Vulnerability · Published Aug 30, 2023 · Assigned by Splunk
CVE-2023-40595Remote Code Execution via Serialized Session Payload
High 8.8
In plain English
A high-severity unsafe deserialization in Splunk Cloud from Splunk. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.9%top 40.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Splunk | Splunk Enterprise | 8.2 – before 8.2.129.0 – before 9.0.69.1 – before 9.1.1 |
| Splunk | Splunk Cloud | - – before 9.0.2305.200 |
Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H