SB2021012908 - Remote command execution in Windows PowerShell



SB2021012908 - Remote command execution in Windows PowerShell

Published: January 29, 2021

Security Bulletin ID SB2021012908
Severity
Medium
Patch available
NO
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) OS Command Injection (CVE-ID: N/A)

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation within the shell handler for opening a folder in PowerShell. Crafted data in a folder name can trigger execution of a system call composed from a user-supplied string. A remote attacker can trick the victim to open a specially crafted file and execute arbitrary commands on the system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.