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AUSCERT Security Bulletin
ASB-2018.0115
Tenable Nessus patched
16 May 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: Tenable Nessus
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Cross-site Scripting -- Existing Account
Unauthorised Access -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2018-1148 CVE-2018-1147
Member content until: Friday, June 15 2018
OVERVIEW
Vulnerabilities have been identified in Tenable Nessus prior to
version 7.1.0. [1]
IMPACT
The vendor has provided the following details regarding the
vulnerabilities:
"The first vulnerability (XSS) exists due to improper input validation. An
authenticated attacker could create and upload a .nessus file, that may be
viewed by an administrator allowing for the execution of arbitrary script code
in a user's browser session. In other scenarios, XSS could occur by altering
system variables from the Advanced Settings.
CVE-2018-1147 - CVSSv2 (AV:A/AC:H/Au:M/C:P/I:C/A:P/E:POC/RL:OF/RC:C/CDP:L/TD:L/CR:L/IR:L/AR:L)
The second vulnerability (Session Fixation) exists due to insufficient session
management. An authenticated attacker could maintain system access after a
password change due to session fixation.
CVE-2018-1148 - CVSSv2 (AV:N/AC:M/Au:S/C:N/I:P/A:N/E:POC/RL:OF/RC:C/CDP:L/TD:M/CR:ND/IR:ND/AR:ND)"
[1]
MITIGATION
The vendor advises upgrading to Nessus version 7.1.0. [1]
REFERENCES
[1] Nessus 7.1.0 Fixes Multiple Vulnerabilities
https://www.tenable.com/security/tns-2018-05
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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