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AUSCERT External Security Bulletin Redistribution
ESB-2019.4558
Security updates for PAN-OS in v7.1.25, v8.0.20, 8.1.8 and 9.0.5
5 December 2019
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AusCERT Security Bulletin Summary
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Product: PAN-OS
Publisher: Palo Alto
Operating System: Network Appliance
Impact/Access: Increased Privileges -- Existing Account
Access Privileged Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-17437 CVE-2019-1559
Original Bulletin:
https://securityadvisories.paloaltonetworks.com/Home/Detail/201
https://securityadvisories.paloaltonetworks.com/Home/Detail/202
Comment: This bulletin contains two (2) Palo Alto security advisories.
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Custom-role users may escalate privileges (CVE-2019-17437) (PAN-SA-2019-0038)
Last revised: 12/04/2019
Summary
An improper authentication check in Palo Alto Networks PAN-OS may allow an
authenticated low privileged non-superuser custom role user to elevate
privileges and become superuser. This issue only affects devices configured
with a low privileged custom-role user. This issue was discovered by an
external security researcher. This issue was internally tracked as PAN-115697.
This has been assigned CVE-2019-17437.
Severity: HIGH
CVSS Score for this issue is 7.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Products Affected
This issue affects PAN-OS 7.1 versions prior to 7.1.25; 8.0 versions prior to
8.0.20; 8.1 versions prior to 8.1.11; 9.0 versions prior to 9.0.5. PAN-OS
version 7.0 and prior EOL versions have not been evaluated for this issue.
Available Updates
This issue has been resolved in 7.1.25, 8.0.20, 8.1.11, 9.0.5 and all
subsequent versions.
Workarounds and Mitigations
Remove any untrusted custom-role users from the device or disable their access
until fixes can be applied. Restrict access to the device to only trusted
users.
Acknowledgements
Christophe Schleypen of NCIA / NCIRC
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OpenSSL vulnerability CVE-2019-1559 has been resolved in PAN-OS
(PAN-SA-2019-0039)
Last revised: 12/04/2019
Summary
The OpenSSL library has been updated in PAN-OS to resolve CVE-2019-1559. This
is a cryptographic vulnerability that under certain situations may allow a
remote attacker to decrypt data by observing server responses to different
types of errors. This issue was internally tracked as PAN-114984.
Severity: MEDIUM
CVSS Score for this issue is 5.9 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
Products Affected
This issue affects Palo Alto Networks PAN-OS 7.1 versions prior to 7.1.25; 8.0
versions prior to 8.0.20; 8.1 versions prior to 8.1.8; 9.0 versions prior to
9.0.2. PAN-OS 7.0 and prior EOL versions have not been evaluated for this
issue.
Available Updates
This issue has been fixed in 7.1.25, 8.0.20, 8.1.8, 9.0.2 and all subsequent
releases.
Workarounds and Mitigations
There are no available workarounds.
Acknowledgements
n/a
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