Splunk Enterprise <9.0.6/8.2.12 DDoS via malformed SAML at /saml/acs
CVE-2023-40593 Published on August 30, 2023
Denial of Service (DoS) in Splunk Enterprise Using a Malformed SAML Request
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.
Weakness Type
What is a Resource Exhaustion Vulnerability?
The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
CVE-2023-40593 has been classified to as a Resource Exhaustion vulnerability or weakness.
Products Associated with CVE-2023-40593
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Affected Versions
Splunk Enterprise:- Version 8.2 and below 8.2.12 is affected.
- Version 9.0 and below 9.0.6 is affected.
- Version - and below 9.0.2205 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.