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
* 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
- 2024-08-02 CVE Updated
- 2024-09-05 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
| ||||||