{"vulnerability": "CVE-2021-42717", "sightings": [{"uuid": "20f1d518-51c7-47e4-a3ff-b339aba3a8d9", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-42717", "type": "seen", "source": "https://t.me/cibsecurity/33533", "content": "\u203c CVE-2021-42717 \u203c\n\nModSecurity 3.x through 3.0.5 mishandles excessively nested JSON objects. Crafted JSON objects with nesting tens-of-thousands deep could result in the web server being unable to service legitimate requests. Even a moderately large (e.g., 300KB) HTTP request can occupy one of the limited NGINX worker processes for minutes and consume almost all of the available CPU on the machine. Modsecurity 2 is similarly vulnerable: the affected versions include 2.8.0 through 2.9.4.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2021-12-08T00:23:12.000000Z"}]}