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AUSCERT Security Bulletin
ASB-2016.0076
Multiple vulnerablities have been identified in PAN-OS
20 July 2016
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AusCERT Security Bulletin Summary
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Product: Palo Alto Networks firewalls
Operating System: PAN-OS
Network Appliance
Impact/Access: Increased Privileges -- Existing Account
Cross-site Scripting -- Remote with User Interaction
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2016-1712
Member content until: Friday, August 19 2016
OVERVIEW
Multiple vulnerablities have been identified in PAN-OS prior to
versions 5.0.19, 5.1.12, 6.0.14, 6.1.12, 7.0.8. [1 - 5]
IMPACT
The vendor has provided the following details regarding the issues:
Palo Alto Networks firewalls do not properly sanitize the
root_reboot local invocation which can potentially allow executing
code with higher privileges (Ref. 92293) (CVE-2016-1712).[1]
You can configure Palo Alto Networks firewalls to host a web-based
Captive Portal to authenticate users. A denial of service condition
was identified in this subsystem (Ref. 92413). [2]
Palo Alto Networks firewalls running the PAN-OS web interface are
subject to a cross-site scripting vulnerability (Ref. 93072). [3]
Palo Alto Networks firewalls use the cron infrastructure to perform
household system cleanup at regular intervals. Due to an error in
user input normalization, a file locally created by an end user and
placed in a specific directory could be executed in a higher
privilege context (Ref. 93612). [4]
Palo Alto Networks firewall administrators have the ability to
assign predefined permissions to users created on PAN-OS. A
read-only user with CLI access could elevate web interface
privileges. (Ref. 88191) [5]
MITIGATION
The vendor recommends updating to version PAN-OS releases 5.0.19,
5.1.12, 6.0.14, 6.1.12, 7.0.8 to correct the issues. [1 - 5]
REFERENCES
[1] Local privilege escalation (PAN-SA-2016-0012)
https://securityadvisories.paloaltonetworks.com/Home/Detail/45
[2] Captive Portal denial of service (PAN-SA-2016-0013)
https://securityadvisories.paloaltonetworks.com/Home/Detail/46
[3] Cross-site scripting issue in policy (PAN-SA-2016-0014)
https://securityadvisories.paloaltonetworks.com/Home/Detail/47
[4] Cron local privilege escalation (PAN-SA-2016-0015)
https://securityadvisories.paloaltonetworks.com/Home/Detail/48
[5] Web interface privilege escalation (PAN-SA-2016-0016)
https://securityadvisories.paloaltonetworks.com/Home/Detail/49
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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