Privilege escalation in Windows Print Spooler

Published: 2020-05-12 | Updated: 2023-07-03

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2020-1048 CVE-2020-1070
CWE-ID	CWE-264
Exploitation vector	Local
Public exploit	Public exploit code for vulnerability #1 is available. Public exploit code for vulnerability #2 is available.
Vulnerable software Subscribe	Windows Operating systems & Components / Operating system Windows Server Operating systems & Components / Operating system
Vendor	Microsoft

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU27837

Risk: Low

CVSSv3.1: 7.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C]

CVE-ID: CVE-2020-1048

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: Yes

Description

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

The vulnerability exists due to the Windows Print Spooler service improperly allows arbitrary writing to the file system. A local user can use a specially crafted application to execute arbitrary code on the target system with elevated privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 7 - 10 1909

Windows Server: 2008 - 2019 1909

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1048

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. However, a fully functional exploit for this vulnerability is available.

2) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU27838