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This rule targets the unauthenticated SQL injection vulnerability in the WordPress Page Views Count plugin (CVE-2022-0434). The attack is performed via the post_ids parameter in a REST endpoint, as shown in the nuclei template.

  • The first rule condition matches requests to the vulnerable REST endpoint by checking if the URI contains /?rest_route=/pvc/v1/increase/, using both lowercase and urldecode transforms to ensure normalization and case insensitivity.
  • The second rule condition inspects the post_ids argument for the SQL injection pattern, specifically looking for the substring union select, which is a common indicator of SQL injection attempts. Again, lowercase and urldecode are applied for normalization.
  • The rule avoids matching on the full payload or specific numbers to reduce false positives and focuses on the SQLi vector.
  • Labels are set according to the guidelines, with the correct CVE, ATT&CK, and CWE references.

The test config and nuclei test template are adapted to only check for a 403 response, as required. All value: fields are lowercase, and the transforms ensure case insensitivity. The rule uses contains for matching, as per best practices.

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Hello @crowdsec-automation and thank you for your contribution!

❗ It seems that the following scenarios are not part of the 'crowdsecurity/appsec-virtual-patching' collection:

🔴 crowdsecurity/vpatch-CVE-2022-0434 🔴

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Hello @crowdsec-automation and thank you for your contribution!

I'm a bot that helps maintainers to validate scenarios and ensure they include all the required information.
I've found some errors in your scenarios, please fix them and re-submit your PR, or ask for help if you need it.

The following items have errors:

crowdsecurity/crs-exclusion-plugin-cpanel:

  • labels not found

crowdsecurity/crs-exclusion-plugin-dokuwiki:

  • labels not found

crowdsecurity/crs-exclusion-plugin-drupal:

  • labels not found

crowdsecurity/crs-exclusion-plugin-nextcloud:

  • labels not found

crowdsecurity/crs-exclusion-plugin-phpbb:

  • labels not found

crowdsecurity/crs-exclusion-plugin-phpmyadmin:

  • labels not found

crowdsecurity/crs-exclusion-plugin-wordpress:

  • labels not found

crowdsecurity/crs-exclusion-plugin-xenforo:

  • labels not found

Mitre ATT&CK

Information about mitre attack can be found here.
As an example, some common mitre attack techniques:

  • T1110 for bruteforce attacks
  • T1595 and T1190 for exploitation of public vulnerabilities
  • T1595 for generic scanning of exposed applications

Expected format is (where XXXX is the technique ID):

labels:
  classification:
    - attack.TXXXX

CVEs

If your scenario covers a specific CVE (Common Vulnerabilities and Exposures), please add it.

Expected format is (where CVE-XXX-XXX is the CVE ID):

labels:
  classification:
    - cve.CVE-XXX-XXX

Behaviors

Please identify the behavior(s) your scenario is targeting. You can find the list of available behaviors here.

Expected format is (where <behavior> is the behavior you want to target):

labels:
  behavior: <behavior>

See the labels documentation for more information.

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3 participants