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AUSCERT External Security Bulletin Redistribution
ESB-2022.5618
Host Header Injection in Splunk Enterprise
7 November 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: Splunk Enterprise
Publisher: Splunk
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Resolution: Patch/Upgrade
CVE Names: CVE-2022-43562
Original Bulletin:
https://www.splunk.com/en_us/product-security/announcements/svd-2022-1102.html
Comment: CVSS (Max): 3.0 CVE-2022-43562 (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N)
CVSS Source: NVD
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N
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SPLUNK / PRODUCT SECURITY / SVD-2022-1102
Host Header Injection in Splunk Enterprise
Advisory ID: CVE ID: CVE-2022-43562
SVD-2022-1102
Published: 2022-11-02 Last Update: 2022-11-02
CVSSv3.1 Score: CVSSv3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/
3.0, Low I:N/A:N
CWE: CWE-20 Bug ID: SPL-224156
Description
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.
Solution
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 Status
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
None
Detections
None
Severity
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.
Acknowledgments
Ali Mirheidari at Splunk
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