Privilege escalation in Microsoft Windows



| Updated: 2020-08-12
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-1337
CWE-ID CWE-264
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains information about 1 vulnerabilities.

Updated 12.08.2020

Patch released.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU34127

Risk: Low

CVSSv3.1: 8.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]

CVE-ID: CVE-2020-1337

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.

Note, this vulnerability exists due to incomplete patching of SB2020051253 #1 (CVE-2020-1048)

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 7 SP1 - 10

Windows Server: 2008 R2 SP1 - 2019 2004

CPE2.3 External links

http://www.bleepingcomputer.com/news/security/unpatched-bug-in-windows-print-spooler-lets-malware-r...
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1337


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.



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