CVE-2019-6340 on CISA KEV

Some field types do not properly sanitize data from non-form sources in Drupal 8.5.x before 8.5.11 and Drupal 8.6.x before 8.6.10. This can lead to arbitrary PHP code execution in some cases. A site is only affected by this if one of the following conditions is met: The site has

01What CISA says about this vulnerability

Some field types do not properly sanitize data from non-form sources in Drupal 8.5.x before 8.5.11 and Drupal 8.6.x before 8.6.10. This can lead to arbitrary PHP code execution in some cases. A site is only affected by this if one of the following conditions is met: The site has the Drupal 8 core RESTful Web Services (rest) module enabled and allows PATCH or POST requests, or the site has another…

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• www.synology.com — https://www.synology.com/security/advisory/Synology_SA_19_09
• www.exploit-db.com — https://www.exploit-db.com/exploits/46452/
• www.drupal.org — https://www.drupal.org/sa-core-2019-003
• www.exploit-db.com — https://www.exploit-db.com/exploits/46510/
• www.securityfocus.com — http://www.securityfocus.com/bid/107106
• www.exploit-db.com — https://www.exploit-db.com/exploits/46459/

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
Drupal	Drupal Core	8.5, 8.6

06Detection

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection:

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