Prisma Cloud Compute : Runtime Audit Event not generated when New file uploaded from Webshell

Prisma Cloud Compute : Runtime Audit Event not generated when New file uploaded from Webshell

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Created On 11/01/22 03:59 AM - Last Modified 02/22/23 09:58 AM


Symptom


  • Runtime Audit Event not generated when New file uploaded from Webshell.
Example
  • Default Runtime Rule configured to detect any new file uploaded in /var/www/html/hackable/uploads.

 

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  • File is uploaded successfully from GUI.
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  • When the file is modified or new added in CLI, Runtime Event is Detected.
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  • However, same does not work when a new file is uploaded from Webshell of same application.


Environment


  • Prisma Cloud Compute


Cause


  • At this time, Prisma Cloud doesn't detect Move events as part of our detection.
  • We only detect write events to files as moving a file is not really a “write“ event as it does not modify the file content.
  • This behaviour is expected and as per current product design where our main focus with FS runtime detection is to alert on a file being created/changed in a container, which is the root of an attack.


Resolution


  • If there is a requirement of detection of file movement, it will be considered as Enhancement feature request.


Additional Information




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