title: Denial of Service of an Investigation in Splunk Enterprise Security through Investigation attachments
description: In Splunk Enterprise Security (ES) versions below 7.1.2, an attacker can use investigation attachments to perform a denial of service (DoS) to the Investigation. The attachment endpoint does not properly limit the size of the request which lets an attacker cause the Investigation to become inaccessible.
problem types: The software does not properly control the allocation and maintenance of a limited resource thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
affected:
{
product: Splunk Enterprise Security (ES)
vendor: Splunk
versions:
version: 7.3, status: affected, versionType: custom, lessThan: 7.3.0
version: 7.2, status: affected, versionType: custom, lessThan: 7.2.0
version: 7.1, status: affected, versionType: custom, lessThan: 7.1.2
}
metrics:
cvssV3_1: [
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
version: 3.1
baseScore: 4.3
baseSeverity: MEDIUM
]
format: CVSS
scenarios: GENERAL