CVE-2023-40593
Denial of Service (DoS) in Splunk Enterprise Using a Malformed SAML Request
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
*Credits:
Aaron Devaney (Dodekeract)
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-08-16 CVE Reserved
- 2023-08-30 CVE Published
- 2025-02-28 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-400: Uncontrolled Resource Consumption
CAPEC
References (2)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://advisory.splunk.com/advisories/SVD-2023-0802 | 2024-04-10 | |
| https://research.splunk.com/application/8e8a86d5-f323-4567-95be-8e817e2baee6 | 2024-04-10 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Splunk Search vendor "Splunk" | Splunk Search vendor "Splunk" for product "Splunk" | >= 8.2.0 < 8.2.12 Search vendor "Splunk" for product "Splunk" and version " >= 8.2.0 < 8.2.12" | enterprise |
Affected
| ||||||
| Splunk Search vendor "Splunk" | Splunk Search vendor "Splunk" for product "Splunk" | >= 9.0.0 < 9.0.6 Search vendor "Splunk" for product "Splunk" and version " >= 9.0.0 < 9.0.6" | enterprise |
Affected
| ||||||
| Splunk Search vendor "Splunk" | Splunk Cloud Platform Search vendor "Splunk" for product "Splunk Cloud Platform" | <= 9.0.2305.100 Search vendor "Splunk" for product "Splunk Cloud Platform" and version " <= 9.0.2305.100" | - |
Affected
| ||||||