CVE-2021-3422
Description
The lack of validation of a key-value field in the Splunk-to-Splunk protocol results in a denial-of-service in Splunk Enterprise instances configured to index Universal Forwarder traffic. The vulnerability impacts Splunk Enterprise versions before 7.3.9, 8.0 versions before 8.0.9, and 8.1 versions before 8.1.3. It does not impact Universal Forwarders. When Splunk forwarding is secured using TLS or a Token, the attack requires compromising the certificate or token, or both. Implementation of either or both reduces the severity to Medium.
Risk Information
Base Score
7.5
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
Exploitation Probability
0.392
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Vulnerabilities CVE-2021-3422 are fixed in Splunk Enterprise 8 8.0.9 | Windows |
| Vulnerabilities CVE-2021-3422 are fixed in Splunk Enterprise 8 (8.1.3) | Windows |
| Vulnerabilities CVE-2021-3422 are fixed in Splunk Enterprise 8 (x64) (8.1.3) | Windows |
| Vulnerabilities CVE-2021-3422 are fixed in Splunk Enterprise 8 (x64) 8.0.9 | Windows |
Patch Details
Click to see the patches provided by ManageEngine for this CVE
| Patch ID | Patch Description |
|---|---|
| PATCH-325532 | Splunk Enterprise 8 (8.2.7) |
| PATCH-325532 | Splunk Enterprise 8 (8.2.7) |
| PATCH-332589 | Splunk Enterprise 8 (x64) (8.2.12) |
| PATCH-332589 | Splunk Enterprise 8 (x64) (8.2.12) |
References
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234