title: Remote Code Execution via Serialized Session Payload
description: In Splunk Enterprise versions lower than 8.2.12, 9.0.6, and 9.1.1, an attacker can execute a specially crafted query that they can then use to serialize untrusted data. The attacker can use the query to execute arbitrary code.
problem types: The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.
affected:
{
product: Splunk Enterprise
vendor: Splunk
versions:
version: 8.2, status: affected, versionType: custom, lessThan: 8.2.12
version: 9.0, status: affected, versionType: custom, lessThan: 9.0.6
version: 9.1, status: affected, versionType: custom, lessThan: 9.1.1
}
{
product: Splunk Cloud
vendor: Splunk
versions:
version: -, status: affected, versionType: custom, lessThan: 9.0.2305.200
}
metrics:
cvssV3_1: [
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
version: 3.1
baseScore: 8.8
baseSeverity: HIGH
]
format: CVSS
scenarios: GENERAL