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Atomicorp WAF Rule 390583

Rule Summary

  • Rule ID: 390583
  • Status: Active
  • Alert message: Atomicorp.com WAF Rules: Attack Blocked - Data leakage - attempt to access backup file (disable this rule if you require access to files that end with .old)
  • Observed CWEs: None documented
  • Revision: 1
  • Rule severity: Critical (2)
  • Phase: 2 (request body)
  • Request surfaces: Request filename
  • Rule action: deny
  • HTTP status: 403
  • Logging: log, auditlog

Description

This rule detects if a file that ends in the .old extension.

Some applications use the .old extension to save files that store temporary or backup files. Sensitive information is often stored in such temporary files.

False Positives

A false positive can occur when you need to access a file with .old extension.

It is not recommended that you disable this rule if you have a false positive. If you believe this is a false positive, please report this to our security team to determine if this is a legitimate case, or if its clever attack on your system. Instructions to report false positives are detailed on the Reporting False Positives wiki page. If it is a false positive, we will fix the issue in the rules and get a release out to you promptly.

Tuning Guidance

If you know that this behavior is acceptable for your application, you can tune it by identifying the argument that is being triggered, and specifically allowing that argument for that application to allow a URL. Please see the Tuning the Atomicorp WAF Rules page for basic information.

Similar Rules

WAF_390581

WAF_390582

WAF_390584

WAF_390586

WAF_390587

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 390583
  • Source revision: 1739
  • Source revision date: 2011-07-21