Vulnerability identifier: #VU27876

Vulnerability risk: Low

CVSSv3.1: 5.1 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2020-5898

CWE-ID: CWE-824

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
BIG-IP APM
Hardware solutions / Security hardware applicances
APM Clients
Hardware solutions / Security hardware applicances

Vendor: F5 Networks

Description

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

The vulnerability exists due to the BIG-IP Edge Client Windows Stonewall driver does not sanitize the pointer received from the userland. A local user can send specially crafted DeviceIoControl requests to a \\.\urvpndrv device and crash the Windows kernel.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

BIG-IP APM: 11.6.1 - 15.1.0

APM Clients: 7.1.5 - 7.1.9

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External links
http://support.f5.com/csp/article/K69154630

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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.