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Atomicorp WAF Rule 303800

Rule Summary

  • Rule ID: 303800
  • Status: Active
  • Alert message: Atomicorp.com WAF Rules: Fake Googlebot webcrawler
  • Observed CWEs: None documented
  • Revision: 3
  • Rule severity: Critical (2)
  • Phase: 1 (request headers)
  • Rule action: deny
  • HTTP status: 403
  • Logging: log, auditlog

Description

This exclusive capability in the Atomicorp ruleset can detect when a client pretends to be the google webcrawler. This helps to detect and block potential zero day and other supsicious behavior. Attacks have been know to impersonate webcrawlers to trick naive applications that blinding trust webcrawlers. They use this method to gain access that would otherwise be blocked to non-crawlers.

This will not block the real google webcrawler. We do not recommend you disable this rule.

For ASL users, if you enable the option below, ASL will automatically and dynamically whitelist the real google webcrawler from all WAF events:

Troubleshooting

False Positives

There are no known false positives with this rule. Please do not report this as a false positive if you are using a proxy, CDN or other similar service and your web server is not setup per this article:

If you have confirmed your webserver is setup correctly, per the article above, and you have performed the troubleshooting in that article, and still believe this is a false positive, please report this following the process at the link below:

And be sure to also include the troubleshooting steps you took to ensure your proxy and/or CDN is setup correctly to use these rules. If you are unable to do this troubleshooting yourself, please let us know and we would be happy to have our professional services team put a quote together for you and take care of this for you.

Tuning Guidance

Please see the Tuning the Atomicorp WAF Rules page for more information if you wish to disable or modify this rule.

This is a selected list of documented research observations, not an exhaustive coverage matrix. Absence of a CVE does not imply absence of protection.

No selected related public CVE research notes are currently published.

Documentation Source

  • Original wiki page: WAF 303800
  • Source revision: 6063
  • Source revision date: 2020-08-24