Vulnerability · Published Aug 30, 2023 · Assigned by Splunk
CVE-2023-40593Denial of Service (DoS) in Splunk Enterprise Using a Malformed SAML Request
Medium 6.3
In plain English
A medium-severity uncontrolled resource consumption 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 0.6% (higher than 48% of all known vulnerabilities).
Severity (CVSS 3.1)6.3Medium
Exploit odds (30 days)0.6%top 52.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
In Splunk Enterprise versions lower than 9.0.6 and 8.2.12, a malicious actor can send a malformed security assertion markup language (SAML) request to the `/saml/acs` REST endpoint which can cause a denial of service through a crash or hang of the Splunk daemon.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Splunk | Splunk Enterprise | 8.2 – before 8.2.129.0 – before 9.0.6 |
| Splunk | Splunk Cloud | - – before 9.0.2205 |
Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H