Multiple vulnerabilities in Palo Alto Networks GlobalProtect app



| Updated: 2020-06-11
Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2020-2032
CVE-2020-2033
CWE-ID CWE-367
CWE-295
Exploitation vector Local network
Public exploit N/A
Vulnerable software
 GlobalProtect Agent
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor Palo Alto Networks, Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

Updated: 6.11.2020

Provided correct links to affected versions, fixed CWE-ID for vulnerability #1.

1) Time-of-check Time-of-use (TOCTOU) Race Condition

EUVDB-ID: #VU28965

Risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-2032

CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a Time-of-check Time-of-use (TOCTOU) issue during upgrade. An local user can execute arbitrary programs with SYSTEM privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

GlobalProtect Agent: 5.0.0 - 5.1.3

CPE2.3 External links

https://security.paloaltonetworks.com/CVE-2020-2032


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Improper Certificate Validation

EUVDB-ID: #VU28966

Risk: Low

CVSSv4.0: 2.3 [CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-2033

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a man-in-the-middle (MitM) attack.

The vulnerability exists due to a missing certification validation, when the pre-logon feature is enabled. A remote attacker on the local network can perform a MitM attack, disclose the pre-logon authentication cookie and access the GlobalProtect Server as allowed by configured Security rules for the "pre-login" user.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

GlobalProtect Agent: 5.0.0 - 5.1.3

CPE2.3 External links

https://security.paloaltonetworks.com/CVE-2020-2033


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



###SIDEBAR###