Permissions, Privileges, and Access Controls in Microsoft Windows and Windows Server - CVE-2020-1337
Published: August 8, 2020 / Updated: April 6, 2021
Vulnerability identifier: #VU34127
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-1337
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vulnerability details
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)
Affected software
Microsoft Windows
Windows Server
Windows Server
How to mitigate CVE-2020-1337
Install updates from vendor's website.
Links to Public Exploits and PoC-codes
- Exploit #5274 - cve-2020-1337-poc () (April 6, 2021)
- Exploit #5027 - Microsoft Spooler Local Privilege Elevation Vulnerability (January 15, 2021)
- Exploit #4825 - Microsoft Windows Local Spooler Bypass (November 11, 2020)
- Exploit #4511 - cve-2020-1337-poc (poc for CVE-2020-1337 (Windows Print Spooler Elevation of Privilege)) (August 21, 2020)
- Exploit #4508 - CVE-2020-1337 (CVE-2020-1048 bypass: binary planting PoC) (August 21, 2020)