Resource exhaustion in Splunk Enterprise - CVE-2023-40593
Published: September 4, 2023
Vulnerability identifier: #VU80318
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-40593
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when processing SAML requests. A remote user can send a malformed SAML request to the "/saml/acs" REST endpoint to trigger resource exhaustion and perform a denial of service (DoS) attack.
Affected software
Splunk Enterprise
How to mitigate CVE-2023-40593
Install updates from vendor's website.
Splunk Enterprise - addressed in versions 8.2.12, 9.0.6