#VU48909 Error handling in Cortex XDR Agent for Windows - CVE-2020-2020

Vulnerability identifier: #VU48909

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-2020

CWE-ID: CWE-388

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Cortex XDR Agent for Windows
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: Palo Alto Networks, Inc.

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient handling of exceptional conditions in in Cortex XDR Agent. A local user can create files in the software's internal program directory that prevents the Cortex XDR Agent from starting when the software or machine is restarted.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cortex XDR Agent for Windows: 5.0.0 - 5.0.9, 6.1.0 - 6.1.6, 7.0.0 - 7.0.2, 7.1.0 - 7.1.1

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External links
https://security.paloaltonetworks.com/CVE-2020-2020

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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.