Vulnerability Details : CVE-2023-40593
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.
Vulnerability category: Denial of service
Products affected by CVE-2023-40593
- cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
- cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
- cpe:2.3:a:splunk:splunk_cloud_platform:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-40593
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 38 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-40593
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST | |
|
6.3
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H |
1.8
|
4.0
|
Splunk Inc. |
References for CVE-2023-40593
-
https://advisory.splunk.com/advisories/SVD-2023-0802
SVD-2023-0802 | Splunk Vulnerability DisclosureVendor Advisory
-
https://research.splunk.com/application/8e8a86d5-f323-4567-95be-8e817e2baee6/
Splunk DoS Using Malformed SAML Request - Splunk Security ContentVendor Advisory
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