Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2020.2022
GlobalProtect App vulnerabilities
11 June 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: GlobalProtect App
Publisher: Palo Alto
Operating System: Windows
Impact/Access: Increased Privileges -- Existing Account
Provide Misleading Information -- Remote/Unauthenticated
Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-2033 CVE-2020-2032
Original Bulletin:
https://securityadvisories.paloaltonetworks.com/CVE-2020-2032
https://securityadvisories.paloaltonetworks.com/CVE-2020-2033
Comment: This bulletin contains two (2) Palo Alto security advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
Palo Alto Networks Security Advisories / CVE-2020-2032
CVE-2020-2032 GlobalProtect App: File race condition vulnerability leads to
local privilege escalation during upgrade
047910
Severity 7 . HIGH
Attack Vector LOCAL
Attack Complexity HIGH
Privileges Required LOW
User Interaction NONE
Scope UNCHANGED
Confidentiality Impact HIGH
Integrity Impact HIGH
Availability Impact HIGH
NVD JSON
Published: 2020-06-10
Updated: 2020-06-10
Ref#: GPC-10583
Description
A race condition vulnerability Palo Alto Networks GlobalProtect app on Windows
allows a local limited Windows user to execute programs with SYSTEM privileges.
This issue can be exploited only while performing a GlobalProtect app upgrade.
This issue affects:
GlobalProtect app 5.0 versions earlier than GlobalProtect app 5.0.10 on
Windows;
GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.4 on Windows.
Product Status
GlobalProtect App
Versions Affected Unaffected
5.1 < 5.1.4 on Windows >= 5.1.4 on Windows
5.0 < 5.0.10 on Windows >= 5.0.10 on Windows
Severity: HIGH
CVSSv3.1 Base Score: 7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
Weakness Type
CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
Solution
This issue is fixed in GlobalProtect app 5.0.10, GlobalProtect app 5.1.4, and
all later GlobalProtect app versions.
Workarounds and Mitigations
Acknowledgements
Palo Alto Networks thanks Rich Mirch of TeamARES from Critical Start Inc for
discovering and reporting this issue.
Timeline
2020-06-10 Initial publication
Terms of usePrivacyProduct Security Assurance and Vulnerability Disclosure
Policy Report vulnerabilitiesManage subscriptions
(C) 2020 Palo Alto Networks, Inc. All rights reserved.
- --------------------------------------------------------------------------------
Palo Alto Networks Security Advisories / CVE-2020-2033
CVE-2020-2033 GlobalProtect App: Missing certificate validation vulnerability
can disclose pre-logon authentication cookie
047910
Severity 5.3 . MEDIUM
Attack Vector ADJACENT_NETWORK
Attack Complexity HIGH
Privileges Required NONE
User Interaction NONE
Scope UNCHANGED
Confidentiality Impact HIGH
Integrity Impact NONE
Availability Impact NONE
NVD JSON
Published: 2020-06-10
Updated: 2020-06-10
Ref#: GPC-10741
Description
When the pre-logon feature is enabled, a missing certification validation in
Palo Alto Networks GlobalProtect app can disclose the pre-logon authentication
cookie to a man-in-the-middle attacker on the same local area network segment
with the ability to manipulate ARP or to conduct ARP spoofing attacks. This
allows the attacker to access the GlobalProtect Server as allowed by configured
Security rules for the 'pre-login' user. This access may be limited compared to
the network access of regular users.
This issue affects:
GlobalProtect app 5.0 versions earlier than GlobalProtect app 5.0.10 when the
prelogon feature is enabled;
GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.4 when the
prelogon feature is enabled.
Product Status
GlobalProtect App
Versions Affected Unaffected
5.1 < 5.1.4 >= 5.1.4
5.0 < 5.0.10 >= 5.0.10
Severity: MEDIUM
CVSSv3.1 Base Score: 5.3 (CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
Weakness Type
CWE-290 Authentication Bypass by Spoofing
CWE-295 Improper Certificate Validation
Solution
This issue is fixed in GlobalProtect app 5.0.10, GlobalProtect app 5.1.4, and
all later GlobalProtect app versions.
Workarounds and Mitigations
The impact of this vulnerability can be mitigated by decreasing the allowed
timeout settings for the prelogon feature or by completely disabling the
feature in the GlobalProtect gateway.
Acknowledgements
Palo Alto Networks thanks Tom Wyckhuys and Nabeel Ahmed from NTT Belgium for
discovering and reporting this issue.
Timeline
2020-06-10 Initial publication
Terms of usePrivacyProduct Security Assurance and Vulnerability Disclosure
Policy Report vulnerabilitiesManage subscriptions
(C) 2020 Palo Alto Networks, Inc. All rights reserved.
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. 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.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
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.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
iQIVAwUBXuGLceNLKJtyKPYoAQh5HQ/+Jkv+KW/XVnnCXqpAKGPs2yLybaR9kfGZ
o+ocgxgoMBLKogfSqN/v/5Db6Frfp4mX9ADYp1JuAXfR0p0G+kFksCWLfJ2Rw489
1T18pMY7cb9EE1RPrYauBnJzW3ClOs70r3p2DQoVUChTiHd5xwmAP7UvCTqpP6qi
aUcRyEhERxQucJtTOGJ3kgzwv+Zu0tP0N1PyRNRQeO2BeDSyILrmVlFajXt9AIG4
APpKFee1VD+tzBIhZ8AYnLNPmvi3wySspMDOHJlpCI3gLkTKDUsMLe7jO7Na1AZC
YeaIp9HnGtQEgvgxQJ389CkDEzZ6I8QYxfpoAd7JDrokldiqeyIMgkvHsDWEflV2
KofIimLBGKZp7+XeoRouPq/1Pt92QEzcg1f0230LqTKBUgXDSTJJdW/j43UFmfj2
Vwp8NUOlzGtexLclMJ9nZPWVKaNtA9py1ssH4JF7a4szamtuFXqBhal1ses2vaoB
uk/GVJiYLO6t+2OdSc1l/UCJe2ACIfPD4uZ24aYhwBHrk1SqAZmiLjRY3EeMGbqa
0Deb+Uj+imKPr91mlM2vPae14InE4gDufyRVUaw28x7cBaXDkqpu0VSts200yP1A
II+R+k3A5PLnUvZEg8d5bT14aoSZO2eH8i+hWV39Ha4Al7WDAMLsynRxr18E9VyE
nnRGACk+n4o=
=E0nN
-----END PGP SIGNATURE-----