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AUSCERT Security Bulletin
ASB-2014.0113
Splunk Enterprise 6.1.4 and 5.0.10 address four vulnerabilities
2 October 2014
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AusCERT Security Bulletin Summary
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Product: Splunk Enterprise
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Cross-site Scripting -- Remote with User Interaction
Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2014-3511
Member content until: Saturday, November 1 2014
OVERVIEW
A number of vulnerabilities have been identified in Splunk
Enterprise versions prior to 6.1.4 and 5.0.10. [1]
IMPACT
The vendor has provided the following details regarding the
vulnerabilities:
"OpenSSL TLS protocol downgrade attack (SPL-88585, SPL-88587,
SPL-88588, CVE-2014-3511)
Description:
OpenSSL versions before 0.9.8zb, 1.0.0 before 1.0.0n,
and 1.0.1 before 1.0.1i does not properly handle fragmented ClientHello
messages. This permits a man-in-the-middle attack to force clients to use
TLS 1.0 even when both sides support higher protocol versions. The
vulnerability impacts all Splunk communications involving SSL including
universal forwarders, heavy forwarders, and Splunk Web.
Persistent cross-site scripting (XSS) in Dashboard (SPL-89216)
Description:
Persistent cross-site scripting (XSS) dashboard
vulnerability in Splunk Web in Splunk Enterprise 6.1.x before 6.1.4,
6.0.x before 6.0.6, and 5.0.x before 5.0.10 allows remote attackers
to inject arbitrary script.
Persistent cross-site scripting (XSS) in Event Parsing (SPL-85579)
Description:
Persistent cross-site scripting (XSS) event
vulnerability in Splunk Web in Splunk Enterprise 6.1.x before 6.1.4
and 6.0.x before 6.0.6.
Reflective cross-site scripting (XSS) referer header vulnerability
(SPL-85360)
Description:
Reflective cross-site scripting (XSS)
referer header vulnerability in Splunk Web in Splunk Enterprise
5.0.x before 5.0.10 allows remote attackers to inject arbitrary
script." [1]
MITIGATION
It is recommended that users update to the latest versions of Splunk
Enterprise to correct these issues. [1]
REFERENCES
[1] Splunk Enterprise 6.1.4 and 5.0.10 address four vulnerabilities
http://www.splunk.com/view/SP-CAAANHS
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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