CVE-2020-1048 PoC — Windows Print Spooler Elevation of Privilege Vulnerability

Source

https://github.com/shubham0d/CVE-2020-1048

Associated Vulnerability

Title: Windows Print Spooler Elevation of Privilege Vulnerability (CVE-2020-1048)
Description:An elevation of privilege vulnerability exists when the Windows Print Spooler service improperly allows arbitrary writing to the file system. An attacker who successfully exploited this vulnerability could run arbitrary code with elevated system privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted script or application. The update addresses the vulnerability by correcting how the Windows Print Spooler Component writes to the file system.

Description

POC exploit code for CVE-2020-1048(PrintDemon)

Readme

# CVE-2020-1048
POC exploit code for CVE-2020-1048(PrintDemon)

## Vulnerable Systems
All Windows version below mentioned in the link are vulnerable: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1048
## Steps to reproduce
1) Change the variables `g_PortName` and `g_InputFile` present at the top of `Source.c`.
2) Compile and run using Visual studio.
3) Restart the printer service(spoolsv) or Restart your system.

## Notes
* In case you want to persist the port and printer creation or want the attack to occur after restart of system, you can exit the program using Ctrl^C once the program ask to press Enter.
* `getshell.dll` is included which you can use as a payload to spawn a command prompt as `SYSTEM` privilege.
# Reference
https://windows-internals.com/printdemon-cve-2020-1048/
<br/>
https://github.com/ionescu007/PrintDemon

File Snapshot

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