Advisory ID: SVD-2022-1102
CVSSv3.1 Score: 3.0, Low
CVE ID: CVE-2022-43562
Last Update: 2022-11-02
CVSSv3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N
Bug ID: SPL-224156
In Splunk Enterprise versions below 8.1.12, 8.2.9, and 9.0.2, Splunk Enterprise fails to properly validate and escape the Host header, which could let a remote authenticated user conduct various attacks against the system, including cross-site scripting and cache poisoning.
For Splunk Enterprise, upgrade versions to 8.1.12, 8.2.9, 9.0.2, or higher.
For Splunk Cloud Platform versions below 9.0.2208, Splunk is actively patching and monitoring the Splunk Cloud instances. To request an immediate upgrade, determine which version of Splunk Cloud Platform you're running, then create a new support case.
|Product||Version||Component||Affected Version||Fixed Version|
|Splunk Enterprise||8.1||8.1.11 and lower||8.1.12|
|Splunk Enterprise||8.2||8.2.0 to 8.2.8||8.2.9|
|Splunk Enterprise||9.0||9.0.0 to 9.0.1||9.0.2|
|Splunk Cloud Platform||9.0.2205 and lower||9.0.2208|
Mitigations and Workarounds
Splunk rated the vulnerability as Low. The vulnerability could potentially let a remote authenticated user inject scripts or manipulate server side behavior through a specially crafted HTTP request. Splunk has not, however, observed a direct exploitation technique. Hence, Splunk scored the vulnerability as 3.0 with a CVSSv3.1 vector of CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N.
Ali Mirheidari at Splunk