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AUSCERT Security Bulletin
ASB-2019.0061
Persistent Cross Site Scripting in Splunk Web (SPL-138827, CVE-2019-5727)
21 February 2019
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AusCERT Security Bulletin Summary
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Product: Splunk Enterprise
Splunk Light
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Cross-site Scripting -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2019-5727
Member content until: Saturday, March 23 2019
OVERVIEW
A persistent cross-site scripting vulnerability has been discovered in
Splunk Web. [1]
IMPACT
Splunk has provided the following information regarding this
vulnerability:
"Splunk Enterprise versions 6.5.x before 6.5.5, 6.4.x before 6.4.9,
6.3.x before 6.3.12, 6.2.x before 6.2.14, 6.1.x before 6.1.14, 6.0.x before
6.0.15 and Splunk Light before 6.6.0 are affected by a vulnerability that
allows an authenticated attacker to inject and store arbitrary JavaScript." [1]
"CVSS Severity (version 3.0):
CVSS Base Score 7.3
CVSS Impact Subscore 5.2
CVSS Exploitability Subscore 2.1
Overall CVSS Score 7.3" [1]
MITIGATION
Splunk has provided the following mitigation advice:
"To mitigate these issues, Splunk recommends upgrading to the latest release and
applying as many of the Hardening Standards from the Securing Splunk
documentation as are relevant to your environment. Splunk Enterprise and Splunk
Light releases are cumulative, meaning that future releases will contain fixes
to these vulnerabilities, new features and other bug fixes." [1]
REFERENCES
[1] Persistent Cross Site Scripting in Splunk Web (SPL-138827,
CVE-2019-5727)
https://www.splunk.com/view/SP-CAAAQAF
AusCERT has made every effort to ensure that the information contained
in this document is accurate. However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.
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Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
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