan
• Provides a simple dashboard
• Shows the detailed results
• Shows the per service history
18

Mass Baseline scan
• Part of the community-scripts repo:
zaproxy/community-scripts/api/mass-baseline
19

Full Scans
• Packaged options:
• Cmdline quick scan
• Jenkins plugin
• Sdlc-integration scripts
• Daemon mode + API
• (ZAP as a Service – in development)
20

Cmdline Quick Scan
21
./zap.sh -cmd -quickurl
http://example.com/ -quickprogress
• Spidering
• Active scanning
• [====================] 100%
• Attack complete
• <?xml version="1.0"?><OWASPZAPReport
version="2.5.0" generated="Tue, 4 Oct
2016 09:31:53">
• <site name="http://example.com" ...

Jenkins plugin
• Maintained by 3rd
party
• Requires full ZAP install
• Supports authentication
• Supports scan policies
• Not as flexible as driving the API
22

Sdlc integration scripts
• Part of the community-scripts repo:
zaproxy/community-scripts/api/sdlc-integration
• Spidering, passive and active scanning
• Supports authentication
• Supports JIRA integration
• Linux only, requires some file editing
23

Useful cmdline options
• Turn off db recovery (speeds things up)
-config database.recoverylog=false
• Update all add-ons
-addonupdate
• Install a non default add-on
-addoninstall addonname
• Setting the API key
-config api.key=j8WdOEq8dhwWE24VGDsreP
• Disable API key in a safe environment
-config api.disablekey=true
24

Using the ZAP API
• Intro to the API
• Exploring
• Scanning
• Reporting
• Authenticating
• Tuning
25

Intro to the API
• RESTish – ok, only uses GET requests
http(s)://zap/<format>/<component>/
<operation>/<op name>[/?<params>]
• Maps closely to the UI / code
• Theres a v basic web UI for it
• And clients in various langs:
Java, Python, Node JS, .Net, PHP, Go …
• Clients are generated from the code
26

API Pro Tip
1. Experiment with the Desktop UI
2. Export configs from the UI (contexts, scan
policies..)
3. Then reproduce using the API UI
4. Finally convert to a script
27

Intro – Python API
• Install from pypi:
pip install python-owasp-zap-v2.4
• In your script:
from zapv2 import ZAPv2
zap = ZAPv2()
zap = ZAPv2(proxies={
'http': 'http://localhost:8080',
'https': 'http://localhost:8090'})
29
h
from zapv2 import ZAPv2
zap = ZAPv2()
zap = ZAPv2(proxies={
'http': 'http://localhost:8080',
'https': 'http://localhost:8080'})
• zap.urlopen(target)
• pip install python-owasp-zap-v2.4

Exploring
• Proxy Regression / Unit tests
• Traditional Spider (crawler)
• Ajax Spider (browsers)
• Spider SOAP definition (via alpha add-on)
• Import ModSecurity2 logs (via alpha add-on)
30

Exploring – Trad Spider
32
h
zap.spider.scan(target)
• time.sleep(5)
• while int(zap.spider.status()) < 100:
• print ('Spider progress %: ' +
zap.spider.status())
• time.sleep(5)
• print ('Spider completed')

Exploring – Ajax Spider
33
h
zap.ajaxSpider.scan(target)
• time.sleep(5)
• while zap.ajaxSpider == 'running':
• print ('Ajax Spider # results: ' +
zap.ajaxSpider.number_of_results())
• time.sleep(5)
• print ('Ajax Spider completed')

Scanning – Passive Scan
34
while int(zap.pscan.records_to_scan())
> 0:
• print ('Pscan records : ' +
zap.pscan.records_to_scan())
• time.sleep(5)
• print ('Pscan completed')
h
• Passive scanning happens automatically
when proxying
• To tell when its finished:

Scanning – Active Scan
35
h
zap.ascan.scan(target)
• time.sleep(5)
• while int(zap.ascan.status()) < 100:
• print ('Ascan progress %: ' +
zap.ascan.status())
• time.sleep(5)
• print ('Ascan completed')

Reporting – HTML + XML
36
h
# HTML Report
• with open ('report.html', 'w') as f:
f.write(zap.core.htmlreport())
# XML Report
• with open ('report.xml', 'w') as f:
f.write(zap.core.xmlreport())

Reporting – all alert data
37
h
# Use paging for lots of alerts
• offset = 0; page = 100
• alerts = zap.core.alerts('', offset, page)
• while len(alerts) > 0:
• for alert in alerts:
• # Do whatever you want with alert
• offset += page
• alerts = zap.core.alerts('', offset,
page)

And dont forget...
38
h
# Your work here is done...
• zap.core.shutdown()

Any questions about the
API?
39
h

Authenticating
• Authentication can be hard :(
• Simple form based auth should be ok
• Authentication scripts should be able to
handle anything
• But if you have complex SSO or equiv you
may want a simpler option in your test env
• Pro Top: use the UI to set authentication up!
40

Tuning - speed
• Spider time limits
• Data driven content
• Technology
• Active scan
• Scan rules
• Input vectors
• Attack strength
42

Tuning - feedback
• Active scan stats
• Response stats
• Authentication stats (alpha add-on)
• Statsd support
43

Tuning - accuracy
• Attack thresholds
• Rule configuration (post 2.5.0)
– Forms that dont need CSRF tokens
– Increase timing attacks from 5 seconds
44

Need help?
• Getting Started Guide
• Desktop Help (also online)
• Wiki – FAQ, Docs, Videos …
• ZAP User Group
• irc.mozilla.org #websectools
45

Workshop Summary
• Use the baseline scan for a quick security
overview
• Use the mass baseline to create a dashboard
• Use full ZAP scans for more depth
• Configure ZAP to authenticate for even better
results
• If you need help, just ask!
46

Now go forth and
automate ZAP :)
http://www.owasp.org/index.php/ZAP

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